Open access peer-reviewed chapter

Graphene-Like Nanocomposites

Written By

Zahra Rafiei-Sarmazdeh and Seyed Javad Ahmadi

Submitted: December 15th, 2018 Reviewed: February 27th, 2019 Published: June 19th, 2019

DOI: 10.5772/intechopen.85513

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After discovering graphene and its extraordinary intrinsic, other graphene-like nanomaterials (GLNs) became a topic of interest to many scientists of the time. Recently, GLNs, nanosheets of sp2-hybridized atoms arranged in a two-dimensional lattice with impressive thermal, mechanical, and electrical properties, has attracted both academic and industrial interest because it can produce dramatic improvements in properties at very low filler content. Many studies have been performed on GLNs with various applications, including boron nitride nanosheets, transition metal dichalcogenides, and other two-dimensional (2D) nanomaterials. This rapid advance provides a strong appetence for further research on properties of GLNs, including mechanical, electrical and thermal properties and their potential applications in the nanocomposites industry.


  • graphene-like
  • nanocomposite
  • boron nitride
  • two-dimensional
  • nanomaterials
  • polymer

1. Introduction

Composite is a combination of at least two components (or phases) that are chemically distinctly different, and these components are not dissolvable. Properties and performance of composites strongly depend on their components. In general, in the composite, there is at least one non-interconnected component, called filler or reinforcement, surrounded by a continuous phase, called matrix [1].

Recently, nanocomposites have attracted a lot of attention. Nanocomposite is actually a composite that at least one of its constituents, typically filler, is in dimensions ranging from 1 to 100 nm. The nanomaterials are incorporated within the matrix for particular purposes such as strength, resistance, electrical conductivity, magnetic properties etc.

A great effort is being made to control nanoscale structures through new approaches. The physical, chemical, and biological properties of nanomaterials are different from the properties of atoms and molecules or even bulk materials. However, the properties of nanocomposites depend not only on the properties of filler and matrix, but also on the morphological and interfacial characteristics of these materials. Nanomaterials have a high surface-to-volume ratio, which makes them ideal for use in nanocomposite materials [2].

There are several categories for composite and nanocomposite classification. One of these categories is based on the type of matrix material. On this basis, there are various composites including [3, 4]:

  • Polymer matrix composites (PMCs): In commercial applications, these composites have a high rating compared to other types of composites. Various filler materials can be used in this type of composite. The matrix can be made of thermo-plastic and thermo-set polymers.

  • Metal matrix composites (MMCs): This category, which is considered an advanced building material, consists of non-metal fillers in a metal matrix. MMCs are mainly used in engineering applications, in cases where the operating temperature is in the range of 250–750°C. Copper, aluminum, titanium and super alloys are widely used to make these composites.

  • Ceramic matrix composites (CMCs): This category is considered an advanced building material made of metal/non-metallic fillers in a ceramic matrix. CMCs are used in engineering applications with the operating temperature is in the range of 800–1650°C.

The use of polymer composites due to its inherent properties has grown considerably compared to other composites. High strength and modulus, fatigue resistance, high flexibility, multi-functional performance, easy to process, low weight of structure and low cost processing are the features of this category of composites than other composites.

In recent years, two-dimensional (2D) nanomaterials have drawn considerable interest for exploring potential applications. 2D nanomaterials are laminated crystals that exhibit unusual physical-chemical properties in thicknesses of atomic layers (Figure 1). Graphene as a famous member of the family of 2D nanomaterial is a honeycomb network of carbon atoms, co-located with sp2 hybridize and forming a single graphene atomic layer [5, 6]. Graphene is indubitably one of the most important nanomaterials in the world, which the combination of unique properties in it makes a long way to discover a wide range of applications from electronics to optics [7, 8], sensors [9, 10], biology [11], coating, composite [12, 13] and etc.

Figure 1.

Schematic view of 2D nanomaterials, a single layer of graphene, boron nitride and transition metal dichalcogenide [15].

Since 2004, when a single layer graphene was discovered by Novoselov [14], for the first time, various studies were carried out on a variety of graphene-like nanomaterials (GLNs), their properties and application. One of the most important uses of GLNs is the usage as filler in polymer composites due to their unique mechanical, electrical and thermal properties.

The scientists and researchers are encouraged to use other 2D nanomaterials such as boron nitride nanosheets (BNNSs) and metal dichalcogenide nanosheets for producing nanocomposite when observed amazing properties of graphene as reinforcement material for polymer-based composites. Generally, 2D nanomaterials have unique properties for using as reinforcement in nanocomposites, which include: (i) ultrathin 2D nanosheets have high special surface area, (ii) they have high surface-to-volume atomic ratio, therefore are chemically suitable for functionalizing and so their dispersion improves in polymer matrix. (iii) They have unique mechanical, thermal and electrical characteristics, which make them an ideal candidate for reinforcement of nanocomposites [16].

In comparison to the zero-dimensional (0D) nanomaterials such as BN nanoparticles or one-dimensional (1D) nanomaterials, such as boron nitride nanotubes (BNNTs), due to the special structure of 2D nanomaterials, contacting or overlapping nanosheets with each other throughout polymeric matrix could form an interconnected network of 2D layers. As a result, the percolation threshold of 2D nanocomposite is lower than other nanocomposites. This means that better properties can be achieved at much lower amounts of reinforcement, which decreases the cost of composite construction.

The other important advantage of the 2D nanosheets is their high surface area, which allows for the proper interaction of filler with polymeric matrix. This interaction results in a dramatic improvement in the properties of the matrix. However, the mentioned properties could be diminished, if the filler is not suitably dispersed or the conditions are created to allow the particles to agglomerate together during the nanocomposite manufacturing. The van der Waals force (vdW) between the layers can lead to agglomeration of nanosheets, which has a negative effect on the properties. On an industrial scale, maintaining the cost of competitive production with a high degree of dispersion and low content of filler is the goal, and therefore the manufacturing processes of these nanocomposites with unique properties that have the capacity to scale up is very valuable.

GLNs are instant and important nanomaterials that have outlandish mechanical and functional properties. Due to their extraordinary properties, these materials have the potential to be recognized as generations of next generation composites with maximum structural and/or functional reinforcement in a minimum amount of filler. Adding these nanomaterials significantly improves the mechanical properties of the polymer matrix. Thermal, electrical conductivity and dimensional stability of nanocomposite significantly change. In addition, the unique properties of each of these nanosheets will appear in the final nanocomposite.

However, the research on GLNs polymer-based nanocomposites is still in its early stages. Little research has been done on the properties of these nanocomposites, such as optical properties, irradiation properties and biocompatibility. The reason is not that these studies are not important or interesting, but rather, the production of GLNs nanocomposite is difficult due to low-yield and high-cost methods to synthesis of GLNs. This prevents the rapid progress of research on properties and application of GLNs polymer-based nanocomposites.

In this chapter, we focus on a summary of recent developments in 2D graphene-like nanomaterials in the manufacture of polymer nanocomposites. We have also reviewed the synthesis methods of GLNs and the processing polymer-based nanocomposites. Some applications of these nanomaterials have been investigated. Ultimately, we have studied the problems and limitations facing this category of nanocomposites.


2. Synthesis approach of graphene-like nanomaterials

2D nanosheets are synthesized using a variety of methods based on two top-down and bottom-up approaches. In top-down approach, the bulk of the parent material is used and the final 2D nanosheets are produced during the processes. This approach can be cost-effective depending on the material used. In this view, 2D nanomaterials are produced by methods such as separation, peeling, cleavage and exfoliation. Micromechanical cleavage, ball milling, liquid/chemical exfoliation and functionalization (covalent and non-covalent) are common methods in this category [17, 18, 19, 20, 21, 22, 23, 24, 25].

In the bottom-up, the precursor materials are used for producing of GLNs, with methods such as chemical synthesis, chemical vapor deposition (CVD) and plasma-enhanced chemical vapor deposition (PECVD). However, there are the main challenges facing researchers in this field. One of them is the need for high amounts of nanomaterials and low yield synthesis methods of these nanomaterials. A great effort is being made for improvement the efficiency of the synthesis of these nanosheets [26, 27, 28].

In general, interfacial interaction is believed to play an important role in determining the final properties of polymer nanocomposites. Interfacial interaction between the polymer matrix and the filler materials includes van der Waals interactions, hydrous bonds, covalent bonds, and ionic bonds [29]. Hence, many efforts have been made to develop and improve interfacial interactions of nanocomposites including filler or matrix. The functionalization of the filler surface and the use of compatibilizer are common to be modified the surface of filler in terms of polar/nonpolar nature and to be able to interact with the polymeric matrix due to the hydrophobic/hydrophilic nature of polymers used in the composite and coating industry.


3. Graphene-like nanocomposites and their importance

Due to inherent and impressive properties of mechanical, electronic and thermal conductivity of GLNs, these compounds are considered as a promising candidate for using in polymer nanocomposites as fillers. Compared to conventional composites, these nanocomposites show a dramatic increase in properties, even in a low content of filler. Hence, the 2D nanomaterials and GLNs based-nanocomposites are not only lighter, but also have more and stronger multi-functional properties. As mentioned in the previous section, due to the high surface area of GLNs, the physicochemical interaction of the filler with the polymeric matrix enhances. This helps strengthen and enhancement of interfacial bonding between layers of GLNs and polymer matrix [30].

According to the interaction between filler and polymer matrix, polymer composites are divided into three groups; conventional or immiscible composites, intercalated composites, and exfoliated or miscible composites (Figure 2). In conventional composites, 2D nanosheets remain as agglomerates in the polymer matrix and retain their original structure. The diffraction pattern of conventional composites is the same as that for the first powder of these nanosheets. In intercalated nanocomposites, polymer chains are intercalated between 2D layers, which partially open the layers. The characteristic peak displacement of these nanosheets to lower angles represents intercalating. In the third group, the suitable interaction between filler and the polymer matrix leads to the complete exfoliation of the layers by the polymer chains. The characteristic peak related to these nanosheets disappears in the diffraction pattern of these nanocomposites. In practice, however, it is rarely possible to achieve complete exfoliation [31, 32].

Figure 2.

Schematic view of different groups of composites; conventional, intercalated and exfoliated nanocomposites.


4. Processing

The final properties of nanocomposites depend on the method and processing conditions. Most polymer composites are processed using the following methods: (i) melt processing (ii) solvent processing (iii) In-situ polymerization; (iv) electrospinning and (v) layer by layer (LBL) assembly (Figure 3).

Figure 3.

Schematic image of basic set-up of processing methods of composites (a) melt processing, (b) solvent processing, (c) in-situ polymerization, (d) electrospinning and (e) layer by layer (LBL) assembly.

The melt mixing method is one of the most economical and environmentally friendly methods used to make nanocomposites. In fact, this process is the choice of most industries. The mixing of materials is often done through a single or double extruder, in such a way that the reinforcement is mixed with the molten polymer. The mixer uses shear force to separate the filler agglomerates and disperse them throughout the polymeric matrix (Figure 3(a)). Another point of this method is the lack of any solvent for processing. Most polymers used in this method include low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene (PP), polystyrene (PS), poly(methyl methacrylate) (PMMA), polyamide polyester and polycarbonate [30, 33, 34, 35, 36, 37].

Solution mixing is another way of producing nanocomposites containing GLNs. In this method, the nanomaterials and polymers are dissolved in the solvent before being molded and then the solvent is evaporated (Figure 3(b)). In this method, both thermoset and thermoplastic polymers can be used. Polymers such as PMMA, polyvinyl alcohol, poly(hydroxy amino ether), PS, polyethylene (PE), polyethylene oxide (PEO) and epoxy can be used. Low viscosity of polymer in the solution (contrary to the molten method) with mechanical stirring or ultrasonic waves can help the better dispersity of nanosheets in the polymeric matrix [16]. Different solvents can be put in this category such as chloroform, acetonitrile and toluene [38, 39, 40].

Another technique is in situ polymerization that both thermoset and thermoplastic polymers can be used. The filler should be dispersed in the monomer that is supposed to polymerize (Figure 3(c)). Polymerization begins with the use of a chemical that initiates the reaction or the mixing of the two monomers or with the help of temperature. One of the advantages of this method is the ability to graft polymer molecules to the filler surface and better dispersion of nanosheets. This technique can be used to make polymer composites that are not soluble in common solvents or are thermally unstable (for melt mixing). This method has been used in the development of PE [41], PP [42], PMMA [43], nylon 6 [44], PU [45], polylactic acid (PLA) [46], etc. composites.

Another method used to make this type of nanocomposite is electrospinning, which has been reported with the use of polymers such as polyimide, polyurethane (PU) [47], poly(vinyl alcohol) (PVA) [48], gelatin [49], nylon 6 [50], polyaniline (PANI) [51]. In this method, nanosheets orientation is possible along the axis of the fibers (Figure 3(d)). Electrospun diameter of polymer fibers can be controlled in the range of tens of nanometers to several micrometers [16].

Another possible way to achieve the proper dispersion of GL nanosheets in the polymeric matrix is layer by layer (LBL) assembly while to maintain the unique properties of the components (Figure 3(e)). This technique is obtained by sequential absorption of the charged components in opposite direction by attractive forces such as electrostatic, hydrogen bonding, etc. Therefore, multi-layer structures using the LBL assembly can be manufactured reproducibly, so that it is possible to control the thickness and composition of hybrid nanocomposite at the nanoscale level [52].

Despite the successful use of various methods in the synthesis of these nanocomposites, there is still a lack of information about: (1) the use of a suitable method for a particular compound of a matrix and reinforcement; (2) the maximum reinforcement content for achieving an optimal combination of properties and the low costs [16]. Therefore, it is still necessary to use the simulation and modeling method to achieve the answer to these unbeknownst.


5. Application of graphene-like nanocomposite

Depending on the type of GLNs and its inherent properties, the designed properties of nanocomposite can be received. Extraordinary properties of GLNs, such as BNNSs, including high thermal properties, structural stability, good mechanical properties, and antioxidant ability, have attracted the attention of researchers to use as a filler [53, 54]. A summary of the application of GLNs nanocomposites is shown in Figure 4.

Figure 4.

A summary of the application of GLNs nanocomposites.

Fillers with a high aspect ratio and crystallinity can improve thermal conductivity and reduce Kapitza resistance [55, 56]. For example, most thermoplastic polymers, such as polyethylene, polypropylene, polyamide and thermosets such as epoxy, are insulating and have very low thermal conductivity, but these properties can be improved by adding fillers such as boron nitride. The use of BN in insulating polymer matrix is the solution if both of electrical properties and thermal conductivity are needed in an electronic device [57]. So far, few studies have been carried out on the thermal conductivity of thermoplastics filled with 2D boron nitride [58, 59, 60, 61, 62, 63, 64, 65]. Therefore, researchers focus the investigation on the effect of filler (chemical composition, morphology, surface characteristics, shape and size) on electrical conductivity.

The application of epoxy as a thermoset polymer is highly sought-after due to high chemical resistance, corrosion and significant mechanical properties. However, due to very low thermal conductivity (0.15–0.35 W/mK), its use in electronic tools and carbon fiber reinforced plastic (CFRP) tooling is limited. Hence, researchers have used BNNSs to improve the thermal conductivity of this polymer [66, 67].

PVA/BNNSs can be used to make memory devices, due to the huge potential of trapping charge carriers and to perceive the non-volatile memory effect. In these devices, a thin film of hybrid nanocomposite is used as a sandwiched active layer between two conductive electrodes to form the memristor structure [68].

Flexible insulation nanocomposites such as PU/BN nanocomposites show high thermal conductivity that are a desirable option for miniaturization of high-power electronics and portable devices [69].

Polymer materials are widely used in most important industries. However, these materials are high-risk materials to burn, and most of them are decomposed with the emission of toxic gases. Therefore, nanocomposite modification is necessary to reduce their flammability. There are three common strategies to achieve this: the use of inherently flame resistant polymers, flame retardant materials and surface/coating modifications. Usually, a small amount of filler can improve the thermal properties of the nanocomposite. 2D graphene-like nanomaterials as inorganic fillers, if they are well spread on the polymer matrix, can create a physical barrier inside the polymer and prevent the penetration of heat and degradation of polymeric materials. Totally, the addition of 2D nanosheets results in the thermal stability of polymers. This effect can be due to the thermal stability of filler and the barrier effect of these nanomaterials, which leads to the resistance of the nanocomposite to thermal degradation and prevents the penetration of degradation products from the polymer matrix to the gas phase. Several studies have been carried out on the effects of these nanomaterials on the thermal stability of various polymers [61, 70].

GL nanomaterials are capable of separating, organic pollution absorption, water and wastewater treatment, contaminant elimination from oil, due to the nanosheet structure, the polarity of bonds and the high surface area. In practical application and in different situations, these nanosheets due to their powdery state and the ease of collection after separation require for the embedding in a substrate. Therefore, polymer-based nanocomposites of GLNs such as polyvinylidene fluoride (PVDF) (due to high chemical resistance) are used [71, 72, 73].

One of the special applications of BNNSs is the neutron shielding property, due to intrinsic property of boron in absorbing neutrons. The placement of boron nitride in a polymeric matrix can produce a multifunctional nanocomposite that exhibits structural, radiation protection, and even resistance to flame. These polymer nanocomposites can be used in spacecraft and nuclear reactors. NASA has focused on the protective properties of nanocomposites containing BNNSs in a polyethylene matrix [74, 75].

Since graphene and graphene oxide have been successfully used in biomedical applications, much attention has been paid to GLNs due to their 2D structure, which is similar to graphene. Polymers, on the other hand, were used in bio-detecting research because of low weight, ease of fabrication, and relatively low cost of processing. The simultaneous use of 2D materials and polymers offers a lot of potential to the researchers. BN has a high biocompatibility due to its excellent chemical stability, good process—ability and good biology activity [76]. For example, chitosan/BN nanocomposites have been used as protective coating for stainless steel. Also, BN is used to strengthen polypropylene as a bio-composite for bone prosthesis [77].

The water-soluble polymers have a widespread in biomedical science. The polyethylene glycol (PEG) nanocomposite containing MoS2 nanosheets has been used as a multi-functional drug carrier for combined cancer therapy [78]. Also, PEG nanocomposites containing WS2 have been used as a multifunctional agent for dual-modal CT/photoacoustic imaging in photo-thermal therapy [79]. Also, MoS2-based nanocomposites are used in DNA sensors to detect DNA molecules [80].

Another application of GLNs nanocomposites are the increasing the impermeability of nanocomposites against oxygen that used in the food packaging industry. Most polymers used in this industry suffer from the problem of oxygen penetration. 2D nanosheets form a strong barrier against oxygen penetration due to their layered structure. For example, the nanocomposites based on cellulose nanofibers containing BNNSs prevent the penetration of oxygen. In addition, GLNs improve the mechanical properties of the nanocomposite and does not alter the brittleness [81].


6. Future outlook

The fillers based on GL nanomaterials are at the beginning of their path to expand. However, there are several fundamental challenges that must be considered before fully understanding their effects in polymer composites.

  1. Distribution of fillers in the polymeric matrix is important to achieve the properties of nanocomposites. However, most of the composite processing methods are not economically optimal. Solvent processing, LBL assembly and electrospinning have a better result in dispersion of the filler but are not economically affordable. The melt processing method is economical, but the filler has no proper dispersion and the final properties are less than optimal.

  2. GL nanomaterials can act as nucleating sites and affect the polymer’s crystallinity. Therefore, the degree of dependence of the crystallinity value on the mechanical properties of the composites should be investigated.

  3. The development and quality of nanocomposites containing GL nanomaterials depend on several factors, including the type of filler, the number of layers, the purity of the filler, the amount of dispersion in the polymer, and the interaction between the filler and the polymer matrix. However, so far, no systematic study has been done to compare the effect of aspect ratio, filler purity, functionalization degree, and the types of functional groups on the properties of nanocomposites.


7. Conclusions

Graphene-like nanomaterials and polymer-based nanocomposites demonstrate the increasing growth in technology and applications. In this study, recent advances in the production of polymer-filled nanocomposites with GLNs were investigated, properties and applications of these materials. Although these materials are in the early stages of development, their value added and their ability to address them is quite evident. Of course, one should take into account the unfulfilled expectations of graphene nanocomposites and consider the challenges and problems involved in the development of these materials that need to be solved and used them to develop polymer-filled with GLNs.

The first challenge is the production of GLNs. On the other hand, high-quality and large-scale of GLNs preparation at affordable cost is still not possible. Although recent steps have been taken for this purpose seriously, but new synthesis methods should be created to reduce the use of acid and solvent.

The second major challenge is the nanocomposite production process. The full utilization of GLNs-filled nanocomposites with the good dispersion of GLNs increases the cost-effectiveness of final nanocomposite production. Many efforts have been made to improve and enhance the properties of nanocomposites by modifying the interfacial interaction of filler and polymer matrix through functionalization or use the compatibilizers. Several studies use the functionalization of filler in order to create strong interaction between GLNs with a polymer matrix. This improves bonding between GLNs and polymer, which improves stress transfer, increases thermal stability and other properties. Efforts in this field can lead to the production of nanocomposites that have widespread use in the field of bio-detecting, drug delivery, food packaging, thermal shields, contamination absorption, electronics device etc.


Conflict of interest

The authors declare that they have no conflict of interest.


  1. 1. Papageorgiou DG, Kinloch IA, Young RJ. Mechanical properties of graphene and graphene-based nanocomposites. Progress in Materials Science. 2017;90:75-127. DOI: 10.1016/j.pmatsci.2017.07.004
  2. 2. Okpala CC. Nanocomposites—An overview. International Journal of Engineering Research and Development. 2013;8(11):17-23. e-ISSN: 2278-067X
  3. 3. Wan RM, Zheng SR, Zheng Y. Polymer Matrix Composites and Technology. 1st ed. Cambridgeshire, England: Woodhead Publishing Limited; 2011
  4. 4. Beaumont PWR, Zweben CH. Comprehensive Composite Materials II. 2nd ed. Amsterdam, Netherlands: Elsevier; 2018
  5. 5. Nag A, Raidongia K, Hembram KPSS, Datta R, Waghmare UV, Rao CNR. Graphene analogues of BN: Novel synthesis and properties. ACS Nano. 2010;4(3):1539-1544. DOI: 10.1021/nn9018762
  6. 6. Wang J, Ma F, Sun M. Graphene, hexagonal boron nitride, and their heterostructures: Properties and applications. RSC Advances. 2017;7:16801-16822. DOI: 10.1039/C7RA00260B
  7. 7. Avouris P. Graphene: Electronic and photonic properties and devices. Nano Letters. 2010;10(11):4285-4294. DOI: 10.1021/nl102824h
  8. 8. Antonio T, Patrick GS. Graphene: From functionalization to devices. Journal of Physics D: Applied Physics. 2014;47(9):090201. DOI: 10.1088/0022-3727/47/9/090201
  9. 9. Shao Y, Wang J, Wu H, Liu J, Aksay IA, Lin Y. Graphene based electrochemical sensors and biosensors: A review. Electroanalysis. 2010;22(10):1027-1036. DOI: 10.1002/elan.200900571
  10. 10. Justino CIL, Gomes AR, Freitas AC, Duarte AC, Rocha-Santos TAP. Graphene based sensors and biosensors. Trends in Analytical Chemistry. 2017;91:53-66. DOI: 10.3390/s17102161
  11. 11. Pumera M. Graphene in biosensing. Materials Today. 2011;14(7):308-315. DOI: 10.1016/S1369-7021(11)70160-2
  12. 12. Deshmukh K, Joshi GM. Embedded capacitor applications of graphene oxide reinforced poly(3,4-ethylenedioxythiophene)-tetramethacrylate (PEDOT-TMA) composites. Journal of Materials Science: Materials in Electronics. 2015;26(8):5896-5909. DOI: 10.1007/s10854-015-3159-0
  13. 13. Luong ND, Hippi U, Korhonen JT, Soininen AJ, Ruokolainen J, Johansson L-S, et al. Enhanced mechanical and electrical properties of polyimide film by graphene sheets via in situ polymerization. Polymer. 2011;52(23):5237-5242. DOI: 10.1016/j.polymer.2011.09.033
  14. 14. Novoselov KS, Geim AK, Morozov SV, Jiang D, Zhang Y, Dubonos SV, et al. Electric field effect in atomically thin carbon films. Science. 2004;306(5696):666. DOI: 10.1126/science.1102896
  15. 15. New Devices and New Physical Effects with Automically Thin Stacks. Arkansas: Churchill Lab. Available from:
  16. 16. Bhattacharya M. Polymer nanocomposites—A comparison between carbon nanotubes, graphene, and clay as nanofillers. Materials. 2016;9(4):262-296. DOI: 10.3390/ma9040262
  17. 17. Streletskii AN, Permenov DG, Bokhonov BB, Kolbanev IV, Leonov AV, Berestetskaya IV, et al. Destruction, amorphization and reactivity of nano-BN under ball milling. Journal of Alloys and Compounds. 2009;483(1–2):313-316. DOI: 10.1016/j.jallcom.2008.08.088
  18. 18. Li LH, Chen Y, Behan G, Zhang H, Petravic M, Glushenkov AM. Large-scale mechanical peeling of boron nitride nanosheets by low-energy ball milling. Journal of Materials Chemistry. 2011;21(32):11862-11866. DOI: 10.1039/C1JM11192B
  19. 19. Pu F. High yield production of inorganic graphene-like materials (MoS2, WS2, BN) through loquid exfoliation testing key parameters [thesis]. Department of Materials Science and Engineering, Massachusetts Institute of Technology; 2012
  20. 20. Cao L, Emami S, Lafdi K. Large-scale exfoliation of hexagonal boron nitride nanosheets in liquid phase. Materials Express. 2014;4(2):165-171. DOI: 10.1166/mex.2014.1155
  21. 21. André C, Guillaume YC. Boron nitride nanotubes and their functionalization via quinuclidine-3-thiol with gold nanoparticles for the development and enhancement of the HPLC performance of HPLC monolithic columns. Talanta. 2012;93:274-278. DOI: 10.1016/j.talanta.2012.02.033
  22. 22. Lin Y, Williams TV, Cao W, Elsayed-Ali HE, Connell JW. Defect functionalization of hexagonal boron nitride nanosheets. Journal of Physical Chemistry C. 2010;114:17434-17439. DOI: 10.1021/jp105454w
  23. 23. Magda GZ, Pető J, Dobrik G, Hwang C, Biró LP, Tapasztó L. Exfoliation of large-area transition metal chalcogenide single layers. Scientific Reports. 2015;5:14714-14718. DOI: 10.1038/srep14714
  24. 24. Costa MCF, Ribeiro HB, Kessler F, Souza EAT, Fechine GJM. Micromechanical exfoliation of two-dimensional materials by a polymeric stamp. Materials Research Express. 2016;3(2):025303-025307. DOI: 10.1088/2053-1591/3/2/025303
  25. 25. Brent JR, Savjani N, O'Brien P. Synthetic approaches to two-dimensional transition metal dichalcogenide nanosheets. Progress in Materials Science. 2017;89:411-478. DOI: 10.1016/j.pmatsci.2017.06.002
  26. 26. Lin Z, McCreary A, Briggs N, Subramanian S, Zhang K, Sun Y, et al. 2D materials advances: From large scale synthesis and controlled heterostructures to improved characterization techniques, defects and applications. 2D Materials. 2016;3(4):042001-042038. DOI: 10.1088/2053-1583/3/4/042001
  27. 27. Yu J, Hu X, Li H, Zhou X, Zhai T. Large-scale synthesis of 2D metal dichalcogenides. Journal of Materials Chemistry C. 2018;6(17):4627-4640. DOI: 10.1039/C8TC00620B
  28. 28. Wang H, Zhao Y, Xie Y, Ma X, Zhang X. Recent progress in synthesis of two-dimensional hexagonal boron nitride. Journal of Semiconductors. 2017;38(3):031003-031016. DOI: 10.1088/1674-4926/38/3/031003
  29. 29. Bhuvana S, Prabakaran M. Synthesis and characterisation of polyamide/halloysite nanocomposites prepared by solution intercalation method. Nanoscience and Nanotechnology. 2014;4:44-51. DOI: 10.3390/ma9040262
  30. 30. Dhand V, Rhee KY, Ju Kim H, Ho Jung D. A comprehensive review of graphene nanocomposites: Research status and trends. Journal of Nanomaterials. 2013;2013:1-14. DOI: 10.1155/2013/763953
  31. 31. Paul DR, Robeson LM. Polymer nanotechnology: Nanocomposites. Polymer. 2008;49(15):3187-3204. DOI: 10.1016/j.polymer.2008.04.017
  32. 32. Chen B, Evans JRG, Greenwell HC, Boulet P, Coveney PV, Bowden AA, et al. A critical appraisal of polymer-clay nanocomposites. Chemical Society Reviews. 2008;37(3):568-594. DOI: 10.1039/B702653F
  33. 33. Coleman JN, Khan U, Blau WJ, Gun’ko YK. Small but strong: A review of the mechanical properties of carbon nanotube-polymer composites. Carbon. 2006;44(9):1624-1652. DOI: 10.1016/j.carbon.2006.02.038
  34. 34. Kim H, Abdala AA, Macosko CW. Graphene/polymer nanocomposites. Macromolecules. 2010;43(16):6515-6530. DOI: 10.1021/ma100572e
  35. 35. Salavagione HJ, Castelaín M, Shuttleworth PS, Martínez G, Gómez-Fatou MA, Marco C, et al., editors. Graphene based polymer nanocomposites: Chemical incorporation strategies and property enhancement. In: 16th European Conference on Composite Materials, ECCM 2014. 2014
  36. 36. Jiang X, Drzal LT. Improving electrical conductivity and mechanical properties of high density polyethylene through incorporation of paraffin wax coated exfoliated graphene nanoplatelets and multi-wall carbon nano-tubes. Composites Part A: Applied Science and Manufacturing. 2011;42(11):1840-1849. DOI: 10.1016/j.compositesa.2011.08.011
  37. 37. El Achaby M, Qaiss A. Processing and properties of polyethylene reinforced by graphene nanosheets and carbon nanotubes. Materials and Design. 2013;44:81-89. DOI: 10.1016/j.matdes.2012.07.065
  38. 38. Aranda P, Ruiz-Hitzky E. Poly(ethylene oxide)-silicate intercalation materials. Chemistry of Materials. 1992;4(6):1395-1403. DOI: 10.1021/cm00024a048
  39. 39. Shen Z, Simon GP, Cheng Y-B. Comparison of solution intercalation and melt intercalation of polymer-clay nanocomposites. Polymer. 2002;43(15):4251-4260. DOI: 10.1016/S0032-3861(02)00230-6
  40. 40. Furuichi N, Kurokawa Y, Fujita K, Oya A, Yasuda H, Kiso M. Preparation and properties of polypropylene reinforced by smectite. Journal of Materials Science. 1996;31(16):4307-4310. DOI: 10.1007/BF00356454
  41. 41. Zhang H, Zhang H-X, Yoon K-B. Synthesis of polyethylene/exfoliated MoS2 nanocomposites by in situ exfoliation polymerization using Ziegler-Natta catalyst intercalated MoS2. RSC Advances. 2017;7(82):52048-52052. DOI: 10.1039/C7RA10853B
  42. 42. Huang Y, Qin Y, Zhou Y, Niu H, Yu Z-Z, Dong J-Y. Polypropylene/graphene oxide nanocomposites prepared by In situ Ziegler-Natta polymerization. Chemistry of Materials. 2010;22(13):4096-4102. DOI: 10.1021/cm100998e
  43. 43. Aldosari AM, Othman AA, Alsharaeh HE. Synthesis and characterization of the in situ bulk polymerization of PMMA containing graphene sheets using microwave irradiation. Molecules. 2013;18(3):3152-3167. DOI: 10.3390/molecules18033152
  44. 44. Xu Z, Gao C. In situ polymerization approach to graphene-reinforced nylon-6 composites. Macromolecules. 2010;43(16):6716-6723. DOI: 10.1021/ma1009337
  45. 45. Wang X, Hu Y, Song L, Yang H, Xing W, Lu H. In situ polymerization of graphene nanosheets and polyurethane with enhanced mechanical and thermal properties. Journal of Materials Chemistry. 2011;21(12):4222-4227. DOI: 10.1039/C0JM03710A
  46. 46. Qiu Z, Guan W. In situ ring-opening polymerization of poly(l-lactide)-graft-graphene oxide and its effect on the crystallization kinetics and morphology of biodegradable poly(l-lactide) at low loadings. RSC Advances. 2014;4(19):9463-9470. DOI: 10.1039/C3RA46656F
  47. 47. Jing X, Mi H-Y, Salick MR, Cordie TM, Peng X-F, Turng L-S. Electrospinning thermoplastic polyurethane/graphene oxide scaffolds for small diameter vascular graft applications. Materials Science and Engineering: C. 2015;49:40-50. DOI: 10.1016/j.msec.2014.12.060
  48. 48. Bao Q, Zhang H, Yang J-x, Wang S, Tang DY, Jose R, et al. Graphene-polymer nanofiber membrane for ultrafast photonics. Advanced Functional Materials. 2010;20(5):782-791. DOI: 10.1002/adfm.200901658
  49. 49. Panzavolta S, Bracci B, Gualandi C, Focarete ML, Treossi E, Kouroupis-Agalou K, et al. Structural reinforcement and failure analysis in composite nanofibers of graphene oxide and gelatin. Carbon. 2014;78:566-577. DOI: 10.1016/j.colsurfa.2012.05.018
  50. 50. Pant HR, Park CH, Tijing LD, Amarjargal A, Lee D-H, Kim CS. Bimodal fiber diameter distributed graphene oxide/nylon-6 composite nanofibrous mats via electrospinning. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2012;407:121-125. DOI: 10.1016/j.colsurfa.2012.05.018
  51. 51. Wang Y, Tang J, Xie S, Liu J, Xin Z, Liu X, et al. Leveling graphene sheets through electrospinning and their conductivity. RSC Advances. 2015;5(52):42174-42177. DOI: 10.1039/C5RA01922B
  52. 52. Lee T, Min SH, Gu M, Jung YK, Lee W, Lee JU, et al. Layer-by-layer assembly for graphene-based multilayer nanocomposites: Synthesis and applications. Chemistry of Materials. 2015;27(11):3785-3796. DOI: 10.1021/acs.chemmater.5b00491
  53. 53. Yu C, Zhang J, Tian W, Fan X, Yao Y. Polymer composites based on hexagonal boron nitride and their application in thermally conductive composites. RSC Advances. 2018;8:21948-21967. DOI: 10.1021/acsami.5b03007
  54. 54. Yuan C, Duan B, Li L, Xie B, Huang M, Luo X. Thermal conductivity of polymer-based composites with magnetic aligned hexagonal boron nitride platelets. ACS Applied Materials and Interfaces. 2015;7(23):13000-13006. DOI: 10.1021/cm504550e
  55. 55. Shtein M, Nadiv R, Buzaglo M, Kahil K, Regev O. Thermally conductive graphene-polymer composites: Size, percolation, and synergy effects. Chemistry of Materials. 2015;27(6):2100-2106. DOI: 10.1021/cm504550e
  56. 56. Hu J, Huang Y, Yao Y, Pan G, Sun J, Zeng X, et al. Polymer composite with improved thermal conductivity by constructing a hierarchically ordered three-dimensional interconnected network of BN. ACS Applied Materials and Interfaces. 2017;9(15):13544-13553. DOI: 10.1021/acsami.7b02410
  57. 57. Guerra V, Wan C, McNally T. Thermal conductivity of 2D nano-structured boron nitride (BN) and its composites with polymers. Progress in Materials Science. 2019;100:170-186. DOI: 10.1021/jp0607014
  58. 58. Takahashi S, Imai Y, Kan A, Hotta Y, Ogawa H. Dielectric and thermal properties of isotactic polypropylene/hexagonal boron nitride composites for high-frequency applications. Journal of Alloys and Compounds. 2014;615:141-145. DOI: 10.1016/j.jallcom.2014.06.13
  59. 59. Zhang X, Shen L, Wu H, Guo S. Enhanced thermally conductivity and mechanical properties of polyethylene (PE)/boron nitride (BN) composites through multistage stretching extrusion. Composites Science and Technology. 2013;89:24-28. DOI: 10.1016/j.compscitech.2013.09.017
  60. 60. Zhou W, Qi S, Li H, Shao S. Study on insulating thermal conductive BN/HDPE composites. Thermochimica Acta. 2007;452(1):36-42. DOI: 10.1016/j.tca.2006.10.018
  61. 61. Shin YK, Lee WS, Yoo MJ, Kim ES. Effect of BN filler on thermal properties of HDPE matrix composites. Ceramics International. 2013;39:S569-SS73. DOI: 10.1016/j.ceramint.2012.10.137
  62. 62. Muratov DS, Kuznetsov DV, Il’inykh IA, Mazov IN, Stepashkin AA, Tcherdyntsev VV. Thermal conductivity of polypropylene filled with inorganic particles. Journal of Alloys and Compounds. 2014;586:S451-S4S4. DOI: 10.1016/j.jallcom.2012.11.142
  63. 63. Kim K, Ju H, Kim J. Filler orientation of boron nitride composite via external electric field for thermal conductivity enhancement. Ceramics International. 2016;42(7):8657-8663. DOI: 10.1016/j.ceramint.2016.02.098
  64. 64. Kemaloglu S, Ozkoc G, Aytac A. Thermally conductive boron nitride/SEBS/EVA ternary composites: “Processing and characterization”. Polymer Composites. 2010;31(8):1398-1408. DOI: 10.1002/pc.20925
  65. 65. Cheewawuttipong W, Fuoka D, Tanoue S, Uematsu H, Iemoto Y. Thermal and mechanical properties of polypropylene/boron nitride composites. Energy Procedia. 2013;34:808-817. DOI: 10.1016/j.egypr.2013.06.817
  66. 66. Hou J, Li G, Yang N, Qin L, Grami ME, Zhang Q, et al. Preparation and characterization of surface modified boron nitride epoxy composites with enhanced thermal conductivity. RSC Advances. 2014;4:44282-44290. DOI: 10.1021/cm504550e
  67. 67. Xu Y, Chung DDL. Increasing the thermal conductivity of boron nitride and aluminum nitride particle epoxy-matrix composites by particle surface treatments. Composite Interfaces. 2000;7:243-256. DOI: 10.1163/156855400750244969
  68. 68. Siddiqui GU, Rehman MM, Yang Y-J, Choi KH. A two-dimensional hexagonal boron nitride/polymer nanocomposite for flexible resistive switching devices. Journal of Materials Chemistry C. 2017;5:862-871. DOI: 10.1039/C6TC04345C
  69. 69. Yu C, Gong W, Tian W, Zhang Q, Xu Y, Lin Z, et al. Hot-pressing induced alignment of boron nitride in polyurethane for composite films with thermal conductivity over 50 Wm−1K−1. Composites Science and Technology. 2018;160:199-207. DOI: 10.1016/j.compscitech.2018.03.028
  70. 70. Wenelska K, Maślana K, Mijowska E. Study on the flammability, thermal stability and diffusivity of polyethylene nanocomposites containing few layered tungsten disulfide (WS2) functionalized with metal oxides. RSC Advances. 2018;8:12999-13007. DOI: 10.1039/C8RA01527A
  71. 71. Liu D, He L, Lei W, Klika KD, Kong L, Chen Y. Multifunctional polymer/porous boron nitride nanosheet membranes for superior trapping emulsified oils and organic molecules. Advanced Materials Interfaces. 2015;2(12):1500228. DOI: 10.1002/admi.201500228
  72. 72. Moradi R, Shariaty-Niassar M, Pourkhalili N, Mehrizadeh M, Niknafs H. PVDF/h-BN hybrid membranes and their application in desalination through AGMD. Membrane Water Treatment. 2018;9:221-231. DOI: 10.12989/mwt.2018.9.4.221
  73. 73. Kamble AR, Patel CM, Murthy ZVP. Modification of PVDF membrane by two-dimensional inorganic additive for improving gas permeation. Separation Science and Technology. 2018:1-18. DOI: 10.1080/01496395.2018.1496118
  74. 74. Harrison C, Burgett E, Hertel N, Grulke E. Polyethyleneboron composites for radiation shielding applications. American Institute of Physics. 2008;969:484-491. DOI: 10.1063/1.2845006
  75. 75. Harrison C, Weaver S, Bertelsen C, Burgett E, Hertel N, Grulke E. Polyethylene/boron nitride composites for space radiation shielding. Journal of Applied Polymer Science. 2008;109:2529-2538. DOI: 10.1002/app.27949
  76. 76. Lu F, Wang F, Cao L, Kong CY, Huang X-C. Hexagonal boron nitride nanomaterials: Advances towards bioapplications. Nanoscience and Nanotechnology Letters. 2012;4:949-961. DOI: 10.1166/nnl.2012.1444
  77. 77. Chan WK, Wong MH, Yeung WK, Tjong CS. Polypropylene biocomposites with boron nitride and nanohydroxyapatite reinforcements. Materials. 2015;8(3):992-1008. DOI: 10.3390/ma8030992
  78. 78. Liu T, Wang C, Gu X, Gong H, Cheng L, Shi X, et al. Drug delivery with PEGylated MoS2 nano-sheets for combined photothermal and chemotherapy of cancer. Advanced Materials. 2014;26(21):3433-3440. DOI: 10.1002/adma.201305256
  79. 79. Cheng L, Liu J, Gu X, Gong H, Shi X, Liu T, et al. PEGylated WS2 nanosheets as a multifunctional theranostic agent for in vivo dual-modal CT/photoacoustic imaging guided photothermal therapy. Advanced Materials. 2014;26(12):1886-1893. DOI: 10.1002/adma.201304497
  80. 80. Zhu C, Zeng Z, Li H, Li F, Fan C, Zhang H. Single-layer MoS2-based nanoprobes for homogeneous detection of biomolecules. Journal of the American Chemical Society. 2013;135(16):5998-6001. DOI: 10.1021/ja4019572
  81. 81. Nguyen H-L, Hanif Z, Park S-A, Choi BG, Tran TH, Hwang DS, et al. Sustainable boron nitride nanosheet-reinforced cellulose nanofiber composite film with oxygen barrier without the cost of color and cytotoxicity. Polymers. 2018;10:501-516. DOI: 10.3390/polym10050501

Written By

Zahra Rafiei-Sarmazdeh and Seyed Javad Ahmadi

Submitted: December 15th, 2018 Reviewed: February 27th, 2019 Published: June 19th, 2019