Conductivity polymer/graphite nanocomposites

Kim, I. H., and Jeong, Y G. (2010], Polylactide/exfoliated graphite nanocomposites with enhanced thermal stability, mechanical modulus, and electrical conductivity. J. Polym. Sci. Polym. Phys., 8, pp. 850-858. 

Chen G H, Weng W G, Wu D J and Wu C L (2004) Nonlinear conduction in nylon-6/foliated graphite nanocomposites above the percolation threshold, J Polym Sci Part B Polym Phys 42 155-167. 

Shen et al. [75] measured the electrical conductivity of polyethylene/maleic anhydride-grafted polyethylene/graphite nanocomposites. Electrical conductivity and morphology were influenced by the polymer preparation method and could be explained in terms of percolation theory. 

Chen GH, Wu DJ, Weng WG, Yan WL (2001) Preparation of polymer/graphite ctmducting nanocomposite by intercalation polymerization. J Appl Polym Sci 82 2506 Chen XM, Shen JW, Huang WY (2002) Novel electrically conductive polypropylene/graphene nanocomposites. J Mater Sci Lett 21 213... 

Pan, YX., Yu, Z., Ou, Y, and Hu, G, (2000) A new process of fabricating electrically conducting nylon 6/graphite nanocomposites via intercalation polymerization. Journal of Polymer Science Part B Polymer Physics, 38,1626-1633. 

Effective medium theory (EMT) is commonly used to describe the microstructure-property relationships in heterogeneous materials and predict the effective physical properties. It has recently been revised to predict the thermal conduction of nanocomposites. For nanocomposites with nanopartides on the order of or smaller than the phonon mean free path, the interface density of nanopartides is a primary factor in determining the thermal conductivity. In graphite nanosheet polymer composites, the interfacial thermal resistance still plays a role in the overall thermal transport. However, the thermal conductivity depends strongly on the aspect ratio and on the orientation of graphite nanosheets. 

Causin, V., Marega, C Marigo, A., Ferrara, G., and Ferraro, A. (2006) Morphological and structural characterization of polypropylene/conductive graphite nanocomposites. European Polymer Journal, 42, 3153-3161. 

Du X S, Xiao M, Meng Y Z, Hay A S (2004), Facile synthesis of exfoliated and highly conductive poly(aiylene disulfide)/graphite nanocomposites , Polymers for Advanced Technologies, 15(6), 320-323. 

Carbon materials provide electrical conduction through the pi bonding system that exists between adjacent carbon atoms in the graphite structure [182]. Electrical properties of nanocomposites based on conducting nanofillers such as EG [183-187], CNTs [188-190], and CNFs [191], dispersed in insulating polymer matrix have found widespread applications in industrial sectors. 

Graphene-polymer nanocomposites share with other nanocomposites the characteristic of remarkable improvements in properties and percolation thresholds at very low filler contents. Although the majority of research has focused on polymer nanocomposites based on layered materials of natural origin, such as an MMT type of layered silicate compounds or synthetic clay (layered double hydroxide), the electrical and thermal conductivity of clay minerals are quite poor [177]. To overcome these shortcomings, carbon-based nanofillers, such as CB, carbon nanotubes, carbon nanofibers, and graphite have been introduced to the preparation of polymer nanocomposites. Among these, carbon nanotubes have proven to be very effective as conductive fillers. An important drawback of them as nanofillers is their high production costs, which... 

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