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19  Weng WG, Chen GH, Wu DJ. Transport Properties of Electrically Conducting Nylon 6/foliated Graphite Nanocomposites. Polymer 46 (16): 6250-6257(2005) 

18  Chen GH, Lu JR, Wu DJ. PTC Effect of Polyethylene/foliated Graphite Nanocomposites. J.Mater. Sci 40 (18): 5041-5043 (2005)

17  Chen GH, Lu JR, Lu W, et al. Time-dependence of Piezo-resistive Behavior for Polyethylene/foliated Graphite Nanocomposites. Polymer International 54 (12):1689-1693 (2005)