Electrically conductive graphene-filled polymer composites with well organized three-dimensional microstructure
文献类型： 外文期刊
作者： Zhao, Pengfei 1 ; Luo, Yongyue 2 ; Yang, Junlong 1 ; He, Dongning 2 ; Kong, Lingxue 3 ; Zheng, Peng 2 ; Yang, Qi 1 ;
作者机构： 1.Sichuan Univ, State Key Lab Polymer Mat Engn, Coll Polymer Sci & Engn, Chengdu 610065, Peoples R China
2.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Chinese Agr Minist Key Lab Trop Crop Prod Proc, Zhanjiang 524001, Peoples R China
3.Deakin Univ, Inst Frontier Mat, Waurn Ponds, Vic 3216, Australia
关键词： Electrical property;Craphene;Polymers;Nanocomposites;Three-dimensional microstructure
期刊名称：MATERIALS LETTERS （ 影响因子：3.423； 五年影响因子：3.003 ）
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收录情况： SCI
摘要： Electrically conductive graphene-filled polystyrene nanocomposites with well-organized three dimensional (3D) microstructures were simply prepared by electrostatic assembly integrated latex technology. First, positively charged polystyrene was synthesized via disperse polymerization in ethanol/water medium by using a cationic co-monomer, and then directly co-assembled with graphene oxide. Eventually, a honeycomb-like graphene 3D framework was embedded in polystyrene matrix after in situ chemical reduction and hot compression molding. Due to the 3D conductive pathway derived from graphene based network evidenced by morphology studies, the fabricated nanocomposites show excellent electrical properties, i.e. extremely low percolation threshold of 0.09 vol% and high saturated conductivity of 25.2 S/m at GNs content of 1.22 vol%.
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