文献类型：期刊文献

英文题名：Morphology and electrical conductivity of injection-molded polypropylene/carbon black composites with addition of high-density polyethylene

作者：Yui, Hiroshi[1]; Wu, Guozhang[1,2]; Sano, Hironari[3]; Sumita, Masao[4]; Kino, Kuniki[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Waseda Univ, Adv Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1690072, Japan;[3]Mitsubishi Chem Corp, Sci & Technol Res Ctr, Yokaichi, Mie 5108530, Japan;[4]Tokyo Inst Technol, Dept Chem & Mat Sci, Meguro Ku, Tokyo 1528552, Japan

年份：2006

卷号：47

期号：10

起止页码：3599

外文期刊名：POLYMER

收录：;EI(收录号：2006189860149);WOS:【SCI-EXPANDED(收录号:WOS:000237859400036)】；

语种：英文

外文关键词：carbon black; injection molding; conductive polymer composite

摘要：This work attempts to clarify the influence of carbon black (CB) addition on the microstructure of injection-molded high-density polyethylene (HDPE)/polypropylone (PP) blends and effect of shear-induced polymer deformation on the conductive network structure. We observed that HDPE molecules are strongly interacted with carbon surfaces and CB particles are selectively located in HDPE domains. Morphology of the injection-molded specimen consists of three parts, namely, CB-HDPE complex domain, free HDPE domain and PP domain. The volume and microstructure of the free HDPE domain are significantly influenced by HDPE and CB concentration, CB structure, and PP viscosity. We also confirmed that the CB particles are capable of self-assembly to form random conductive networks even under high shear rate within very short time. The morphological changes were finally correlated to the variation of electrical conductivity. (c) 2006 Elsevier Ltd. All rights reserved.