文献类型：期刊文献

英文题名：Influence of In-situ Grafting on the Dispersion of Carbon Black in Solvents and Natural Rubber

作者：Xu, Haiyan[1];Cao, Yuanyi[1];He, Xuelian[1];Wu, Yunfeng[1];Zhang, Yunmin[1];Wu, Chifei[1]

机构：[1]E China Univ Sci & Technol, Polymer Alloy Lab, Sch Mat Sci & Technol, Shanghai 200237, Peoples R China

年份：2009

卷号：48

期号：6

起止页码：1190

外文期刊名：JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS

收录：;EI(收录号：20100212620071);WOS:【SCI-EXPANDED(收录号:WOS:000272301600009)】；

语种：英文

外文关键词：carbon black; dispersion; dispersion stability; grafting

摘要：In-situ grafting of natural rubber (NR) onto the carbon black (CB) surface by a solid-state method was used to obtain grafted carbon black (GCB). The morphology of the original CB and GCB particles was observed by AFM and TEM. The original CB particles fused together and occurred as large dendritic agglomerates while the GCB particles occurred as small aggregates about 150 nm in diameter. The dispersion and dispersion stability of CB and GCB in toluene and cyclohexene were studied by zeta potential and a spectrophotometer. The results showed that the grafting procedure can improve both dispersion and dispersion stability of CB particles. The dispersion in NR was studied by DMA and observed by SEM. It was shown that GCB has better dispersion than CB in a NR matrix. As expected a weakened filler-filler interaction and enhanced filler-polymer interaction occurred after grafting modification.