文献类型：期刊文献

英文题名：The Entangled Conductive Structure of CB/PA6/PP MFCs and Their Electromechanical Properties

作者：Wang, Yu[1];Liu, Song[1];Zhu, Huihao[1];Ji, Huajian[1];Li, Guo[1];Wan, Zhou[1];Ma, Yulu[1];Xie, Linsheng[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2021

卷号：13

期号：6

外文期刊名：POLYMERS

收录：;EI(收录号：20211310139276);WOS:【SCI-EXPANDED(收录号:WOS:000651954100001)】；

基金：This research was funded by the National Natural Science Foundation of China (number 51273065).

语种：英文

外文关键词：microfibrillar composites (MFCs); conductive structure; electromechanical property; sensing

摘要：In this work, carbon black (CB)/polyamide 6 (PA6)/polypropylene (PP) microfibrillar composites (MFCs) were fabricated through an extrusion (hot stretching) heat treatment process. The CB-coated conductive PA6 microfibrils with high aspect ratio were in situ generated as a result of the selective accumulation of CB at the interface. At the proper temperature, a 3D entangled conductive structure was constructed in the PP matrix, due to topological entanglement between these conductive microfibrils. This unique conductive structure provided the PP composites with a low electrical conductivity percolation threshold. Moreover, the electromechanical properties of conductive MFCs were investigated for the first time. A great stability, a high sensitivity and a nice reproducibility were achieved simultaneously for CB/PA6/PP MFCs. This work provides a universal and low-cost method for the conductive polymer composites' (CPCs) fabrication as sensing materials.