Preparation and Properties of Thermoplastic Elastomer/Ethylene-Vinyl Acetate Copolymer/Carbon Nanotube Double-Percolation Conductive Composite

被引：0
|
作者：
Wang Q. [1 ]
Dong R. [1 ]
Ji X. [1 ]
Shen J. [1 ]
Guo S. [1 ]
机构：
[1] Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2019年 / 35卷 / 05期
关键词：
Carbon nanotube; Conductive polymer composites; Double percolation; Ethylene-vinyl acetate copolymer; Thermoplastic polyurethane;
D O I：
10.16865/j.cnki.1000-7555.2019.0139
中图分类号：
学科分类号：
摘要：
Thermoplastic polyurethane (TPU)/ethylene-vinyl acetate copolymer (EVA)/carbon nanotube (CNT) conductive composites were fabricated through melt blending. The influence of addition method, composition ratio and CNT content on the electrical and mechanical properties of the composites was investigated. The results show that CNT is selectivity distributed in the TPU phase, and the electrical conductivity of the composites first increase and then decrease with increasing EVA contents. When TPU is first blended with CNT and then blended with EVA, double-percolation conducting networks could be generated at the TPU/EVA mass ratio of 45/55. At the same time, the percolation threshold of TPU/CNT-EVA composite is only 1.42% by mass, which is 25% and 52% lower than TPU/CNT and EVA/CNT. With the increase of CNT contents, the mechanical properties gradually become worsen. © 2019, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：104 / 109
页数：5
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