Conductive thermoplastic vulcanizates based on carbon black-filled bromo-isobutylene-isoprene rubber (BIIR)/polypropylene (PP)

Reviews on Advanced Materials Science

Liu Zhi¹  Hong Ruoyu¹  Huang Yunyun¹  Xu Hongyan² 

[1] College of Chemical Engineering, Fuzhou University, Fuzhou350108, China;Suzhou Tewei Plastic Co., Ltd. of China Guangdong Nuclear Power Delta Group, Suzhou215151, China;

关键词: cb;    pp/biir;    tpv;    electrical properties;    emi;   

DOI  :  10.1515/rams-2021-0013

来源: DOAJ

【 摘 要 】

Conductive elastomer materials based on carbon black (CB) filled bromo-isobutylene-isoprene rubber (BIIR)/polypropylene (PP) thermoplastic vulcanizate (TPV) were prepared by two step method and one step method. The microstructure, mechanical properties, electrical resistivity, thermal stability, electromagnetic interference shielding performance, and fracture surface morphology of composite materials were studied. The result shows the serious aggregation of CB in one-step TPV, but the uniform dispersion of CB in two-step TPV. In addition, the two-step TPV shows a higher electromagnetic interference (EMI) shielding performance and lower conductivity penetration threshold. The penetration threshold of the two-step TPV is 9.1%, and the maximum reflection loss of the two-step TPV16 is −29.5 dB. Therefore, this research offers an uncomplicated and scalable melt mixing approach method to manufacture conductive thermoplastic vulcanizates with excellent EMI shielding.

【 授权许可】

Unknown