Polytetrafluoroethylene (PTFE) was used as the matrix,aramid fiber(AF) was treated by radiation as the reinforcing agent,and the PTFE/AF composite were prepared by molding and high temperature sintering.The effects of AF content,forming pressure,holding time,sintering temperature and holding time on the properties of the composite were studied.The results shown that when AF content was 15%,not only the AF was evenly dispersed in the composite,but also the mechanical properties of the composite were excellent.The suitable preparation process of the composite was that molding pressure 80MPa,pressure holding time 10mins,sintering temperature 385℃,holding time 300mins.
Liu Shubo, Wang Zijun, Zhang Hongna, Yang Mingcheng, Zhang Benshang, Zhang Zhenya
. Study on the preparation technology of PTFE/AF composite[J]. New Chemical Materials, 2020
, 48(12)
: 48
-51
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.12.012
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