乙烯基含量对开孔硅橡胶泡沫材料性能的影响

陈宏　 胡文军　 陈晓丽　 陈勇梅　

摘　要：研究了乙烯基硅橡胶中的乙烯基含量对开孔硅橡胶泡沫材料物理性能的影响。结果表明：随着乙烯基含量的增大，硅橡胶泡沫材料的密度逐渐降低；在相同应变下，各种硅橡胶泡沫材料的压缩应力在低应变时相近，高应变时随乙烯基含量的增大而下降；开孔硅橡胶泡沫材料的拉伸强度和扯断伸长率随乙烯基含量的增大而下降。
关键词：硅橡胶；溶析成孔技术；开孔泡沫材料；乙烯基含量
分类号：TQ339.93　文献标识码：B
文章编号：1000-890X(2000)08-0460-04

Effect of vinyl content on properties of open cell silicone rubber foam material

CHEN Hong ,HU Wen-jun ,CHEN Xiao-li ,CHEN Yong-mei
(Institute of Structure Mechanics, CAEP, Mianyang 621900,China)

Abstract：The influence of the vinyl content in methyl vinylsilicone rubber(MVQ) on the physical properties of open cell MVQ foam material was investigated. The results showed that the apparent densities of MVQ foam materials decreased as their vinyl contents increased; the compression stresses of various MVQ foam materials were close to each other at low strains and decreased at high strains with vinyl content increasing;and the tensile strength and elongation at break of open cell MVQ foam materials decreased as the vinyl content increased.
Keywords：MVQ;open cell foam;vinyl content