摘要
采用机械共混法制备了硅橡胶/氯化聚乙烯共混体系。研究了氯化聚乙烯用量对共混体系力学性能、热稳定性、阻尼性能和相态结构的影响。结果表明:随氯化聚乙烯用量的增加,共混体系的力学性能和热稳定性出现降低的现象,但阻尼性能和材料之间的相容性有明显提高。当氯化聚乙烯用量为100份时,与纯硅橡胶相比,共混体系的有效阻尼温域从15℃拓宽到近50℃,最大损耗因子从0.11提高到0.43,玻璃化转变温度向高温偏移了30℃左右;硅橡胶和氯化聚乙烯也呈现出较好的相容性。
Blends of silicone rubber and chlorinated polyethylene were prepared via mechanical blending. The influence of chlorinated polyethylene content on mechanical property, thermal stability, damping property, and morphology of the blends was investigated. It was found that, with increasing content of chlorinated polyethylene, the mechanical property and thermal stability decreased, but the damping property and compatibility increased obviously. When the dosage of chlorinated polyethylene was 100 phr, compared with neat silicone rubber, the effective damping temperature range of the blends was broadened from 15 ℃ to 50 ℃, the maximum loss factor was increased from 0. 11 to 0. 43, the glass transition temperature increased by 30℃. The compatibility of silicone rubber and chlorinated polyethylene was good.
出处
《中国塑料》
CAS
CSCD
北大核心
2010年第1期28-32,共5页
China Plastics
基金
中国工程物理研究院科学技术发展基金重点资助项目(2008A0302011)
关键词
硅橡胶
氯化聚乙烯
共混
阻尼温域
相态结构
silicone rubber
chlorinated polyethylene
blending
damping temperature range
morphology
