摘要
采用机械共混法制备了硅橡胶/丁基橡胶共混体系。研究了丁基橡胶用量对共混体系力学性能、热稳定性和阻尼性能的影响。结果表明,随着丁基橡胶用量的增加,共混体系的力学性能和热稳定性出现降低的现象,但阻尼性能有显著提高。当丁基橡胶用量为100份时,与纯硅橡胶相比,共混体系的有效阻尼温域从0℃拓宽到近75℃,最大损耗因子从0.11提高到0.80,玻璃化转变温度向高温偏移了8℃左右。
Blends of siloxane and butyl rubbers were prepared via mechanical blending. The influence of butyl rubber content on the mechanical property, thermal stability, and damping properties of the blends were investigated. It was found that, with increasing content of butyl rubber, the mechanical property and thermal stability decreased, but the damping properties increased obviously. When the dosage of butyl rubber were 100 phr, the effective damping temperature range （tan δ〉0. 3） of the blends was broadened from 0℃ to 75 ℃, the maximum loss factor was increased from 0. 11 to 0. 80, and the glass transition temperature increased by 8 ℃, compared with neat silicone rubber.
出处
《中国塑料》
CAS
CSCD
北大核心
2009年第9期36-39,共4页
China Plastics
基金
中国工程物理研究院科学技术发展基金重点项目(2008A0302011)
关键词
硅橡胶
丁基橡胶
共混
损耗因子
阻尼温域
silicone rubber
butyl rubber
blending
loss factor
damping temperature range
