橡胶技术网

合成橡胶工业
CHINA SYNTHETIC RUBBER INDUSTRY
2010 Vol.33 No.2 P.150-153

 橡胶技术网

顺丁橡胶对硅橡胶/丙烯酸酯橡胶并用胶的增容作用

武卫莉　

摘　要：采用偏光显微镜、差示扫描量热仪以及力学性能、热老化性能测试手段,研究了顺丁橡胶(BR)增容的甲基乙烯基硅橡胶(MVQ)/丙烯酸酯橡胶(ACM)共混体系的并用比(质量比)、硫化工艺参数以及BR的加入对并用胶力学性能、耐热老化性能和相容性的影响.结果表明,BR的加入改善了MVQ/ACM并用胶的力学性能和耐热老化性能,当白炭黑用量为30份、BR/MVQ/ACM的并用比为25/45/55时,并用胶的力学性能和耐热老化性能最好;最佳硫化工艺参数为70 ℃×10 MPa×30 min;加入BR可以改善MVQ/ACM并用胶的相容性,且使其玻璃化转变温度降低,耐低温性能提高.
关键词：顺丁橡胶;丙烯酸酯橡胶;甲基乙烯基硅橡胶;并用;相容性;力学性能;耐热老化性能
分类号：TQ333.2　文献标识码：B
文章编号：1000-1255(2010)02-0150-04

Compatibilization of cis-1,4-polybutadiene on methyl vinyl silicone rubber/acrylate rubber blends

Wu Weili（College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China）　

Abstract：By means of polarized light microscopy, differential scanning calorimetry, and mechanical properties, thermal properties testing, the effects of mass ratio, cure parameters and addition of cis-1,4-polybutadiene (BR) on mechanical properties, heat aging resistance and compatibility of methyl vinyl silicone rubber/acrylate rubber(MVQ/ACM) blends were investigated. The results showed that the mechanical properties and heat aging resistance of MVQ/ACM blends were improved when BR was added. When silica was 30 phr and BR/ACM/MVQ(mass ratio) was 25/55/45, the mechanical properties and heat aging resistance of the blends were best. The optimum cure parameters were 170 ℃×10 MPa×30 min. The addition of BR in MVQ/ACM blends made the compatibility improved, glass transition temperature decreased, and low-temperature resistance improved.
Keywords：cis-1,4-polybutadiene; acrylate rubber; methyl vinyl silicone rubber; blend; compatibility; mechanical property; heat aging resistance

基金项目：黑龙江省科技攻关资助项目(GC 04 A 408-1).
作者简介：武卫莉(1961-),女,博士,硕士研究生导师,教授.已发表论文70余篇.
作者单位：武卫莉（齐齐哈尔大学,化工与化学工程学院,黑龙江,齐齐哈尔161006）　

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收稿日期：2009年3月19日

修稿日期：2009年12月9日

出版日期：2010年3月15日