纳米氮化硅/三元乙丙橡胶复合材料的制备与性能  

Preparation and properties of nano-silicon nitride/ethylene-propylene-diene monomer composites

作　　者：方胜阳[1] 李方山[2] 章于川[1] 严江威 陈晋阳[3] 张军[3] 郑海波[3] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230039 [2]安徽安大中鼎橡胶技术开发有限公司,安徽合肥230088 [3]安徽宁国中鼎密封件有限公司,安徽宁国242300

出　　处：《合成橡胶工业》2010年第1期60-63,共4页China Synthetic Rubber Industry

基　　金：国家科技攻关计划资助项目(2005BA316C);安徽省科技攻关计划资助项目(06012033A)

摘　　要：用甲基丙烯酸锌原位聚合改性纳米氮化硅,再将改性纳米氮化硅填充到三元乙丙橡胶中以制备纳米橡胶复合材料,研究了复合材料的基本力学性能、耐热老化性能、耐油性能和耐磨性能等。结果表明,添加改性的纳米氮化硅在一定程度上提高了三元乙丙橡胶的撕裂强度、扯断伸长率和拉伸强度,邵尔A硬度也小幅上升。当改性纳米氮化硅的添加量为1.0份(质量)时,纳米氮化硅/三元乙丙橡胶复合材料的耐热老化性能和耐油性能有一定程度的提高,其综合性能也达到最佳。用甲基丙烯酸锌原位聚合改性可以改善纳米氮化硅与三元乙丙橡胶基质间的界面作用,提高其在三元乙丙橡胶中的分散效果。Based on nano-silicon nitride modified with self-made zinc dimethacrylate by in-situ polymerization, nano-silicon nitride/ethylene-propylenediene monomer（EPDM） composites were prepared. The mechanical properties, the hot air aging property, the oil resistance and the abrasion resistance of thenano-composites were investigated. The results indicated that adding modified nano-silicon nitride could improved EPDM in tear strength, elongation at break and tensile strength to a certain extent and Shore A hardness a little. As modified nano-silicon nitride of 1.0 phr was added, the composites was improved in hot air aging property, the oil resistance to some extent, and its comprehensive property was the best.

关 键 词：三元乙丙橡胶 甲基丙烯酸锌 纳米氮化硅 复合材料 表面改性 力学性能 

分 类 号：TQ333.4[化学工程—橡胶工业]