二氧化硅杂化改性氯化聚乙烯橡胶的制备与性能  

Preparation and properties of silicon dioxide hybrid modified chlorinated polyethylene elastomer

作　　者：吴凡[1] 吴新民[1] 宋永海 王松[1] 怀乐 宋秋生[1] 

机构地区：[1]合肥工业大学化学与化工学院,合肥230009 [2]芜湖融汇化工有限公司,安徽芜湖241022

出　　处：《合成橡胶工业》2017年第4期267-270,共4页China Synthetic Rubber Industry

基　　金：芜湖市重大科技攻关计划资助项目(2012 zd 16)

摘　　要：以γ-氨丙基三乙氧基硅烷和正硅酸乙酯作为二氧化硅的前驱体,利用二者在氯化聚乙烯橡胶(CM)颗粒中的溶胶-凝胶反应制备了不同组成的二氧化硅杂化改性CM,利用傅里叶变换红外光谱、X射线能谱仪及扫描电子显微镜分析了其化学结构和微观形貌,并测试了其耐热和拉伸性能。结果表明,二氧化硅与CM的杂化主要发生在聚合物粒子表面;热失重分析结果表明杂化后CM的耐热性能得到明显提高;杂化还有助于改善CM的拉伸性能。Using T-aminopropyltriethoxysilane （ KH 550） and tetraethylorthosilicate （TEOS） as precursors of SiO2, SiO2 modified chlorinated polyethylene elastomer （CM） hybrid materials with different composition were prepared via sol-gel reaction of KH 550 and TEOS in CM particles. The chemical structure and micromorphology of the modified CM were characterized by Fourier transform infrared spectroscopy, X-ray energy spectrometer and scan- ning electron microscopy, and their heat resistance and tensile properties were also investigated. The results showed that CM mainly occurred hybridization between SiO2 and on the surface of polymer parti- cles. The results of thermogravimetric analysis demonstrated that the heat resistance of CM improved significantly after hybridization. Meanwhile, the hybridization was helpful to improve tensile properties of CM.

关 键 词：氯化聚乙烯橡胶 二氧化硅 Γ-氨丙基三乙氧基硅烷 杂化 耐热性能 拉伸性能 

分 类 号：TQ333.92[化学工程—橡胶工业]