作　　者： ; ; ; ; ;

机构地区： 河南大学

出　　处： 《高分子材料科学与工程》 2009年第6期125-127,共3页

摘　　要： 采用一种可以与氯乙烯(VC)发生共聚反应的可反应性纳米SiO2,通过原位悬浮聚合的方法制备了PVC/SiO2纳米复合材料。通过TGA、XPS分析,说明可反应性的纳米SiO2与PVC之间存在强烈的化学作用;考察了该纳米复合材料的微观形貌、力学性能,结果发现纳米SiO2在PVC基体中分散良好,含量为0.3%时,材料的拉伸强度、杨氏模量和断裂伸长率有最佳值,提出了纳米SiO2与PVC相互作用的机理。 Using the reactive nano-SiO2, which can participate in the polymerization reaction of VC monomer, the PVC/SiO2 nanocomposites was prepared by in-situ suspension polymerization. Through the analysis of TG and XPS technology, it proved that Strong chemistry bond forms between PVC and the reactive nano-SiO2. We also investigated the microstructure morphology and mechanical performance of the PVC nanocomposites. It is found that nano-SiO2 has good dispersion in PVC, tensile fracture of PVC nanocomposites is filiform. When the content of nano- SiO2 is 0.3 %, tensile strength, Young＇s modulus and elongation at break have optimal value. Interactive mechanism between PVC and nano-SiO2 was proposed finally.

关 键 词： 聚氯乙烯 可反应性纳米二氧化硅 原位聚合 界面 性能

领　　域： [一般工业技术]