PVAc/SiO_2纳米复合乳液的性能研究  

Investigation on properties of PVAc/SiO_2 nanocomposites

作　　者：徐宏斌[1] 胡宏玖[2] 李达开[1] 李洁[1] 汤傲杰[1] 

机构地区：[1]上海市应用数学和力学研究所,上海200072 [2]上海大学,上海200072

出　　处：《粘接》2008年第10期1-4,共4页Adhesion

基　　金：国家自然科学基金(10672095);上海市重点学科建设(Y0103)资助课题。

摘　　要：采用原位乳液聚合法制备了PVAc/纳米SiO2复合乳液,研究了纳米粒子对PVAc粘接强度和耐水性能的影响,并基于纳米压痕试验,分析了PVAc/纳米SiO2复合乳液的力学性能。研究表明,适量的纳米SiO2能显著改善PVAc胶层的粘接强度和耐水性能,并能明显提高PVAc薄膜的弹性模量、硬度及抗蠕变能力。Poly （ vinyl acetate） （PVAc）/nano-silica （ SiO2 ） composite emulsion was prepared by in-situ emulsion polymerization. The effects of nanoparticle on bonding strength and water resistance of PVAc were investigated. Based on nano-scale indentation tests,the mechanical properties of PVAc/sio2 composite were analysed. It was showed that correct loadings of nano-silica can remarkably improve bonding strength and water resistance of PVAc adhesive layer, and increase elastic modulus, hardness and creep resistance of PVAc film.

关 键 词：纳米二氧化硅 聚醋酸乙烯乳液 复合材料 力学性能 耐水性能 

分 类 号：TQ331.491[化学工程—橡胶工业]