EVA/纳米TiO_2复合体系的制备工艺对力学性能及分散状态的影响  

Effect of processing on mechanical properties and dispersion morphology of EVA/nano-TiO_2 composite

作　　者：李红姬[1] 张万喜[1] 迟剑锋[1] 梁波[1] 陈广义[1] 

机构地区：[1]吉林大学汽车材料教育部重点实验室材料科学与工程学院,吉林长春130025

出　　处：《功能材料》2006年第2期295-297,300,共4页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2003AA302310)

摘　　要：详细研究了乙烯-醋酸乙烯酯共聚物(EVA)和纳米氧化钛(nano-TiO2)复合体系的制备工艺对力学性能、分散状态的影响。研究表明,如果把乙烯基三乙氧基硅烷(硅烷偶联剂)作为一个组分,直接与基体EVA及分散相纳米TiO2进行混合,更有利于纳米粒子在基体中的分散。在该复合体系中,纳米TiO2与乙烯基三乙氧基硅烷达到了协同增韧EVA的目的,同时,纳米TiO2具有补强作用,当复合体系的组成为EVA/纳米TiO2=95∶5时,对EVA的改性效果最佳。The effect of the processing on the mechanical properties and dispersion morphology of the ethylene-vinyl acetate （EVA）/nano-TiO2 composites was studied in detail. It was found that if vinyltriethoxysilane was mixed directly with the EVA matrix and the dispersed-phase nano-TiO2 as a constituent, the nano-particles dispersed in the matrix easier. In the compound system, a good cooperation effect of nano-TiO2 and vinyltriethox-ysilane on the toughness of EVA were obtained, and the nano-TiO2 also improved the strength. When the proportion of EVA to nano-TiO2 is 95 ： 5, the modify effect to EVA was optimal.

关 键 词：EVA 纳米TIO2 制备工艺 力学性能 分散状态 

分 类 号：TB332[一般工业技术—材料科学与工程]