改性纳米SiO_2/丙烯酸酯复合涂料的性能  

The Properties of Modified Nano-SiO_2/Acrylics Composite Coating

作　　者：李燕杰[1] 胡晓兰[1] 申丙星[1] 杨雪慧[1] 陈丹梅[1] 董炎明[1] 

机构地区：[1]厦门大学材料学院,福建厦门361005

出　　处：《厦门大学学报（自然科学版）》2008年第5期696-700,共5页Journal of Xiamen University：Natural Science

基　　金：厦门市科技计划项目(3502Z20063004)资助

摘　　要：丙烯酸酯是一类广泛应用的涂料品种,本文通过对纳米SiO2进行表面改性,利用共混法制备了一种纳米SiO2改性的丙烯酸酯复合涂料,然后实验考察了复合涂料的耐热性和耐磨性;结果发现,纳米复合材料的耐热性及耐磨性均有提高,并在3%(质量分数)含量时玻璃化转变温度(Tg)达到最高(147.8℃),耐磨性达到最佳;并结合扫描电镜(SEM)摩擦形貌的观察分析,对纳米粒子的提高材料耐磨性机理进行了初步探讨.In this article,the surface of the nano-SiO2 was modified, and acrylics composite coating filled with the nano-SiO2 was prepared by blending method. The glass transition temperature （Tg） and the wear resistance of the composites were investigated. The results indicated that the Tg and wear resistance of the nano-composite rose, and the Tg of the composite coating was highest （147.8℃）, and the wear resistance of the composite coating was best with 3 % filled. The morphologies of the friction surface were observed and compared by SEM,and the wear mechanism was discussed.

关 键 词：纳米SIO2 丙烯酸酯 表面改性 复合涂料 

分 类 号：O63[理学—高分子化学]