The Properties of Modified Nano-SiO_2/Acrylics Composite Coating

Abstract

[中文文摘]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.[英文文摘]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.厦门市科技计划项目(3502Z20063004