纳米二氧化硅改性水性汽车涂料的研制  

Development of Waterborne Automotive Coatings Modified by Nanosilicon Dioxide

作　　者：郭逍遥 汤汉良 李树伟 

机构地区：[1]清远市浩宇化工科技有限公司,广东清远511540

出　　处：《上海涂料》2016年第6期16-19,共4页Shanghai Coatings

摘　　要：通过引入纳米二氧化硅及具有低熔点、高溶解度的亲水单体二羟甲基丁酸,采用预聚物分散工艺,制得高性能纳米二氧化硅改性水性聚氨酯分散体,并与水性丙烯酸分散体复配,制得高硬度、低挥发性有机化合物(VOC)含量和漆膜综合性能良好的水性汽车涂料。讨论了影响涂料性能的诸种因素。A high performance nanosilicon dioxide modified waterborne polyurethane dispersion was prepared by the introduction of nanosilicon dioxide, as well as the hydrophilic monomer dimethylol butanoic acid with low melting point and high solubility, and the prepolymer dispersion process. The waterborne automotive coatings with the high hardness, low VOC content and good film comprehensive properties was prepared by the combination of waterborne polyurethane dispersion and waterborne acrylic dispersion. The various factors affecting the performance of coatings were discussed.

关 键 词：纳米二氧化硅 改性 水性聚氨酯分散体 水性汽车涂料 

分 类 号：TQ637[化学工程—精细化工]