聚碳酸酯用无底涂有机硅耐磨增硬涂料的制备  

Preparation of Primer-Free Silicone Hard Coating Composition for Polycarbonate Substrate

作　　者：刘仲阳[1] 陈子辉[1] 

机构地区：[1]中海油常州涂料化工研究院有限公司,江苏常州213016

出　　处：《涂料工业》2015年第4期22-27,共6页Paint & Coatings Industry

基　　金：2014年人力资源社会保障部科技活动择优资助项目;中海油能源发展股份有限公司英才计划项目

摘　　要：以己二酸、1,4-丁二醇、2-甲基-1,3-丙二醇和邻苯二甲酸酐为原料,合成了一系列聚酯二元醇。以其作为附着力促进剂,可以提高有机硅耐磨增硬涂层在聚碳酸酯表面的附着力。研究了聚酯的结构、相对分子质量、添加量以及甲基硅树脂固化剂的种类对涂膜性能的影响。结果表明:以数均相对分子质量为1 170的聚己二酸-1,4-丁二醇酯为附着力促进剂、乙酰丙酮铝为固化剂制备的聚碳酸酯用无底涂有机硅耐磨增硬涂料综合性能最为优异,涂膜固化后硬度为H,附着力为0级,耐乙醇性和耐水煮性能较佳,耐磨性和透光性较未涂覆的基材都有了明显提高。A series of polyester diols were synthesized from adipic acid, 1,4-butanediol, 2-methyl-1,3-propanediol and o-phthalic anhydride, and used as adhesion promoter to improve the adhesion of the silicone hard coating on the polycarbonate substrate. The influences of the chemical structure, average molecular weight, dosage of the polyeaster diols, and the type of curing agents of the methyl silicone resin on the properties of the hard coating were also investigated. It was found that the primer-free silicone hard coating compostion comprising poly-1,4-butylene adipate glycol with the number-average molecular weight 1 170 as the ad- hesion promoter and aluminium acetylacetonate as the curing agent exhibited the optimal comprehensive performance including high hardness H, adhesion O as well as good resistance to alcohol and hot water. In addition, the coated substrate showed higher abrasion resistance and the transparency than the bare substrate.

关 键 词：聚碳酸酯 无底涂 耐磨增硬 聚酯 附着力促进剂 

分 类 号：TQ630.7[化学工程—精细化工]