室温交联型氨基硅油-丙烯酸树脂复合乳液的制备及涂膜性能  

Preparation of Ambient Temperature Self-Crosslinkable Amino-Modified Silicone Oil-Acrylic Resin Composite Emulsion and Its Film Performances

作　　者：沈桥[1] 强西怀[1] 张辉[1] 

机构地区：[1]陕西科技大学资源与环境学院,西安710021

出　　处：《涂料工业》2013年第12期41-45,共5页Paint & Coatings Industry

基　　金：国家自然科学基金(No.51103082);陕西科技大学创新科研团队(No.TD12-04);陕西科技大学研究生创新基金

摘　　要：将功能单体乙酰乙酸基甲基丙烯酸乙酯(AAEM)引入丙烯酸树脂分子链中,在制备的丙烯酸树脂乳液中添加氨基硅油作为交联剂,形成室温自交联型硅丙树脂复合乳液。FT-IR证实了氨基硅油与AAEM之间交联反应的发生;通过测试涂膜吸水率、溶胀率、T g、抗张强度及断裂伸长率等,考察了AAEM-氨基硅油交联体系对乳液涂膜基本性能的影响。实验结果表明:氨基硅油的引入和相互交联网络的形成,提升了涂膜物理性能,可使涂膜具有更好的柔韧性和丰满度。Functional monomer acetyl acetyethyl methacrylate （AAEM） was introduced in- to acrylic polymer molecules via emulsion copolymerization to form acrylic resin emulsions, in- to which amino silicone oil latexes were added as crosslinker, formulating the ambient temper- ature self- crosslinkable amino silicone oil- acrylic resin composite emulsion. FT- IR spec- tra confirmed the existing of crosslinking reaction had emerged in the composite film. Effects of the AAEM -amino silicone oil systems on the perfbrmances of the composite films were val- ued by water absorption, swelling experiments, glass - transition temperature （Tg） and me- chanical properties analysis. The results indicated that the incorporation of amino- modifie silicone oil latexes and crosslinking reaction improved the mechanical properties of the compos- ite films, as well as the flexibility and fullness of the film.

关 键 词：丙烯酸树脂 氨基硅油 复合乳液 室温自交联 

分 类 号：TQ630.43[化学工程—精细化工]