高性能UV固化聚氨酯的制备及性能研究  

The preparation and properties studies of high performance waterborne UV-curable polyurethane

作　　者：齐家鹏 姚伯龙[1] 张国标[1] 王利魁[1] 李洪萍[1] 

机构地区：[1]江南大学化工学院食品胶体与生物技术教育部重点实验室,江苏无锡214122

出　　处：《功能材料》2015年第15期15124-15128,共5页Journal of Functional Materials

摘　　要：选用二羟甲基丙酸(DMPA)、六亚甲基二异氰酸酯(HDI)三聚体、异佛尔酮二异氰酸酯(IPDI)、季戊四醇三丙烯酸酯(PETA)、三乙胺等为主要原料合成了高性能UV固化水性聚氨酯乳液,并在添加光引发剂1173后,UV固化制备涂层。采用FT-IR、1H NMR、TGA和DSC等对合成树脂的结构和性能进行表征。与市售水性UV固化聚氨酯乳液对比,本乳液具有更小的粒径、更高的活性,所制备的涂层具有更高的硬度、更优异的耐磨和耐水等性能。In this paper,high performance waterborne UV-curable polyurethane emulsion was prepared with isophorone diisocyanate( IPDI),pentaerythritol triacrylate( PETA),2,2-bis( Hydroxymethyl) propionic acid( DMPA) and hexamethylene diisocyanate( HDI) trimer. Subsequently with the polyurethane emulsion as film forming material,and light initiator 1173 transparent UV cured coating was formed. The structure and properties of waterborne UV-curable resin were characterized by fourier transform infrared spectroscopy( FT-IR) and nuclear magnetic resonance(1H NMR). Additionally,the heat resistance of TWPU was determined by thermogravimetric analysis( TGA) and differential scanning calorimeter( DSC). Furthermore,the properties of the emulsion and the films were compared with the commercially available waterborne waterborne UV-curable polyurethane emulsion. The results showed that the UV-curable polyurethane emulsion has smaller particle size,higher activity and the film formed from such emulsion had betterhardness,wear resistance and waterproof effect.

关 键 词：UV固化 高性能 水性 聚氨酯 

分 类 号：TQ322.44[化学工程—合成树脂塑料工业]