UV-固化GMA-PUA-纳米SiO_2杂化涂料固化动力学  

Curing Kinetics of UV-Curable Glycidyl Methacrylate/Polyurethane-Acrylate/Nano-SiO_2 Hybrid Coatings

作　　者：马营营[1] 高俊刚[1] 林浩杰[1] 

机构地区：[1]河北大学化学与环境科学学院,河北保定072002

出　　处：《涂料工业》2011年第8期39-42,共4页Paint & Coatings Industry

基　　金：河北省自然科学基金资助项目(E2007000204)

摘　　要：采用了示差扫描量热仪(DSC)、动态力学谱仪(DMA)、傅里叶红外光谱仪(FT-IR)研究了GMA-PUA-纳米SiO2复合涂料的非等温固化反应及动态力学性能。结果表明:该体系具有较好的相容性,固化过程可以用自催化esták-Berggren(S-B)动力模型描述。当改性纳米SiO2质量分数为10%时,玻璃化温度达到最大值,提高了7.3℃。The curing process and kinetics of UV - curable hybrid coating based on glycidyl methacrylate （GMA）/polyurethane - acrylate （PUA）/nano - SiO2 were investigated by FT - IR, DSC, and DMA. The results indicated that the three components showed good compatibility. The curing reaction could be described by a two - parameter autocatalytic Sestak - Berggren （ S - B） model. When the content of nano - SiO2 was 10%, the Tg reached the highest, which was increased by 7.3 ℃ compared to the pure system.

关 键 词：UV-光固化涂料 甲基丙烯酸缩水甘油酯 聚氨酯丙烯酸酯 纳米SO2 固化动力学 

分 类 号：TQ630.4[化学工程—精细化工]