摘要
利用多官能度的三羟甲基丙烷三丙烯酸酯(TMPTA)制备了一种新型的聚氨酯-丙烯酸酯(PUA)复合乳液,分别对所得乳液及相应涂膜进行热固化和UV固化。利用FT-IR光谱对PUA的结构进行了表征,考察了PUA复合乳液的乳液性能;对两种固化体系的双键转化率进行了研究;同时对两种固化方式所得到的涂膜性能进行了研究和比较。实验结果发现,固化后涂膜的力学性能、耐水性、耐溶剂性和耐化学品性均得到显著提高。通过比较发现,UV固化体系涂膜的综合性能优于热固化体系。
A new polyurethane- polyaerlate （PUA） hybrid emulsion was synthesized by using a multifunctional monomer trimethylol propane triacrylate （TMPTA）. Thermal and UV curing methods were applied on the synthesized emulsion and its corresponding fihn respectively. The structure of PUA was characterized by FT - IR spectrum and the properties of emulsion were investigated. The C =-C conversion of thermal and UV curing systems were studied respectively. The properties of the cured films were also studied for the two curing systems. The results showed that the mechanical properties, water resistance, solvent resistance and chemical resistance were greatly improved after the films were cured. Moreover, compared with thermal cured films, UV cured films exhibited superior properties.
出处
《涂料工业》
CAS
CSCD
北大核心
2011年第3期18-23,共6页
Paint & Coatings Industry
