摘要
制备了适于配制紫外光固化涂料的环氧丙烯酸酯,研究了反应温度、阻聚剂、催化剂等因素对环氧树脂与丙烯酸反应的影响;讨论了反应机理和动力学;并利用红外光谱观察了产物的紫外光固化行为。季铵盐能有效地催化环氧树脂和丙烯酸的反应,当其用量为0.6%～1.2%时,在90～110℃反应4.5～8小时后,环氧基转化率大于97%。由此配制的光固化涂料经紫外光辐照能快速固化。
UV-curable epoxy acrylates were prepared by reacting epoxy resin with acrylic acid in the presence of quaternary ammonium salt. The effects of temperature, inhibitors,catalysts and others on the reaction have been examined. The mechanism and the kinetics are discussed. The UV-curing was determined by IR spectra. In the presence of 0. 6%～1.2% quaternary ammonium salt at 90～110℃, after 4.5～8 hours, the conversion of the epoxy group achieved over 97% and the paint obtained could be cured fast by UV-light irradiation.
出处
《应用化学》
CAS
CSCD
北大核心
1993年第6期39-43,共5页
Chinese Journal of Applied Chemistry
关键词
环氧丙烯酸酯
紫外光固化
涂料
epoxy acrylate,quaternary ammonium salt,UV-curing ,coating
