聚氨酯嵌段环氧阳极电泳树脂的制备及烘烤工艺  

Preparation and Heating Process for the Epoxy Blocked Polyurethane Anode Electrophretic Paint

作　　者：李金艳[1] 王胜军[1] 李再亮 李再峰[1] 

机构地区：[1]青岛科技大学化学与分子工程学院,266042 [2]武汉科利尔化工有限公司,430040

出　　处：《聚氨酯工业》2008年第3期18-21,共4页Polyurethane Industry

摘　　要：利用逐步聚合反应合成了一种热固化型聚氨酯嵌段环氧阳极电泳树脂。研究了环氧树脂的种类及用量、助剂的种类、用量和干燥温度的变化等对漆膜性能的影响。结果表明，环氧树脂E-12占总质量分数约为14.1％，流平剂425占乳液质量分数为0．5％-0.9％，湿膜在50℃干燥30min再升温烘烤能得到性能和外观优异的漆膜。电泳漆膜外观平整光亮，膜厚可达23μm，光泽度（60°）可达130．5°，耐碱性〉96h。A thermal curing anode electrophretic polyurethane resin blocked by epoxy resin was prepared by step polymerization. The effects of the types and dosage of epoxy resins and treatment temperature ＇on the performance of paint film were investigated, respectively. The results showed that the desirable property and appearance of the film could be obtained under the conditions of the mass ratio at about 14% for E-12 epoxy resin, mass ratio was 0. 5% -0. 9% of glide agent 425 in latex, and pre-treatment dried at 50℃ for 30 min before being treated at high temperature. The thickness of film was about 23 μm and the shine（60°） was 130. 5° and the resistant alkali was over 96 h.

关 键 词：聚氨酯 环氧树脂 阳极电泳漆 

分 类 号：TQ637[化学工程—精细化工]