摘要： 以糠醛(F)和丙酮(A)作为环氧树脂的活性稀释剂,分别用二乙烯三胺(DETA)、酚醛胺固化剂T-31、改性胺固化剂593等作为环氧树脂固化剂,2,4,6-三(二甲氨基甲基)苯酚(DMP-30)、三乙醇胺(TEOA)、2-乙基-4-甲基咪唑(EMI)等作为环氧树脂的固化促进剂,制备了糠醛丙酮改性环氧树脂体系涂料。考察了糠醛丙酮的配比、固化剂、稀释剂、固化促进剂等对环氧树脂涂料的固化特性和力学性能的影响,确定了各改性环氧树脂涂料最佳的组成体系与配比。实验结果表明:糠醛丙酮的不同配比、不同促进剂或固化剂种类及用量对涂料的固化性能以及力学性能具有显著的影响,改变促进剂或固化剂种类及用量可以调节涂料的初凝时间、力学性能等。
关键词:
环氧树脂涂料,
活性稀释剂,
糠醛,
丙酮
Abstract: Epoxy resin coatings were prepared by using furfural and acetone as the reactive diluent, using phenolic amine curing agent(t-31), modified amine curing agent 593 and diethylenediamine(DETA) as the curing agent, and using DMP-30, triethanolamine (TEOA and 2-ethyl-4-methylimidazde(EMI )as curing accelerators. The influence of acetone/furural ratio. curing agents, reactive diluent, curing accelerators on the curing characteristics and mechanical properties of epoxy resin coatings was investigated. The optimal formula of coating system was obtained. The results showed that the different acetone/furfural ratio, the types and amounts of different accelerators or curing agents had a significant effect on the cuning properties and mechanical properties of the coatings. Changing the type and amount of the accelerator or cuning agent could adiust the initial gel time and the mechanical properties of the epoxy resin coatings.
Key words:
epoxy resin coatings,
reactive diluent,
furfural,
acetone
陈柳利, 刘伟区, 王政芳,. 糠醛丙酮改性环氧树脂体系涂料的配制及性能研究[J]. 涂料工业, 2017, 47(9): 1-5.
Chen Liuli, Liu Weiqu, Wang Zhengfang,. Study on Preparation and Properties of Modified Epoxy Resin Coating System with Furfural and Acetone as Active Diluent[J]. Paint & Coatings Industry, 2017, 47(9): 1-5.