环氧树脂改性三乙烯四胺固化剂的合成及性能研究

Synthesis and Properties of Epoxy Resin Modified Triethylenetetramine Curing Agen

采用环氧树脂E44对三乙烯四胺(TETA)固化剂进行改性及其性能的研究。实验结果表明:最佳改性条件为n(AGE):n(E44):n(TETA)=4.5:1:3,反应温度为50℃,反应时间为3h,可制备出水溶性优异,与环氧树脂乳液相容性优良的改性环氧树脂固化剂,其比未改性的三乙烯四胺有优异的物理化学性能和环保性能。该固化剂以水为溶剂,大大降低了制备出的涂料的VOC含量。

Epoxy resin E44 was used to modify TETA curing agent and its properties.The experimental results showed that the optimum conditions for the modification were as follows:n(AGE):n(E44):n(TETA)=4.5:1:3,reaction temperature 50℃and reaction time 3 h.Can prepare a modified epoxy resin curing agent with excellent water solubility and excellent compatibility with the epoxy resin emulsion,it has excellent physical and chemical properties and environmental performance better than the unmodified triethylenetetramine.