在多元胺中引入环氧树脂(EP),再通过成盐反应,合成出含仲胺盐结构、可乳化液体EP的固化剂;然后采用相反转法制备出稳定的水性EP乳液。结果表明:该固化剂在室温时具有一定的潜伏性(水性EP乳液室温储存期超过14 d),而在较高温度时具有快速固化的特点。仲胺盐的起始分解温度(Ti)约为113℃,当固化温度较低时,仲胺盐热分解反应难以进行,封闭的仲胺基与环氧基的固化反应难以发生,表现为成盐率越高,乳液凝胶时间越长;当固化温度>Ti时,仲胺盐快速热分解后释放出被封闭的活性仲胺基,乳液可快速固化,成盐率对乳液凝胶时间的影响不大。各固化膜均具有较低的吸水率(<3.1%),其耐水性和耐丙酮性能优良,但耐强酸、强碱性能较差且随固化剂成盐率提高而下降。 Epoxy resin (EP) was introduced into the polyamine to form a curing agent containing a secondary amine salt structure and emulsifiable liquid EP through salt-forming reaction. Then, a stable aqueous EP emulsion was prepared by the phase inversion method. The results show that the curing agent has some latent properties at room temperature (the storage time of aqueous EP emulsion is more than 14 d at room temperature), but it is fast curing at higher temperature. The initial decomposition temperature (Ti) of the secondary amine salt is about 113 ° C. When the curing temperature is low, the thermal decomposition reaction of the secondary amine salt is difficult to proceed. The curing reaction between the blocked secondary amine group and the epoxy group hardly occurs, When the curing temperature> Ti, the secondary amine salt released quickly after the thermal activity was blocked by the secondary amine group, the emulsion can be quickly cured, salt formation rate of the gel time of the emulsion Has little effect. Each cured film has a low water absorption (<3.1%), its excellent water resistance and acetone resistance, but resistant to acid, alkali performance is poor and with the curing agent salt rate increased.