The effect of ionic liquids on the decomposition behavior of epoxy resin in subcritical water

Abstract

The effect of ionic liquids on the decomposition behavior of the E-51/MeTHPA system in subcritical water conditions was studied. The effects of ionic liquid types and dosage on decomposition ratio were investigated in detail. The results showed that [Bmim]BF₄ and [Bmim]Cl/xZnCl₂ (x = 0.67) could improve the decomposition ratio of the resin system, and [Bmim]Cl/xZnCl₂ (x = 0.67) was more efficient. Meanwhile, the promotion mechanism of ionic liquid for the decomposition ratio was analyzed. The decomposition kinetics study of the E-51/MeTHPA system showed that the reaction order of the resin system without ionic liquids was 0.8301 in subcritical water conditions, while with the addition of 20 wt% [Bmim]BF₄ and [Bmim]Cl/xZnCl₂ (x = 0.67), the reaction order n was 0.6727 and 0.6602, respectively.