Design, synthesis, and theoretical analysis of thermal stability epoxy resins obtained through a facile and cost-effective approach

摘要

A trifunctional epoxy resin (TGPAP) with excellent thermal stability was cured by several novel curing agents through a facile and cost-effective approach. The temperature of maximum weight loss rate (T-peak) of cured TGPAP were up to 370 degrees C and 330 degrees C under N-2 and air atmospheres, which attributed to the synergistic effects between curing agents and TGPAP. The dissipative particle dynamics simulations also reveal that the curing agents with more functional groups and higher reactivity induce the higher cross-linking density, leading to better mechanical properties. The simulations well reproduced the experimental results and also predicted the effect of the curing agents on mechanical properties.