二元醇改性酸酐增韧剂的合成与性能测试

Synthesis and Performance Test of Diol Modified Anhydride Toughener

环氧固化体系中,需要提高韧性,通过二元醇改性过的甲酸酐是比较优秀的增韧剂,加入2-4%就能使得本体拉伸强度、弯曲强度和断裂伸长率得到提高,同时玻璃化转变温度降低幅度较小。

In the epoxy curing system,it is necessary to improve the toughness.The carbolic anhydride modified by diol is an excellent toughening agent.The addition of 2-4%can improve the tensile strength,bending strength and breaking elongation of the hardened resins,while the glass transition temperature decreases slightly.