表面改性芳纶复合材料的界面粘结与界面断裂韧性

THE ADHESION AND THE FRACTURE ENERGY AT THE TNTERFACE OF COMPOSITES OF ARAM ID FIBER WITH ACTIVE SKIN LAYER

本文以表面改性芳纶(表面引入烯丙基或环氧基团)和改性BMI型树脂组成复合材料体系,研究芳纶表面改性对其复合材料界面粘结与界面断裂韧性的影响。实验结果证明,芳纶表面改性显著提高了其复合材料界面的粘结强度,相反却降低了其界面断裂能。

In this psper ,the active ararnid fiber with Allyl or epoxy group at the surface and matrix ot BMI type resin are selectd. This composites is used to research the influence of aramid fiber with active surface on the adhesion and fracture energy at the interface. The results show that the in-terfacial adhesion strength increased noticeably for composites of active aramid fiber but the fracture energy of the interface decreased.