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废玻璃钢粉(WFRPP)经硅烷偶联剂KH550表面处理后,与环氧树脂(EP)共混并热压固化,制备了WFRPP/EP复合材料。研究了WFRPP与EP配比、偶联剂KH550的用量、增韧剂端环氧基液体丁腈橡胶(ET-BN)的用量对复合材料力学性能的影响,并通过电子扫描显微镜观察了复合材料内部的微观结构。结果表明:当WFRPP与EP配比为50∶70、偶联剂质量分数为5%(基于废玻璃钢粉质量)、增韧剂质量分数为12%(基于环氧树脂质量)时,所制备的复合材料综合性能最佳。废玻璃钢粉经适量偶联剂表面处理后,有利于废玻璃钢粉在体系中的均匀分散,并可以使WFRPP/EP复合材料获得较好的两相相容性。此外,ETBN对复合材料具有一定的增韧效果。
WFRPP / WFRPP / WFRPP composites were prepared by surface treatment of silane coupling agent (KH550), epoxy resin (EP) and hot pressing. The effects of the ratio of WFRPP and EP, the amount of coupling agent KH550 and the amount of ET-BN on the mechanical properties of the composites were investigated. The effects of the amount of the epoxy-terminated nitrile rubber (ET-BN) on the mechanical properties of the composites were investigated by scanning electron microscopy Internal microstructure. The results show that when the ratio of WFRPP to EP is 50:70, the mass fraction of coupling agent is 5% (based on the mass of waste FRP) and the toughening agent is 12% (based on the mass of epoxy resin) Composites the best overall performance. After the surface treatment of the waste FRP with the proper amount of coupling agent is beneficial to the uniform dispersion of the FRP in the system, the WFRPP / EP composite material can achieve better two-phase compatibility. In addition, ETBN has certain toughening effect on the composite material.