摘要
采用SEM、AFM、XPS和FTIR对CCF300碳纤维表面形貌、表面化学特性及碳纤维上浆剂化学特性进行表征,并对CCF300/EH503R3复合材料湿热处理前后的力学性能进行研究。结果表明,碳纤维表面特性对碳纤维与环氧树脂界面结合性能具有显著影响。国产CCF300碳纤维表面粗糙,有明显沟槽,有利于表面机械啮合作用。132℃湿态环境下,复合材料的层间剪切强度、0°压缩强度和开孔压缩强度的保持率分别为51.6%、50.1%和55.5%。试验证明,CCF300碳纤维与EH503R3树脂具有良好的界面结合性,其复合材料具有优异的耐湿热性能。
The surface morphology/chemical properties of carbon fibers and the chemical properties of sizing agent were characterized by scanning electronic microscopy(SEM),atomic force microscopy(AFM),X-ray photoelectron spectroscopy(XPS)and fourier transform infrared spectroscopy(FTIR)and the mechanical properties of CCF300/EH503 R3 composites were tested before and after hygrothermal treatment.The results show that the surface properties of carbon fibers have a significant effect on the bonding properties between carbon fibers and epoxy resin.The surface of CCF300 carbon fibers is rough and has obvious grooves,which is conducive to the mechanical meshing effect of the surface.In 132℃hygrothermal environment,the retention rates of the interlaminar shear strength(ILSS),0°compressive strength and open-cell compressive strength of the composites were 51.6%,50.1%and 55.5%,respectively.Test results demonstrate that CCF300 carbon fiber and EH503 R3 resin have good interfacial bonding,and the composite material has excellent hydrothermal performance.
作者
曾秋云
丛庆
张俊强
袁海静
李丰选
ZENG Qiuyun;CONG Qing;ZHANG Junqiang;YUAN Haijing;LI Fengxuan(Weihai Guangwei Composites Co.,Ltd.,Weihai 264200,Shangdong,China)
出处
《高科技纤维与应用》
CAS
2022年第4期23-29,共7页
Hi-Tech Fiber and Application
作者简介
曾秋云(1990—),硕士,工程师,主要从事碳纤维增强树脂基复合材料研发相关工作,电子邮箱:qiuyunzeng@126.com。
