摘要
本文采用偶联剂添加的方法,分别研究了偶联剂种类、偶联剂用量、添加工艺对碳纤维增强乙烯基树脂复合材料性能的影响。分别使用硅烷偶联剂和大分子偶联剂对复合材料进行改性,结果显示大分子偶联剂对碳纤维增强乙烯基树脂复合材料的性能提升更为显著。对于不同种类的碳纤维织物,大分子偶联剂的增强效果不同。对于某国产T700碳纤维织物,随着大分子偶联剂的加入,复合材料性能不断提升,当用量为1.5%时,其层间剪切强度提升了41.4%(由24.4 MPa升至34.5 MPa)。而将大分子偶联剂用于某东丽T700碳纤维织物的改性时,其性能呈现出下降的趋势。此外,对比采用不同添加工艺时复合材料的性能提升幅度和数据分散性发现,大分子偶联剂在树脂中添加使用的工艺优于对碳纤维织物表面喷涂使用的工艺。
In this paper,the effects of the types of coupling agent,the amounts of coupling agent and the adding process on the properties of carbon fiber reinforced vinyl resin composites were studied by adding coupling agent.Silane coupling agent and macromolecule coupling agent were used to modify the composites respectively.The results showed that macromolecule coupling agent improved the properties of carbon fiber reinforced vinyl resin composites more significantly.For different kinds of carbon fiber fabric,the enhancement effect of macromolecule coupling agent is different.For a domestic T700 carbon fiber fabric,with the addition of macromolecular coupling agent,the performance of the composite material is constantly improved,and when the dosage is 1.5%,the interlaminar shear strength increases 41.4%(from 24.4 MPa to 34.5 MPa).However,when the macromolecule coupling agent is used to modify a Toray T700 carbon fiber fabric,its properties show a trend of decline.In addition,by comparing the performance improvement and data dispersion of composite materials with different adding processes,it is found that the process of adding macromolecule coupling agent into resin is better than that of spraying on the surface of carbon fiber fabric.
作者
张振
王万杰
彭运松
曹艳霞
李想
ZHANG Zhen;WANG Wanjie;PENG Yunsong;CAO Yanxia;LI Xiang(School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450000,China;The 725 Research Institute of China Shipbuilding Industry Corporation,Luoyang 471000,China)
出处
《复合材料科学与工程》
CAS
北大核心
2023年第4期34-40,共7页
Composites Science and Engineering
关键词
碳纤维增强树脂基复合材料
偶联剂
界面
carbon fiber reinforced resin matrix composites
coupling agent
interface
