塑料科技2025，Vol.53Issue(11)：45-51,7.DOI:10.15925/j.cnki.issn1005-3360.2025.11.009
两种表面改性方法对芳纶纤维增强环氧树脂材料的影响分析
Influence Analysis of Two Surface Modification Methods on Aramid Fiber Reinforced Epoxy Resin Materials
摘要
Abstract
Aramid fibers have a typical"skin-core"structure,with smooth surfaces and high chemical inertness.It is difficult for composites reinforced with aramid fibers to form strong mechanical adhesion with the matrix material,resulting in poor mechanical properties of the composites and limiting their widespread application.In this study,the surface of aramid fibers was modified using coating technology.The surface properties of the modified aramid fibers and the properties of the modified aramid fiber-reinforced resin samples were tested through a combination of simulation and experimental analysis.The results showed that after modification with polyurethane coating,the surface roughness of the fibers increased by 33.33％,and wettability improved by 16.33％.The density of the resulting composite was 1.266 g/cm3,and the interfacial binding energy of the corresponding model was 0.471 J/m2.After modification with dopamine coating,the surface roughness of the fibers increased by 50.62％,and wettability improved by 21.51％.The density of the resulting composite was 1.981 g/cm3,and the interfacial binding energy of the corresponding model was 0.982 J/m2.A comparison of the mechanical properties of the two types of modified aramid/epoxy resin composites revealed that the dopamine-modified aramid/epoxy resin composite had better mechanical properties,with greater potential for industrial application.关键词
界面增强/芳纶纤维/表面涂层改性/环氧树脂/轻量化复合横担Key words
Interfacial reinforcement/Aramid fiber/Surface coating modification/Epoxy resin/Lightweight composite cross-arms分类
通用工业技术引用本文复制引用
王永强,曹雨琪,张凤啸,王鹏..两种表面改性方法对芳纶纤维增强环氧树脂材料的影响分析[J].塑料科技,2025,53(11):45-51,7.基金项目
河北省智能电网配用电技术创新中心开放课题(20211201) （20211201）
