中国塑料2018，Vol.32Issue(5)：67-72,6.DOI:10.19491/j.issn.1001-9278.2018.05.010
纤维包覆对环氧树脂/碳纤维复合材料弯曲性能的影响
Effect of Filament Encapsulation on Flexural Properties of Epoxy/Carbon Fiber Composites
摘要
Abstract
A type of CF bundle wound with PBO(Poly-p-phenylene benzobisoxazole) filament was designed,and than the epoxy composites with the CF bundles were prepared by vacuum assisted resin transfer molding (VARTM).The flexural strength and modulus of the PBO-CF/epoxy composites were evaluated by a three-point bending test method,the bending failure modes were observed by a scanning electron microscope.The influence of filament winding methods on the failure process was studied.The result indicated that filament winding could effectively improve the flexural strength of epoxy/CF composites.The composites achieved an increase in flexural strength by 20 ％ through the unidirectional rotation-winding method and an increase by 36 ％ through the bi-directional rotation-winding mode.The damages of three point bending were all observed on the compression surface.The failure process of filament-winding carbon fiberreinforced composites was resulted by the compressive yield of a single bundle rather than by a single fiber.Moreover the interfacial adhesion between the PBO-CF and epoxy matrix was poor,thus resulting in a limitation for the further improvement of flexural properties.关键词
纤维包覆/碳纤维/结构设计/弯曲性能/屈曲失稳Key words
filament winding/carbon fiber/structural design/flexural properties/yield failure分类
化学化工引用本文复制引用
阮芳涛,徐珍珍,候大寅,邢剑,鲍力民..纤维包覆对环氧树脂/碳纤维复合材料弯曲性能的影响[J].中国塑料,2018,32(5):67-72,6.基金项目
安徽工程大学国家科学基金预研项目(2017yyzr07) （2017yyzr07）
安徽省科技厅对外合作国际合作项目(1704e1002213) （1704e1002213）
安徽省高校自然科学研究重大项目(KJ2017ZD13) （KJ2017ZD13）
