摘要
以碳纤维单向布/网胎针刺织物为增强体,以树脂为基体,制备碳纤维复合材料,探究针刺密度、针刺深度对其力学性能的影响。结果表明:拉伸性能随着针刺密度、针刺深度的增加,呈下降趋势,层间剪切性能呈先增后减趋势;针刺深度对拉伸性能、层间剪切性能影响比针刺密度的大;单向布/网胎叠层针刺复合材料在针刺密度25刺/cm2,针刺深度13 mm工艺参数下具有较优的综合力学性能,其面内拉伸性能为493 MPa,层间剪切性能为30 MPa。
Carbon fiber composite was prepared by using needled carbon fiber unidirectional cloth/fiber web as reinforcement and resin as matrix.The effects of different needling density and needling depth on mechanical properties were investigated.The results showed that the tensile property decreased with the increase of the needling density and the needling depth,and the interlaminar shear property increased first and then decreased.The influence of needling depth on tensile property and interlaminar shear property was greater than that of needling density.The needled unidirectional cloth/fiber web laminate had excellent comprehensive mechanical properties under the process parameters of 25 pierces/cm2 density and 13 mm depth.Its in-plane tensile property was 493 MPa,and the interlaminar shear property was 30 MPa.
作者
程海霞
刘延友
乔志炜
王芳芳
张方超
Cheng Haixia;Liu Yanyou;Qiao Zhiwei;Wang Fangfang;Zhang Fangchao(Advanced Materials Co.of Nanjing Fiberglass Research and Design Institute Co.Ltd.,Nanjing 210012)
出处
《玻璃纤维》
CAS
2020年第4期13-17,共5页
Fiber Glass
关键词
碳纤维单向布/网胎单元层
针刺
复合材料
工艺参数
力学性能
carbon fiber unidirectional cloth/fiber web unit layer
needling
composite
process parameter
mechanical properties
