循环湿热环境下碳纤维复合材料的界面性能

封彤波; 肇研; 罗云烽; 张佐光

循环湿热环境下碳纤维复合材料的界面性能

北京航空航天大学材料科学与工程学院, 北京 100191

详细信息

作者简介:
封彤波(1966- ),男,河北成安人,高工,tongbo_feng@yahoo.com.cn.

中图分类号: TQ 327.3
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出版历程
- 收稿日期: 2010-10-18
- 网络出版日期: 2010-12-30

Effect of cyclic hygrothermal environment on interfacial property of CCF300/BMI composites

School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 针对CCF300/5428复合材料在循环湿热环境下的吸湿-脱湿行为和层间剪切性能进行了研究,并结合扫描电镜观察了循环湿热处理的不同阶段纤维/基体界面结合状态.研究结果表明:经过反复吸湿后,水分的初始扩散速率和饱和吸湿率增加;脱湿后水对复合材料层间剪切性能的影响大部分可以消除;复合材料吸湿后室温环境下性能下降较少,但在高温高湿环境下,复合材料的性能会显著降低.
- 碳纤维 /
- 复合材料 /
- 湿热循环 /
- 层间剪切性能
Abstract: An experimental investigation was conducted in order to study the effect of cyclic hygrothermal environment on the interfacial property of CCF300/5428 composites. The moisture weight and interlaminar shear strength(ILSS) of CCF300/5428 specimens of each stage during three absorption-desorption cyclical processes were tested. The morphology of interface between carbon fiber and resin was characterised by applying scanning electron microscope(SEM) method. The results show that the composites exhibit higher diffusivity after suffering reabsorption steps. The reversible effects of water on ILSS of the composites can be eliminated after desorption. The ILSS of the composites degrade obviously due to high temperature, while the humidity has weak effect on the mechanical performance of the composites at room temperature.
- carbon fiber /
- composites /
- cyclic hygrothermal /
- interlaminar shear strength(ILSS)

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