摘要
本文采用相同工艺制备了三种多轴向经编碳纤维复合材料,研究了不同编织方式的碳纤维复合材料的冲击、压缩及摩擦性能。结果表明,三轴(±45°/90°)碳纤维复合材料表现出了突出的冲击性能,相比于二轴(±45°)复合材料,冲击强度提高90%,相比于四轴(-45°/0°/+45°/90°)复合材料,冲击强度提高45%。二轴(±45°)、三轴(±45°/90°)、四轴(-45°/0°/+45°/ 90°)碳纤维复合材料的压缩强度随着编织角的增加而增大,四轴相比于二轴压缩强度提高125.7%。温度对碳纤维复合材料的摩擦性能有直接影响,室温下与平纹编织碳纤维复合材料相比,多轴向经编碳纤维复合材料的摩擦系数更低,摩擦稳定性更高;高温下,复合材料摩擦系数随着试验温度的增加呈先减小后增大的趋势,当试验温度为150 ℃时,复合材料的摩擦系数有最小值。
In this paper, three kinds of multiaxial warp-knitted carbon fiber composites were prepared by the same process. The impact, compression and friction characteristics of carbon fiber composites with different weaving methods were studied. The results show that the three-axis (±45°/90°) carbon fiber composite show outstanding impact properties. Compared with the two-axis (±45°) composite, the three-axis impact strength is increased by 90%. While compared with the four-axis (-45°/0°/+45°/90°) composite, the three-axis impact strength is increased by 45%. Compression strength of two-axial (±45°), three-axial (±45°/90°) and four-axial (-45°/0°/+45°/90°) carbon fiber composites are increased with the increase of weaving angle. Compared with the four axis and the two axis, the compression strength increases by 125.7%. Temperature has a direct effect on the friction properties of composites. Compared with plain weave carbon fiber composites at room temperature, the friction coefficient of multiaxial warp-knitting carbon fiber composites is lower and the friction stability is higher. With the increase of the test temperature, the friction coefficient of composites decreases first and then increases. When the temperature is 150 ℃, the friction coefficient of composite reaches its minimum value.
作者
刘明帆
张鹏
程永奇
LIU Ming-fan;ZHANG Peng;CHENG Yong-qi(College of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China)
出处
《玻璃钢／复合材料》
CAS
北大核心
2019年第7期28-33,共6页
Fiber Reinforced Plastics/Composites
基金
广东省工业高新技术领域科技计划项目(2014A010105042,2017A010102021)
关键词
多轴向经编结构
复合材料
冲击性能
压缩性能
摩擦性能
multiaxial warp-knitting structure
composites
impact property
compression property
friction performance
