碳纤维增强聚醚醚酮复合材料力学性能研究

Mechanical Performance of Carbon Fiber Reinforced Poly Ether Ether Ketone Composites

通过热压成型方法制备出碳纤维增强聚醚醚酮(CF/PEEK)复合材料,研究了CF含量和退火处理对拉伸力学性能的影响,CF含量对压缩力学性能的影响。结果表明:随着CF含量的增加,拉伸力学性能先增加后下降。退火处理在CF含量较低时增加了CF/PEEK复合材料的拉伸力学性能,在高CF含量时,对拉伸力学性能起到负面的影响。随着CF含量的增加,CF/PEEK复合材料的压缩性能先上升后下降,且碳纤维含量在10%时压缩性能达到最大值503.56 MPa。

The carbon fiber reinforced poly ether ether ketone （CF/PEEK） composites were manufactured by thermal pressure molding technology. The influences of CF content and annealing treatment on the tensile mechanical strength, compress mechanical strength and surface hardness on CF/PEEK composite were investigated. The results showed that tensile mechanical strength first increased and then decreased with the rise of CF content. Annealing treatment increased the tensile mechanical properties of CF/PEEK composites when CF content was low, while CF content was high; annealing treatment had the negative impact on the tensile mechanical properties. With the increase of CF content, the compress mechanical strength first increased and then decreased, the maximum value was 503.56 MPa.