摘要
利用热压工艺制备了三种不同等温结晶时间的连续碳纤维(CF)增强尼龙6(PA6)单向复合材料,并分别研究了吸湿前后连续CF/PA6复合材料单向板的0°拉伸、90°拉伸、弯曲和层间剪切性能变化。结果发现,CF/PA6复合材料的0°拉伸、90°拉伸、弯曲和层间剪切强度(模量)分别下降了10%～37%(0～0.6%)、35%～46%(62%～64%)、53%～61%(16%～28%)和5%～31%。结合SEM断面观察和抛光金相显微学给出了吸湿对CF/PA6复合材料性能的影响机制。
Continuous carbon fiber reinforced polyamide 6(CF/PA6)unidirectional laminates with three different isothermal crystallization time were prepared.The tensile tests of 0°and 90°,the bending and interlaminar shear tests before and after water absorption of CF/PA6 composites were then respectively performed.The results show that the strength(and modulus)of 0°and 90°tensile,bending and interlaminar shear of CF/PA6 composites are de-creased by 10%-37%(0-0.6%),35%-46%(62%-64%),53%-61%(16%-28%)and 5%一31%,re-spectively.The effect mechanism of water absorption on the properties of CF/PA6 composite is given with the help of further characterization methods of SEM and metallographic microscopy.
作者
李宏福
王淑范
孙海霞
王洋
张博明
LI Hongfu;WANG Shufan;SUN Haixia;WANG Yang;ZHANG Boming(School of Transportation Science and Engineering,Beihang University,Beijing 100191,China;Beijing Institute of Aerospace Systems Engineering,Beijing 100076,China;School of Materials Science and Engineering,Beihang University,Beijing 100191,China)
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2019年第1期114-121,共8页
Acta Materiae Compositae Sinica
基金
国家自然科学基金委科学技术产业化项目(U1664250)
中国航天科技集团第一研究院项目(2017AV33675)
关键词
热塑性复合材料
吸湿
碳纤维
尼龙
力学性能
thermoplastic composites
water absorption
carbon fiber
polyamide 6
mechanical properties
