航空学报 > 2004, Vol. 25 Issue (5): 504-507

超高分子量聚乙烯纤维/碳纤维混杂复合材料研究

何洋1, 梁国正1, 杨洁颖1, 王结良1, 吕生华1, 陈成泗2, 陈孟群2   

  1. 1. 西北工业大学化学工程系, 陕西西安 710072;2. 宁波大成新材料有限公司, 浙江宁波 315300
  • 收稿日期:2003-07-07 修回日期:2004-01-16 出版日期:2004-10-25 发布日期:2004-10-25

Study of UHMWPE Fiber/Carbon Fiber Hybrid Composite

HE Yang1, LIANG Guo-zheng1, YANG Jie-ying1, WANG Jie-liang1, LU Sheng-hua1, CHEN Cheng-si2, CHEN Meng-qun2   

  1. 1. Chemical Engineering Department,Northwestern Polytechnical University, Xi'an 710072, China;2. Ningbo Dacheng New Material Co. Ltd., Ningbo 315300, China
  • Received:2003-07-07 Revised:2004-01-16 Online:2004-10-25 Published:2004-10-25

摘要: 研究了在层内和层间两种混杂方式下,T300与表面处理前后的超高分子量聚乙烯(UHMWPE)纤维混杂复合材料的弯曲强度和ILSS的变化,结果表明层间混杂复合材料的黏结性比层内混杂好。在相同的混杂方式下,采用未处理的DC88纤维、合成的VE树脂,混杂复合材料的ILSS比E 51体系提高25%以上。采用VE树脂和处理后DC88/T300层间混杂,控制含胶质量在40%时,ILSS达到42.5MPa,是未处理的DC88/E 51体系的ILSS的5倍。混杂复合材料密度在1.12~1.24g/cm3之间,在航空航天结构材料减重上有良好的应用前景。

关键词: 混杂, UHMWPE纤维, 界面黏结性, 层间剪切强度

Abstract: Carbon fiber T300 is chosen as a co-hybrid fiber, and two different kinds UHMWPE fiber/T300 hybrid composites are prepared in both inner-laminar and inter-laminar styles. The inter-laminar hybrid composites exhibite better adhesion than the inner-laminar ones. VE resin which is synthesized in lab increases the adhesion by 25 % in comparison to epoxy resin E-51.For the optimized system DC88/T300/ VE, the ILSS reaches 42.5MPa, 5 times of the untreated DC88/ E-51 system. ILSS increases with the increasing of resin content at first, and then decreases with further increase, so that a maximum ILSS is obtained in each of the resin systems. The VE peak occurres at a lower resin content range than E-51 peak, indicating VE has a better adhesion with DC88 than epoxy resin E-51.The density of hybrid composites changes from 1.12 g/cm3 to 1.24 g/cm3, which suggestes that the hybrid composite has a potential application in space structures.

Key words: hybrid, UHMWPE fiber, interface adhesion, interlaminar shear strength(ILSS)