文档介绍：
贫胶预浸料-RTM 成型工艺及其复合材料力
学性能研究#
李伟东1,刘刚1,包建文1,胡晓兰2,益小苏1**
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(1. 先进复合材料重点实验室,北京航空材料研究院,中航工业复合材料技术中心,中航
复合材料有限责任公司,北京 100095;
2. 厦门大学,材料学院,厦门 361005)
摘要:本文针对 RTM 成型工艺中的定型、预制问题,提出了一种新型的贫胶预浸料-RTM
成型工艺。采用湿法预浸工艺制备了贫胶预浸料及正常树脂含量的预浸料,对比了贫胶预浸
料-RTM 工艺成型的复合材料及预浸料模压工艺成型的复合材料的力学性能。实验结果表
明,RTM 工艺过程中,树脂的流动充模过程可以有效排除附着于贫胶预浸料中的气体,减
少孔隙等缺陷出现的概率,复合材料的内部质量能够得到有效地保证。同时,力学性能测试
表明,贫胶预浸料-RTM 工艺成型的复合材料的层间剪切性能及冲击后压缩性能优于预浸料
模压工艺成型的复合材料。
关键词:贫胶预浸料;RTM 成型工艺;预成型;力学性能
中图分类号:TB332
Research of processing characteristics and mechanical
properties of semi-prepreg posites
Li Weidong1, Liu Gang1, Bao Jianwen1, Hu Xiaolan2, Yi Xiaosu1
(1. Science and Technology on posites Laboratory, Beijing Institute of
Aeronautical Materials, posite Technology Center, posite Corporation LTD.
Beijing 100095;
2. College of Materials, Xiamen University, Xiamen, Fujian 361005)
Abstract: A novel semi-prepreg resin transfer molding (RTM) process was developed to address
difficulties associated with RTM process and to improve the mechanical properties of the resulting
composites. Unidirectional semi-prepregs exhibiting relatively good overlay characteristics were
prepared via prepolymerization of bismaleimide resin followed by wet winding. The processing
characteristics and mechanical properties posites fabricated via semi-prepreg RTM
technology pared with those posites produced u