梁军浩,郭金磊,刘宝琪,梁欢欢,刘羿,贺辛亥
LIANG Jun-hao,GUO Jin-lei,LIU Bao-qi,LIANG Huan-huan,LIU Yi,HE Xin-hai

• 1:西安工程大学材料工程学院

摘要(Abstract)：

为获得最佳的混编排列方式，基于三维四向编织结构，以碳纤维(CF)和超高分子质量聚乙烯(UHMWPE)纤维为增强体，以环氧树脂(EP)为基体，采用真空导入工艺设计制备了三维编织UHMWPE/CF/EP复合材料，并研究了不同混编排列方式预制件复合材料的弯曲性能。结果发现：韧性UHMWPE纤维的加入改变了非混杂碳纤维三维编织树脂基复合材料的弯曲破坏模式，破坏模式呈现为塑性破坏特征；基于CF和UHMWPE纤维数量之比为1∶1的情况下，采用逐块排列混编方式的复合材料的弯曲性能最佳，较之逐束排列混编方式的复合材料提高24.28%。
In order to obtain the best hybrid arrangement, using carbon fibers(CF) and ultra-high molecular weight polyethylene(UHMWPE) fibers as reinforcement, epoxy resin(EP) as matrix, 3D braided UHMWPE/CF/EP composites were designed and fabricated by vacuum injection molding process based on 3D fourway braided structure. The bending properties of prefabricated composites with different mixed arrangement were studied. The results show that the addition of ductile UHMWPE fiber changes the bending failure mode of non-hybrid carbon fibers 3D braided resin matrix composites, presenting a plastic failure characteristic. The fiber number ratio based on CF and UHMWPE fibers is 1: 1, the composites with piece-by-block arrangement has the best bending property, which is 24.28% higher than the composites with piece-bybundle arrangement.

关键词(KeyWords)： UHMWPE;CF;混编方式;三维编织;真空导入工艺;复合材料;弯曲性能
UHMWPE;CF;hybrid braided;3D braiding;vacuum injection molding process;composites;bending property

Abstract:

Keywords:

基金项目(Foundation): 陕西省重点研发计划项目(2022NY-085);; 陕西省秦创原“科学家+工程师”队伍建设项目(2022KXJ-013);; 陕西省教育厅科研计划项目资助(21JK0954)

作者(Author): 梁军浩,郭金磊,刘宝琪,梁欢欢,刘羿,贺辛亥
LIANG Jun-hao,GUO Jin-lei,LIU Bao-qi,LIANG Huan-huan,LIU Yi,HE Xin-hai

DOI: 10.16090/j.cnki.hcxw.2023.04.016

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