中国塑料 ›› 2022, Vol. 36 ›› Issue (4): 19-23.DOI: 10.19491/j.issn.1001-9278.2022.04.004

• 材料与性能 • 上一篇    下一篇

芳纶包覆碳纤维增强环氧树脂的轴向压缩性能研究

阮芳涛1,2(), 夏成龙1, 张宝根1, 曹叶1, 刘志1,2, 徐珍珍1,2, 章劲草3()   

  1. 1.安徽工程大学纺织服装学院,安徽 芜湖 241000
    2.安徽省纺织结构复合材料国际联合联合中心,安徽 芜湖 241000
    3.上海楚江企业发展有限公司,上海 200000
  • 收稿日期:2021-11-11 出版日期:2022-04-26 发布日期:2022-04-24
  • 通讯作者: 章劲草,男,北京航空航天大学毕业,工学博士,高级工程师,从事碳基复合材料研究和生产, zhangjincao@126.com
    E-mail:ruanfangtao@ahpu.edu.cn;zhangjincao@126.com
  • 作者简介:阮芳涛,副教授,从事纤维增强复合材料的研究,ruanfangtao@ahpu.edu.cn
  • 基金资助:
    国家自然科学青年基金项目(51903001);安徽省留学人员创新项目择优资助计划(2018LCX004);国家级大学生创新创业训练计划项目(202010363044)

Axial compressive properties of aramid⁃coated carbon⁃fiber⁃reinforced epoxy resins

RUAN Fangtao1,2(), XIA Chenglong1, ZHANG Baogen1, CAO Ye1, LIU Zhi1,2, XU Zhenzhen1,2, ZHANG Jincao3()   

  1. 1.School of Textiles and Garment,Anhui Polytechnic University,Wuhu 241000,China
    2.International Cooperation Research Center of Textile Structure Composites,Anhui Province,Wuhu 241000,China
    3.Shanghai Truchum Enterprise Development Co,Ltd,Shanghai 200000,China
  • Received:2021-11-11 Online:2022-04-26 Published:2022-04-24
  • Contact: ZHANG Jincao E-mail:ruanfangtao@ahpu.edu.cn;zhangjincao@126.com

摘要:

采用缠绕法制备了芳纶长丝包覆碳纤维束,利用真空辅助树脂转移成型法制备了包覆碳纤维增强环氧树脂。通过电子万能试验机测试了复合材料的轴向压缩性能,研究了长丝缠绕方式、包覆密度和碳纤维束的数量对试样压缩强度及破坏模式的影响。结果表明,芳纶包覆能够提升碳纤维复合材料的压缩强度,随着芳纶长丝包覆密度的增加,压缩强度逐渐增加;相比较单向缠绕包覆方式,芳纶长丝双向缠绕包覆能够进一步提升复合材料的轴向压缩强度;增强纤维束的数量会影响纤维屈曲状态,进而使得纤维复合材料的压缩强度进一步提升。

关键词: 长丝包覆, 纤维增强树脂, 复合材料, 轴向压缩强度

Abstract:

Aramid?filament?wrapped carbon fiber bundles were prepared using a covering method, and wrapped carbon?fiber?reinforced epoxy resins were prepared by means of a vacuum?assisted resin?transfer?molding method. The axial compressive properties of the resultant composites were measured using an electronic universal testing machine, and the effects of aramid?filament?wrapped parameters on their axial compressive fracture mode and compressive strength were investigated. The experimental results indicated that the aramid filament wrapping could improve the compressive strength of the composites. The compressive strength of the composites increased gradually with an increase in the density of the aramid filament. Compared to the unidirectional covering, the biaxial covering of the aramid filament could further improve the axial compressive strength. The number of reinforcing fiber bundles also affected the fiber buckling state, resulting in a further improvement in compressive strength.

Key words: filament wrapping, fiber reinforced resin, composite, axial compressive strength

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