复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (5): 31-37.DOI: 10.19936/j.cnki.2096-8000.20250528.004

• 基础与力学性能研究 • 上一篇    下一篇

亚麻/玄武岩混杂纤维复合材料力学性能研究

张娟娟1, 黎世杰2, 陈湘林2, 王涛3, 祝恪恒3, 慕文龙2*   

  1. 1.河南凯瑞车辆检测认证中心有限公司, 焦作 454950;
    2.河南农业大学 机电工程学院, 郑州 450002;
    3.驻马店大力天骏专用汽车制造有限公司, 驻马店 463000
  • 收稿日期:2024-01-19 出版日期:2025-05-28 发布日期:2025-07-11
  • 通讯作者: 慕文龙(1991—),男,博士,讲师,硕士生导师,研究方向为汽车轻量化,muwl1992@hotmail.com。
  • 作者简介:张娟娟(1990—),女,学士,中级工程师,研究方向为新能源汽车。
  • 基金资助:
    国家自然科学基金(51775230)

Study on mechanical properties of flax/basalt hybrid fiber composites

ZHANG Juanjuan1, LI Shijie2, CHEN Xianglin2, WANG Tao3, ZHU Keheng3, MU Wenlong2*   

  1. 1. Henan CAERI Vehicle Testing and Certification Center Co., Ltd., Jiaozuo 454950, China;
    2. College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China;
    3. Zhumadian Dali Tianjun Special Vehicle Manufacturing Co., Ltd., Zhumadian 463000, China
  • Received:2024-01-19 Online:2025-05-28 Published:2025-07-11

摘要: 本文制备了亚麻纤维增强聚乳酸复合材料(FFRP)和亚麻/玄武岩混杂纤维增强聚乳酸复合材料(FBFRP),对其进行拉伸和弯曲测试,分析纤维含量及混杂纤维对复合材料力学性能的影响,结合差式扫描量热法(DSC)测试,分析复合材料的力学性能变化机理。结果表明:对于FFRP,当亚麻纤维含量超过20%时,随着纤维含量的继续增加,复合材料拉伸性能提高,并在40%时达到最高值。少量的亚麻纤维可能引起材料内部缺陷,而纤维含量过多会形成团聚现象,均会导致复合材料性能下降。对于FBFRP,加入适当含量的玄武岩纤维,复合材料力学性能增强。亚麻与玄武岩纤维含量分别为30%和9%时,材料力学性能最佳。最后基于Halpin-Tsai经验公式及包含Tsai-Wu失效准则的横向各向同性数值模拟建立混杂复合材料力学性能预测方法,以准确评估和预测不同纤维含量的混杂纤维增强复合材料的力学性能。

关键词: 亚麻纤维, 玄武岩纤维, 混杂复合材料, DSC测试, 力学性能预测

Abstract: In this paper, flax fiber reinforced polylactic acid composites (FFRP) and flax/basalt hybrid fiber reinforced polylactic acid composites (FBFRP) were made. The tensile and bending tests were carried out to analyze the effects of fiber content and hybrid fiber on the mechanical properties of the composites. Combined with differential scanning calorimetry (DSC) test, the mechanical properties of the composites were analyzed. The results show that for FFRP, when the content of flax fiber exceeds 20%, the tensile properties of the composites increase with the increase of fiber content, and reach the highest value at 40%. A small amount of flax fiber may cause internal defects of the material, and too much fiber content will form agglomeration, which will lead to a decline in the performance of the composite material. For FBFRP, the mechanical properties of the composites are enhanced by adding appropriate content of basalt fiber. When the content of flax and basalt fiber is 30% and 9% respectively, the mechanical properties of the material are the best. Finally, based on the Halpin-Tsai empirical formula and the transversely isotropic numerical simulation including the Tsai-Wu failure criterion, a prediction method for the mechanical properties of hybrid composites is established to accurately evaluate and predict the mechanical properties of hybrid fiber reinforced composites with different fiber contents.

Key words: flax fiber, basalt fiber, hybrid composites, DSC test, prediction of mechanical properties

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