混杂椰壳-大麻/聚丙烯复合材料的力学性能影响

《复合材料学报》优先在线发表论文。

摘  要：采用正交分析法，讨论混杂工艺和复合工艺对混杂椰壳-大麻增强聚丙烯复合材料（C-H/PP）力学性能的影响。结果表明，混杂处理后的C-H/PP的力学性能均比相同复合工艺条件下的大麻/聚丙烯（H/PP）复合材料有较大程度的改善。椰壳纤维与大麻纤维质量比对混杂C-H/PP复合材料力学性能影响最大，且混杂C-H/PP复合材料的力学性能随椰壳纤维含量的增加而线性增大；混杂针刺毡中聚丙烯(PP)纤维质量分数对混杂C-H/PP复合材料的抗弯强度影响较大，最初混杂C-H/PP复合材料的抗弯强度随着PP纤维质量分数的增加而减小，随后又随着PP纤维质量分数的增加有一定程度的增大，而混杂C-H/PP复合材料的抗拉强度则随着PP纤维质量分数的增大而线性减小；混杂C-H/PP复合材料的力学性能随复合层压温度的升高呈下降趋势。

关键词：混杂工艺；椰壳纤维；大麻纤维；复合材料；力学性能

Abstract: The influence of the hybrid process and thec omposite process on the mechanical properties of hybrid coir and hemp reinforced polypropylene (C-H/PP) composites was discussed by orthogonal analysis.The results show that the mechanical properties of hybrid C-H/PP composites after hybrid treatment are greatly improved than that of hemp/polypropylene(H/PP) composites under the same composite conditions. The mass ratio between coir fiber and hemp fiber has the greatest influence on the mechanical properties of hybrid C-H/PP composites, and the mechanical properties of the hybrid C-H/PP composites increased linearly with the increase of the coir fiber content; the mass fraction of polypropylene (PP) fiber in reinforced needle-punched felt has great influence on the flexural strength of the hybrid C-H/PP composites. The bending strength of the hybrid C-H/PP composites decreases with the increase of the PP fiber content on the initial, and then increases with the increase of PP fiber content, while the tensile strength of the hybrid C-H/PP composites decreases linearly with the increases of PP fiber. The mechanical properties of the hybrid C-H/PP composites decrease with the increase of the composite lamination temperature.

Keywords: hybrid fiber composites; coir fiber; hemp fiber; hybrid process; mechanical property

作者：杨莉等，安徽工程大学 纺织服装学院， 芜湖

通讯作者：杨莉，安徽工程大学 纺织服装学院， 芜湖

全文详见中国知网学术期刊优先数字出版。