反复应力松弛下黄麻织物/聚乙烯复合材料的变形特性  

Deformation Characteristics of Jute Fabric/Polyethylene Composite Material under Cyclic Stress Relaxation

作　　者：汪泽幸[1] 吴波 李帅 何斌[1] WANG Ze-xing;WU Bo;LI Shuai;HE Bing(College of Textile and Fashion,Hunan Institute of Engineering,Xiangtan 411104,China)

机构地区：[1]湖南工程学院纺织服装学院,湘潭411104

出　　处：《湖南工程学院学报（自然科学版）》2020年第3期63-67,83,共6页Journal of Hunan Institute of Engineering(Natural Science Edition)

基　　金：湖南省教育厅优秀青年项目(16B059);湖南省自然科学基金项目(2016JJ6030)。

摘　　要：基于热压法制备黄麻织物/聚乙烯复合材料,研究了其在循环应力松弛下的变形特性.结果表明,循环应力松弛条件下,黄麻织物/聚乙烯复合材料的应力-应变曲线相似,其变形机理一致.随着应力松弛时间和循环峰值应力的增加,试样的最大应变增加,而最小应变随之减少,且最大与最小应变均随循环次数的增加而增加.随着应力松弛时间增加,各循环的加载应变减少,而残余应变增加;各循环的加载应变与残余应变均随循环峰值应力的增加而增加;循环次数增加,各循环的加载应变与残余应变均减少.相对残余变形指数随应力松弛时间和循环峰值应力的增加而增加,随循环次数增加而减少.Based on the jute fabric/polyethylene composite prepared by hot-pressing method,the deformation characteristics under cyclic stress relaxation are investigated. The results show that the stress-strain curve of jute fabric/polyethylene composite is similar under cyclic stress relaxation,and its deformation mechanism is the same. With the increase of stress relaxation time and cyclic peak stress,the maximum strain increases,while the minimum strain decreases. The maximum strain and minimum strain increase with cyclic numbers.With the increase of stress relaxation time,the loading strain of each cycle decreases,while the residual strain increases. Loading strain and the residual strain of each cycle increase with the cyclic peak stress. The loading strain and the residual strain of each cycle decrease with cycle number. The relative residual deformation index increases with the increase of stress relaxation time and cyclic peak stress,and decreases with cyclic number.

关 键 词：黄麻织物 聚乙烯 复合材料 循环应力松弛 变形 

分 类 号：TS101.923[轻工技术与工程—纺织工程] TB332[轻工技术与工程—纺织科学与工程]