热定型对氨纶纤维结构性能的影响  

Effect of Heat Setting on Structure and Properties of Spandex Fibers

作　　者：樊家良 杨从登 费长书 汪涛[1] 张同华[1] 冉瑞龙[1] FAN Jia-liang;YANG Cong-deng;FEI Chang-shu;WANG Tao;ZHANG Tong-hua;RAN Rui-long(College of Sericulture.Textile and Biomass Science,Southwest University,Chongqing 400715,China;Huafeng Chongqing Spandex Co.,Ltd.,Chongqing 408017,China)

机构地区：[1]西南大学蚕桑纺织与生物质科学学院,重庆400715 [2]华峰重庆氨纶有限公司,重庆408017

出　　处：《纺织科技进展》2021年第6期28-31,共4页Progress in Textile Science & Technology

基　　金：重庆市技术创新与应用发展专项重点项目(cstc2019jscx-fxydX0056)。

摘　　要：涤/氨织物需要在高温下热定型以改善布面平整性,而高温必然对氨纶纤维结构和性能产生影响。对氨纶纤维进行180℃热定型处理,测试分析了纤维分子结构及力学性能。结果表明,氨纶纤维经180℃热定型较短时间,其分子结构影响不大,断裂强力有一定提高,但耐疲劳性并没有改善。Polyester/spandex fabrics need to be heat set at high temperature to improve the surface smoothness,but high tempera­ture would inevitably affect the structure and properties of spandex fibers.Spandex fibers were heat set at 180,and its molecular structure and mechanical properties were tested and analyzed.The results showed that the molecular structure of spandex fiber had lit­tle effect after heat setting at 180 for a short time.The breaking strength was enhanced,however,the fatigue resistance was not improved.

关 键 词：氨纶纤维 热定型 力学性能 分子结构 

分 类 号：TS151.9[轻工技术与工程—纺织材料与纺织品设计]