超低温处理改性对对位芳纶纤维表面摩擦性能的影响  

Influence of ultra-low temperature treatment on the surface friction properties of para-aramid fibers

作　　者：杨陈[1,2] 林燕萍 王晨露[3] 孙敏 王婧昕[5] Yang Chen;Lin Yanping;Wang Chenlu;Sun Min;Wang Jingxin(Jiangxi Institute of Fashion Technology,Nanchang 330201;Jiangxi Centre for Modern Apparel Engineering and Technology,Nanchang 330201;Shaoxing University,Shaoxing 312000;Chongqing City Management College,Chongqing 401331;Xuzhou University of Technology,Xuzhou 221018)

机构地区：[1]江西服装学院,南昌330201 [2]江西省现代服装工程技术研究中心,南昌330201 [3]绍兴文理学院,绍兴312000 [4]重庆城市管理职业学院,重庆401331 [5]徐州工程学院,徐州221018

出　　处：《化工新型材料》2022年第11期87-89,94,共4页New Chemical Materials

基　　金：江西省教育厅科学技术研究项目(GJJ202405)。

摘　　要：探讨了超低温处理对位芳纶纤维改善纤维表面摩擦因数的可行性。结果表明:对位芳纶纤维经过液氮超低温处理,其特性黏度、分子量、聚合度、结晶度和断裂强度均随超低温处理时间的增加出现不同程度的下降,纤维表面摩擦因数(静态、动态)随超低温处理时间的增加出现不同程度的上升,纤维的分子结构保持不变,在1~2h之间时,纤维表面摩擦因数取得最值,断裂强度仅下降20%左右,验证了超低温处理可提高对位芳纶纤维表面摩擦因数。The feasibility of treating para-aramid fiber with ultra-low temperature to improve the friction coefficient of fiber surface was discussed.The tests results showed that,after being treated with liquid nitrogen temperature,the intrinsic viscosity,molecular weight,degree of polymerization,crystallinity and tensile strength of the para aramid fibers were all decreased with the increasing of the cryogenic treatment time in varying degrees,while the fiber surface friction factor(static and dynamic)appeared varying degree rising.The molecular structure of the fiber remained the same before and after processing.When the temperature kept with 1~2h,the friction coefficient of the fiber surface reached to its maximum value,and the fracture strength only decreased by about 20%,which verified that it was feasible to improve the friction coefficient of the fiber surface by ultra-low temperature treatment.

关 键 词：超低温 对位芳纶 分子结构 断裂强度 纤维表面摩擦因数 

分 类 号：TS156[轻工技术与工程—纺织材料与纺织品设计]