天然蚕丝/氨纶包覆参数对包覆纱力学性能的影响  

Influence of spinning parameters on mechanical properties of silk/spandex covered yarn

作　　者：万玥 尚欣欣 高晶[1,2] 劳继红[1,2] 王璐[1,2] 关国平[1,2] WAN Yue;SHANG Xinxin;GAO Jing;LAO Jihong;WANG Lu;GUAN Guoping(College of Textiles,Ministry of Education,Donghua University,Shanghai,China;Key Laboratory of Textile Science&Technology,Ministry of Education,Donghua University,Shanghai,China)

机构地区：[1]东华大学纺织学院,上海 [2]东华大学纺织面料技术教育部重点实验室,上海

出　　处：《东华大学学报（自然科学版）》2024年第3期69-77,共9页Journal of Donghua University(Natural Science)

基　　金：高等学校学科创新引智计划(BP0719035)。

摘　　要：研究包覆纱纺纱参数与力学性能间的关系是精确调控压力衣的服装压的基础。设计L_(9)(3^(4))正交试验,研究纺纱参数(捻度比、内捻度、牵伸倍数)对力学指标(应力松弛率、弹性回复率、断裂强度)的影响并评选最优组合。采用二次通用旋转组合设计分析纺纱参数与纱线模量的关系,并建立数学预测模型。结果表明:影响应力松弛率和断裂强度的因素依次为捻度比>内捻度>牵伸倍数;影响弹性回复率的因素依次为牵伸倍数>内捻度>捻度比。排队评分法得出,牵伸倍数2.8、内捻度1600捻/m、捻度比70%时纱线的综合性能最优。初始模量随捻度和牵伸倍数的增大而先减小后增大,随捻度比的增大而增大;拉伸模量随牵伸倍数的增大而先减小后增大,随内捻度和捻度比的增大而增大。The study of the relationship between spinning parameters and mechanical properties of covered yarn is the basis for precise regulation of garment pressure.L_(9)(3^(4))orthogonal tests were designed to study the influence of spinning parameters(twist ratio,internal twist,stretch ratio)on mechanical indexes(stress relaxation rate,elastic recovery rate,breaking strength)and to select the optimal combination.The relationship between spinning parameters and yarn modulus was analyzed by quadratic general rotation combination design.A mathematical prediction model was established.The results show that the factors affecting stress relaxation rate and breaking strength are twist ratio>internal twist>stretch ratio in order;the factors affecting elastic recovery rate are stretch ratio>internal twist>twist ratio in order.The ranking scoring method resulted in the best overall performance of the yarn with a stretch ratio of 2.8,an internal twist of 1600 twist/m and a twist ratio of 70%.The initial modulus decreases and then increases with the increase of twist and stretch ratio,and increases with the increase of twist ratio.The tensile modulus decreases and then increases with the increase of stretch ratio,and increases with the increase of internal twist and twist ratio.

关 键 词：包覆纱 力学性能 蚕丝 正交试验 旋转组合设计 

分 类 号：TS104[轻工技术与工程—纺织工程]