基于环锭纺的三组分负泊松比纱制备及其性能  

Preparation and performance of three-component helical auxetic yarn based on ring spun

作　　者：郭晨宇 蒋云 杨瑞华 GUO Chenyu;JIANG Yun;YANG Ruihua(College of Textile Science and Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China)

机构地区：[1]江南大学纺织科学与工程学院,江苏无锡214122

出　　处：《纺织学报》2024年第10期55-63,共9页Journal of Textile Research

基　　金：国家自然科学基金面上项目(52273034);江苏省自然科学基金面上项目(BK20181350)。

摘　　要：为扩大螺旋包缠结构的负泊松比纱的应用范围,在传统双长丝负泊松比纱基础上增加短纤维组分,通过环锭纺复合纱生产技术,设计了新型三组分螺旋包缠结构和成形方法。以棉粗纱、涤纶长丝、氨纶长丝为纺纱原料,将棉纤维和涤纶长丝包缠在氨纶芯丝上,得到基于螺旋包缠结构的三组分负泊松比纱。将其与双长丝负泊松比纱进行对比分析,并进一步讨论纱线结构对负泊松比效果的影响。借助电子单纱强力仪和图像连续采集装置,对纱线泊松比性能进行测量和分析。实验结果表明:三组分负泊松比纱与双长丝负泊松比纱的最大负泊松比值相近,同时三组分负泊松比纱在较长应变下保持相对稳定的负泊松比效果;其最大的负泊松比值可达-4.66。Objective Auxetic components can be used to create functional auxetic composite materials.The helical auxetic yarn(HAY)belongs to the group of auxetic reinforcement materials.Traditional auxetic yarns,made from filaments with a helical structure,often face issues like component slippage that can reduce yarn stability.They also lack the natural crimp and soft texture of staple fibers,which restricts their surface properties and applications.To address these challenges,this paper presents an innovative production method for helical auxetic yarns that incorporates staple fibers into the spiral wrapping structure.The aim is to enhance the yarn′s auxetic performance and expand its range of applications.Method Composite yarn was spun on a modified ring spinning machine to create a helical auxetic yarn based on the wrapping structure,with cotton and polyester filaments wrapped around a spandex filament.Besides,the double-filament helical auxetic yarn without cotton was also produced.The auxetic performance characteristics of these two types of yarns were analyzed and compared.Based on the spinning parameters,the effect of the yarn construction parameters on the negative Poisson′s ratio was further investigated.Results In this study,the negative Poisson′s ratio of the new developed three-component and conventional two-component helical auxetic yarns was compared and analyzed.The maximum negative Poisson′s ratios of the two yarns were similar,both less than-2,and the negative Poisson′s ratio of two-component yarn was slightly better.In addition,the three-component helical auxetic yarn achieved a maximum negative Poisson′s ratio at less strain compared with two-component yarn.Furthermore,after achieving the best negative Poisson′s ratio,the Poisson′s ratio of the three-component helical auxetic yarn was maintained below-0.5 with a tensile strain of 5%to 15%.However,after the two-component yarn reached the maximum negative Poisson′s ratio,the negative Poisson′s ratio effect of the yarn showed the weaking

关 键 词：负泊松比纱线 螺旋包缠结构 复合纱 纱线结构 工艺参数 

分 类 号：TS106.4[轻工技术与工程—纺织工程]