玻璃纤维衬经衬纬纬编管状织物的制备及其拉伸性能  

Preparation and tensile properties of glass fiber weft-knitted biaxial tubular fabrics

作　　者：周濛濛 蒋高明[1] ZHOU Mengmeng;JIANG Gaoming(Engineering Research Center for Knitting Technology,Ministry of Education,Jiangnan University,Wuxi,Jiangsu 214122,China)

机构地区：[1]江南大学针织技术教育部工程研究中心,江苏无锡214122

出　　处：《纺织学报》2023年第7期132-140,共9页Journal of Textile Research

基　　金：泰山产业领军人才项目(20180224);江苏省研究生科研与实践创新计划项目(KYCX22_2353)。

摘　　要：为获得结构稳定且紧密的玻璃纤维衬经衬纬纬编管状(WKBT)织物,探讨了机上及机下因地组织捆绑线圈织缩造成衬纱弯曲起拱的衬纱露丝问题。采用添纱工艺及扩布装置制备了4种地组织结构及捆绑纱种类不同的WKBT织物,并分析了其外观形貌、横纵密及拉伸性能。结果表明:添纱组织可改善脱圈后捆绑线圈周向的织缩,但衬纱起拱现象仍存在;扩布装置的应用解决了衬纱起拱的问题,结合添纱工艺可制备结构稳定且紧密的WKBT织物;4种WKBT织物经扩幅后衬纱仍具有较高的拉伸模量和衬纱强力利用率,证明本文方法在消除织缩的同时,可制备性能优异的WKBT织物。Objective Glass fiber is an important material for the preparation of tubular textile reinforcements because of its high strength,high modulus and high cost performance,but its brittleness,small fracture elongation and poor torsion resistance limit its textile processability.In order to obtain glass fiber weft-knitted biaxial tubular(WKBT)fabrics with stable and compact structure to meet industrial requirement for integrated tubular fabric formation with high strength,high modulus and low ductility,glass fiber WKBT fabric with warp and weft lining yarns constructed using 1×1 rib structure was designed and discussed,and the tensile properties of WKBT fabric were evaluated.Method Four types of WKBT fabrics,i.e.,PET1-GF-GF,PTFE-GF-GF,PETFB 2-PET1-GF-GF,and PTFEFB-PTFE-GF-GF,with different stitch structures and binding yarns were prepared by plaiting technology and spreading device,and their appearance morphology,transverse and longitudinal density and tensile properties were analyzed.The shrinkage was introduced to discuss the dimensional stability of WKBT fabric influenced by the stitch structure and the binding yarns.The strength efficiency of lining yarn was defined to describe the influence of different stitch structure and binding yarns on the strength efficiency of glass fiber.Results According to the definition of"binding yarn-warp yarn-weft yarn",three types of WKBT fabrics were prepared by different binding yarn and insertion yarns,which were PET1-PET1-PET1、PET1-GF-GF、PTFE-GF-GF,respectively.The WKBT fabric was stretched in the 0°direction on the machine,and the diameter of the WKBT fabric was approximately equal to the diameter of the weft yarn along the circumferential direction of the fabric.Under the pulling force,the sinker loop transfer to leg causing loops to shrink and densely arranged along the circumferential direction,and the diameter of the WKBT fabric becomes smaller.The weft lining yarns were bent and arched on the front of the fabric under the shrinkage force of the adjacent binding loo

关 键 词：纬编衬经衬纬管状织物 扩布装置 织缩 拉伸性能 衬纱强力利用率 

分 类 号：TS183.4[轻工技术与工程—纺织材料与纺织品设计] TS184.4[轻工技术与工程—纺织科学与工程]