共查询到20条相似文献,搜索用时 140 毫秒
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为织造在特殊环境中具有耐久性的纺织品,以聚全氟乙丙烯(FEP)纤维为原料,经加捻、合股工艺制备FEP纱线,通过半自动织布机织造出幅宽为250 mm、厚度为0.51 mm的FEP平纹织物。借助电子拉力试验机、动态接触角测定仪、织物透气量仪、织物透湿量仪、织物耐磨仪、紫外冷凝老化试验箱、差示扫描量热分析仪、X射线衍射仪、傅里叶红外光谱仪等对FEP纱线及其织物性能进行分析表征。结果表明:FEP纱线力学性能优良且具有疏水性;FEP织物具有较好力学性能,耐高温且耐化学试剂、耐老化性能优异,经酸碱、有机溶剂处理后织物的热性能、结晶结构、化学结构及力学性能均未发生明显变化;经紫外光辐照处理,织物力学性能未发生明显变化,表明FEP织物可适用于特殊环境。 相似文献
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为实现乙烯-四氟乙烯(ETFE)共聚纤维工业规模开发,通过熔融纺丝法制备了ETFE共聚初生纤维,并将初生纤维在150℃条件下通过电子拉伸试验机进行定长拉伸,得到拉伸比为100%和200%的纤维。利用热重分析仪、差示扫描量热分析仪、X射线衍射仪、动态热机械分析仪和电子拉伸机等分别测试了纤维的热性能、结晶结构、力学性能。测试得出:ETFE共聚热分解温度约为477℃;不同拉伸倍率纤维的熔融温度均保持在259℃左右;拉伸200%纤维断裂强度约为160 MPa,是初生纤维的3倍。结果表明:随拉伸倍率的提高,ETFE共聚纤维玻璃化转变温度提高9℃,结晶度和晶区取向度分别提高了10.2%和5.5%;经浓硫酸、氢氧化钠溶液、丙酮和次氯酸钠试剂处理后各纤维断裂强度均无明显变化,表现出良好的耐化学试剂性能。 相似文献
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基于对台湾金富邦纤维科技有限公司产生的8μm、40mm、21s不锈钢阻燃粘胶纤维的基本力学性能试验研究,运用现代棉纺织生产工艺,纺制出含量为30%的不锈钢纤维混纺纱线。在小样机上制织织物后,分析了不锈钢纤维混纺织物吸湿、保温及导电性能。得到如下结论:不锈钢纤维混纺纱线织成的织物具有较好的导热性能,不锈钢纤维含量越高,织物的导电性能越好;经、纬向均含有不锈钢纤维的织物静电屏蔽性能较单向好。 相似文献
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为研究以碳纳米管(CNT)为传感元件的智能织物的传感性能,采用嵌入方式将碳纳米管纱线与机织物结合,测试碳纳米管纱线的电阻变化率与机织物的应变关系。结果表明:实验所用的CNT 纱线的传感系数为1.02,采用5%的聚乙烯醇(PVA)溶液对其进行复合后的CNT/PVA纱线其传感系数提高到了1.43;将CNT 纱线与CNT/PVA 纱线分别沿经向和纬向嵌入平纹织物,均沿经向施加3%的应变,CNT/PVA 纱线传感系数经向为0.67,纬向为0.27,CNT 纱线传感系数经向为0.33,纬向为0.11。改变CNT/PVA 纱线嵌入平纹的经浮长,浮长越长时织物的传感系数越高,连续6 个经浮长对应的传感系数最高为0.81;改变CNT/PVA 纱线经向嵌入平纹的长度,在一定范围内,嵌入的纱线长度越长织物的传感系数越高,将3cm 的CNT/PVA 纱线经向嵌入平纹织物经向拉伸7%时对应的传感系数约为1.07。 相似文献
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松弛收缩率对于涤粘仿毛织物具有重要作用,根据已经开发的20块不同种类的涤纶、粘胶仿毛织物,通过分析织物的平方米克重、经纬纱线密度、经纬纱捻度、经纬纱缩率以及织物的经纬密度,然后利用FAST-4织物风格仪测试织物经纬向的松弛收缩率,利用SPSS软件进行多元回归分析,并且根据p检验和t检验法则分别判断多元回归方程与各个参数的显著性,分析影响仿毛织物经纬向松弛收缩率的因素。 相似文献
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为从织物自身组织结构方面优化纯棉织物的折皱性,首先设计织物组织结构参数并制备织物,利用数字式织物折皱弹性仪测得织物的折皱回复角。在此基础上,建立纯棉织物经、纬向和总折皱回复角与织物组织结构参数(包括经纬纱线密度、经纬纱捻度、经纬向密度)之间的线性回归方程;同时分析织物折皱回复角与各组织结构参数间的相关性。结果表明:回归方程的计算值与折皱回复角实测值绝对误差不超过0.61°,回归方程具有较高的实用性;经纬纱捻度、线密度对纯棉织物的折皱回复性影响最大,可通过提高经纬纱捻度、降低经纬纱线密度来改善纯棉织物的抗皱性。 相似文献
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研究了涤粘仿毛织物在小应力作用下的回弹性,根据分析20块不同种类的涤纶、粘胶仿毛织物的面积质量、经纬纱线密度、经纬纱线捻度、经纬纱线缩率以及织物的经纬密度,利用FAST-3织物风格仪测试织物经纬向的弹性伸长,利用SPSS软件进行多元回归分析,并根据P检验和t检验法则分别判断多元回归方程与各个参数的显著性,分析影响仿毛织物回弹性的因素。 相似文献
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为研究聚酯(PET)长丝/棉复合纱斜纹织物的保形性及服用性能,利用PET长丝与纯棉纱开发了3种线密度为9.8 tex的纱线,并以二上二下斜纹组织织造了4种织物。对织物进行了折皱回复性、免烫性、尺寸稳定性、悬垂性等保形性能,强伸性、拉伸弹性、顶破性等抗变形性测试,以及手感风格、透湿性、透气性等服用性能测试。对比分析了纯棉纱织物与复合纱织物的保形性与服用性能。结果表明:PET长丝/棉复合纱可改善纯棉织物的折皱回复性、悬垂性,提高免烫等级,同时又不影响织物的服用性能;包芯纱织物比包缠纱织物有更好的保形性,更高的免烫等级,是免烫衬衫面料的理想选择。 相似文献
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为研究聚酰亚胺纤维作为纺织服用纤维的热舒适性能,分别以聚酰亚胺纤维和聚酰亚胺针织物为研究对象,通过热重分析仪研究纤维的热力学特征,并对纤维的耐热性能进行测试,同时讨论织物结构对聚酰亚胺针织物阻燃性、保暖性及透气性能的影响。结果表明:可服用聚酰亚胺纤维有较好的耐热性能,在570℃左右开始发生热分解,在200℃下强度损失率较低,处理1.5 h后纤维强度仍可保持原纤维强度的80%左右;聚酰亚胺纤维织物有较好的阻燃性能,其极限氧指数均大于45%,且随织物面密度的增加,阻燃性增强;聚酰亚胺织物的保暖性受织物结构影响较大,对于结构稀松的织物,随透气量的增加保暖性不断下降,同时还受织物厚度的影响,在一定条件下,厚度对织物保暖性的影响起主导作用。 相似文献
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The purpose of this study is to investigate the physical and mechanical properties of fabrics knitted from textured polyester multifilament yarns with various numbers of filaments in the yarn cross-section. In this regard, some of the characteristics of yarns and fabrics, knitted from the mentioned yarns, were measured and analysed. Analysis of results showed that increasing the number of filaments in the yarn cross-section leads to a decrease in yarn’s diameter and abrasion resistance. Moreover, examining the properties of the weft-knitted fabrics revealed that increasing the number of filaments causes a rising trend in the compressibility and bursting strength of fabric. On the contrary, the thickness, air permeability and abrasion resistance decreases due to a growth in the number of filaments. A decline in the strength and elongation of yarns and fabrics produced from them is also another result of increasing the number of filaments in the yarn cross section. 相似文献
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Fabric woven from wool/polyester (PES) Murata vortex spun (MVS) blend yarn is a commercially viable proposition particularly on the basis of advantageous wear-resistant properties, compared with fabric made from traditional worsted ring-spun yarn. However, in some early industrial trials with fabric made from 45/55-blend wool/PES MVS yarn, significantly greater relaxation shrinkage was found relative to comparable worsted ring-spun fabric. It was noted at the time that the amount of relaxation shrinkage in MVS fabric could be reduced to a large extent by using steamed MVS yarn. In this study, the extent of variations in the dimensional and mechanical properties of fabric samples woven from a combination of steamed and unsteamed MVS yarn and equivalent worsted ring-spun yarn is examined. In general, greater hygral expansion and relaxation shrinkage were found in loom-state fabrics made from unsteamed MVS yarns, whereas the fabric made from steamed MVS and ring-spun yarns gave relatively low levels of relaxation shrinkage and hygral expansion. Permanent setting of fabrics, by pressure steaming, was found to be more effective than yarn pre-steaming in reducing relaxation shrinkage levels of fabrics made from unsteamed MVS yarn. After pressure steaming, all fabrics showed similar levels of relaxation shrinkage and hygral expansion. Permanent setting of the fabrics, by pressure steaming, resulted in similar levels of relaxation shrinkage and hygral expansion, irrespective of the yarn production method; relaxation shrinkage fell to around 1% and hygral expansion increased by about 1%, relative to the loom-state samples. MVS fabrics were relatively heavier and fuller and had a firmer handle than the worsted ring-spun fabrics, reflecting the greater fabric weight, thickness and shear rigidity measured on these fabrics. These attributes are associated with different structures of the worsted ring-spun and MVS yarns used to make the fabrics. 相似文献