共查询到20条相似文献,搜索用时 93 毫秒
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现在对织物的结构和性能要求越来越高,一方面从原材料如纤维纱线的角度进行研究,另一方面对织物结构的研究也备受关注.三向织物(triaxial woven fabric,TWF)是一种各向异性差异得到改善的织物结构,其各向同性较强,力学性能较高.文章首先介绍了三向织物的结构,其次总结了三向结构织物在力学性能方面的应用进展,... 相似文献
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纺织品组织结构对织物的外观和应用性能具有普遍的适用性,织物的最终用途在很大程度上取决于所用的材料及其物理特性。因此,织物的结构参数直接决定了织物的性能。研究了不同组织结构对织物力学性能(包括拉伸性能、撕裂性能和耐磨性能)的影响,主要探讨了平纹、斜纹和方平组织对织物力学性能的影响。 相似文献
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纬编双轴向衬纱织物的发展及应用综述 总被引:1,自引:0,他引:1
纬编双轴向多层衬纱织物具有良好的力学性能和可成型性能,本文简要介绍了其结构及性能特点,并将其与经编多轴向织物进行了比较,同时介绍了该类织物的发展情况。最后介绍了几种纬编双轴向织物的具体应用实例。 相似文献
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利用真空辅助成型工艺,将机织三维角联锁结构织物与树脂结合制备机织三维角联锁结构织物复合板材.测试不同单位体积纤维含量和不同织物层数的机织三维角联锁结构织物复合板材的力学性能,并与纤维随机分布的复合板材进行比较.研究表明:机织三维角联锁结构织物复合板材的力学性能高于相同单位体积纤维含量的纤维随机分布的复合板材,且当单位体... 相似文献
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为探究针织内衣织物接触冷暖感与织物结构及力学性能的关系,采用KES-F7精密瞬间热物性测试仪测试14种针织内衣织物的最大瞬态热流量。从织物密度、织物厚度等结构参数以及织物相关力学性能等方面分析其影响因素。结果表明:织物结构越紧密,织物中静止空气含量越低,皮肤与织物接触冷感强烈;织物表面越光滑,皮肤与织物接触面积越大,接触冷感强烈;织物厚度越大,皮肤与织物接触暖感强烈。织物的结构参数影响织物中静止空气含量,从而对织物接触冷暖感产生影响。由织物最大瞬态热流量与织物力学性能参数相关性分析可知,减小织物与皮肤的接触面积,提高织物的蓬松性,有利于增强织物的接触暖感。 相似文献
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This paper presents a study conducted on the thermal and mechanical properties of basalt hybrid and nonhybrid woven structures. While designing fabrics for various industrial textile applications, the knowledge about the mechanical properties is very important. Strength, modulus, and elongation are the most important performance properties of fabrics governing their performance in high-end applications. The thermal properties of the fabrics, i.e. thermal resistance, thermal conductivity were also studied vis-a-vis physiological behavior. In this work, state-of-the-art evaluation techniques are used, which provide reliable nondestructive measurement of thermal conductivity, thermal resistance, water vapor permeability, and air permeability of fabrics. The effect of structure and composition on the above-mentioned properties of such nonstandard fabrics has been investigated in detail. The results of the study show that effect of fiber composition, weave, and geometrical parameters on thermal and mechanical properties is significant in basalt hybrid fabrics. 相似文献
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The present paper focuses on geometric and micromechanical modelling of 3D orthogonal fabrics for composite applications and employs meso-finite element (FE) modelling for it. FE modelling of textile composites is a powerful tool for the homogenisation of mechanical properties, study of stress–strain fields inside the unit cell, determination of damage initiation conditions and sites and simulation of damage development and associated deterioration of the homogenised mechanical properties of the composite. Meso-FE can be considered as a part of the micro-meso–macro-multi-level modelling process, with micromodels (fibres in the matrix) providing material properties for homogenised impregnated yarns and fibrous plies, and macromodel (structural analysis) using results of meso-homogenisation. 相似文献
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The objective of this two part paper is to present a method of enhancing accuracy of fabric drape simulation using commercially available software. In Part I, we report results of an investigation of drape variability for a set of fabrics having varied mechanical properties, an essential step in defining accuracy for drape simulation. Results illustrate that fabric drape behaviour is highly variable and thus provide no single drape configuration to target with simulation. Development of a revolutionary method for capturing drape of actual fabrics and measuring that drape in a virtual three-dimensional (3D) environment is also presented. The method allows identical drape measurement processes to be implemented for actual and simulated fabrics and provides opportunity for use of additional measures to assess fabric drape in three dimensions. The accomplishments presented in this paper are utilized to demonstrate, in Part II, development of a relationship that enhances realism of particle model simulations generated using the commercial drape simulation software. 相似文献
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Three-dimensional (3D) fabrics are the focus of recent developments due to their versatile physical, structural attributes, and application scopes. These fabrics can be manufactured in various architectures which offer a great deal of opportunity to modify the weight, physical and mechanical properties, and cost of the various products. The potential usage of 3D woven fabrics in the ballistic protection applications was the main motivating factor of this research work. Thus, interest has been focused to investigate the structure and properties of 3D woven orthogonal fabrics with aramid fiber and PBO fiber in comparison with 2D fabrics. The investigation of ballistic properties of these fabrics showed that 3D woven fabrics are superior in terms of breaking load and energy absorption as compared to those of 2D woven fabrics. The specific ultimate tensile strength of 3D woven fabric was observed to be lower than 2D fabrics, which may be due to less number of load bearing yarns in the loading direction. The crimp percentages of the load bearing tows in 3D fabric are very less than that of 2D fabrics. Owing to the higher values of work at peak and load at peak, in knife penetration test, it is revealed that 3D fabrics offer better protection than 2D fabrics. 相似文献
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硫化染料因价格低廉、色牢度好,一直是纤维素纤维的主要染料之一,对染深色尤其重要。然而硫化染料存在诸多缺点,抗氧化能力差是最突出的问题之一。硫化染料染色的织物,经含氧漂剂洗衣粉洗涤后,颜色变化很大,限制了其在工业界的广泛应用。综述了传统的改善硫化染色织物抗氧化性能的方法以及本课题组在提高硫化染料耐氧漂性能方面的工作。在传统的硫化染料染色织物后整理技术中,经耐久压烫整理的染色织物,抗氧漂性能得到了有限的提高,而织物的机械性能受到一定破坏且手感变差;经去垢剂整理的染色织物,其氧漂时抗着色性提高了0.5~1级,但该整理方法的成本较高,且对织物的其它性能有一定的负面影响;改善染料上染工艺法虽能够改善硫化染色织物的耐氧漂性能,但适用范围和效果有限;本课题组提出的醋酸镧法,可使硫化染色织物的耐氧漂性能提高50%。 相似文献
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为拓展静电纺纳米纤维的应用领域,提高静电纺纳米纤维的力学性能,对国内外近期静电纺纳米纤维纱线的研究进展进行了综述。按照加捻方式的不同,将纤维加捻方法分为流场加捻、电场加捻和机械加捻,详细介绍了几种加捻方法,并对这些方法制备的纱线的性能参数以及方法的优劣进行了对比;讨论了静电纺丝工艺参数对纱线力学性能的影响,并介绍了几种提高纳米纤维纱线力学性能的方法;对静电纺纳米纤维纱线在智能化织物、生物工程以及电子器件领域的应用进行了总结;最后针对静电纺纳米纤维纱线中存在的问题以及未来的发展趋势进行了分析。 相似文献
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为探究Lyocell纤维原纤化的生成条件,拓展高原纤化Lyocell纤维在过滤织物、覆盖面料及吸收衬垫等领域的应用,以次氯酸钠(NaClO)溶液为氧化剂,采用汽蒸处理方法制备了不同原纤化程度的Lyocell纤维,研究了NaClO 溶液质量分数和热处理时间对Lyocell纤维结构及性能的影响。结果表明:在本文实验范围内,当NaClO 溶液质量分数(有效Cl-质量分数)为1.50%、热处理时间为180 s时,Lyocell纤维表面微原纤分布均匀、原纤化程度最为明显,纤维保持了较强的吸湿能力,较未处理前升高了135.8%,其干态断裂强度为3.69 cN/dtex,断裂伸长率为11.3%,基本保持了后续应用领域要求的较高力学性能。该方案实施难度小,效率高,有利于高原纤化Lyocell纤维在水刺织物、混纺制造纺织用品等领域的应用和工业化推广。 相似文献