亚麻纤维非织造布复合材料的研究与开发

以亚麻纤维针刺非织造布为增强材料，以不饱和聚酯树脂为基体材料，开发了亚麻纤维非织造布增强树脂基复合材料。通过对复合材料的拉伸、弯曲性能测试及断口形态扫描电镜观察，研究了亚麻纤维非织造布复合材料的综合性能。     

针刺非织造布防静电整理

介绍了防静电整理的作用机理，并通过对过滤用针刺非织造布的防静电整理试验，探讨了该整理的工艺确定及其对非织造布性能的影响。     

针刺非织造布的应用现状和前景

介绍了针刺非织造布的技术特点和应用现状 ,指出了存在的问题和产品开发动向 ,展示了未来的发展前景。     

复合针刺非织造布的结构与吸声性能研究

针刺非织造布是一种多孔结构材料,具有良好的吸声性能。其生产工艺过程简单,原料来源丰富,具有广泛的应用前景。随着人们对环境的重视,人们正积极寻求消除噪声的途径,吸声材料发挥着越来越大的作用。本文分析了针刺吸声材料的结构,并从厚度、面密度和组成纤维细度三个方面分析了其对吸声性能的影响。     

复合技术在针刺非织造布生产中的应用

通过针刺法同其他织物复合叠加,研究开发各种各样的新产品。探索针刺复合非织造布对产品质量的影响因素,针对针刺复合工艺生产过程难点、质量因素进行分析控制,提出解决办法,旨在更好地提高针刺复合产品质量,推动复合型的针刺非织造布作用在行业的应用和发展。     

涤纶针刺复合非织造布在环保吸尘黑板擦中的应用

针对传统黑板擦使用时粉尘较大的缺点,开发一种新型的涤纶针刺复合非织造布应用于黑板擦,并探讨影响其吸尘率的因素:原料、刺针、针刺深度、针刺密度。     

针刺非织造布技术与市场现状

针刺是第一代非织造布技术,近年来,国内外针刺非织造技术与设备水平在不断提升.针刺非织造布产品由于性能独特、用途广泛而有着良好的市场前景.     

废旧毛巾增强热固性复合材料的制备及拉伸性能研究

为寻求一种流程更短、可操作性更强的废旧毛巾回收再利用方法,以不同面密度的废旧毛巾,使用手糊成型法制备了废旧毛巾/不饱和聚酯树脂复合材料薄板,并对复合材料的拉伸性能进行测试。结果表明:废旧毛巾/不饱和聚酯树脂复合材料薄板成型良好,结构均匀,并具有较优的拉伸力学性能,可满足汽车内饰材料等的应用要求。     

涤纶针刺非织造布阻燃整理工艺的研究

采用Hansi Tex-2阻燃剂对涤纶针刺非织造布进行阻燃整理,通过单一变量实验对整理工艺条件进行了优化,探讨了阻燃剂浓度、焙烘温度和焙烘时间对其性能的影响;通过正交实验,探讨了整理工艺条件对涤纶针刺非织造布各性能影响的主次关系.实验结果表明:涤纶针刺非织造布采用Hansi Tex-2阻燃整理可以获得良好的阻燃效果,其...     

Investigation on filtration properties of polyester needle-punched dust filter

Abstract

In nonwoven filter fabrics, virgin polyester fibre is mostly used. Therefore, this study has been conducted with the use of virgin polyester fibre and recycled polyester fibre which is obtained after recycling of post-consumer bottle flakes to reduce the cost of filter fabric. The study is concerned to examine the effect of fabric GSM (grams/m²), needling density and depth of needle penetration on filtration efficiency and also to see the suitability of recycled polyester fibre in place of virgin polyester fibre. The study has shown that the increase in fabric weight resulted in increase in the filtration efficiency percentage. The increase in the depth of needle penetration resulted in increase in the extent of filtration efficiency initially; subsequently, it decreased. Similar trends were observed in case of both recycled polyester filter fabrics and virgin polyester filter fabrics. Though the filtration efficiency of filter fabrics prepared from virgin polyester fibre was slightly higher, the filtration efficiency of fabrics prepared from recycled polyester fibre was lower by only 2 to 3 per cent due to close difference in values of molecular weight (Mw) and polydispersity index (PDI). Therefore, looking to the filtration efficiency percentage, it may be suggested that recycled polyester fibre can be used in place of virgin polyester fibre for the manufacturing of needle-punched nonwoven filter fabrics.     

基于纺织固废制备非织造再生复合材料及其性能

采用废旧的棉、涤纶和涤棉混纺织物为主要原料,双组分聚酯(4080)纤维为黏结剂,通过织物开松、混合梳理、纤维铺网、针刺预加固以及热压成型工艺制得非织造再生复合材料.根据纤维原料的特点,探究了纤维成分、混合比例以及热压温度对复合材料表面形貌和力学性能的影响.结果表明,所制备的复合材料具有良好的力学性能,且影响力学性能的主...     

Compression creep behaviour of polyester needle-punched nonwoven fabrics

This present study deals with the compression creep behaviour of polyester needle-punched nonwoven fabrics. Polyester fibres of three different cross-sectional shapes (round, circular hollow and trilobal) have been selected for this study. An instrument has been designed and fabricated to measure the compression creep property of needle-punched fabrics. The effect of duration of compression load, fabric weight, fibre cross-sectional shapes and reinforcing material on percentage compression creep has been studied. It has been observed that initially, compression creep decreases rapidly and with increase in time, decrease of percentage creep becomes minimal. After about 8500?min of application of the same compression load, no change in compression creep is noticed. The percentage compression creep decreases with the increase in fabric weight irrespective to fibre cross-sectional shapes of polyester needle-punched nonwoven fabrics. Trilobal cross-sectional fabric shows maximum amount of percentage compression creep at all levels of fabric weight followed by round and hollow cross-sectional polyester samples, respectively. The percentage compression creep is higher in case of fabric samples made without reinforcing material compared to the samples with reinforcing material. Hollow cross-sectional polyester fibre can be successfully used as raw material for the preparation of needle-punched nonwoven fabrics with or without reinforcing material carpet or floor mats. However, normal round cross-sectional polyester fibre only with reinforcing material can be used for the said application. Compression creep values of these selected polyester needle-punched fabric samples are much lesser in comparison with commercial market polypropylene needle-punched carpet samples.     

新型针刺非织造布纳米抗菌鞋材的研究

非织造布纳米抗菌鞋材的生产过程主要有弹性针刺非织造布的生产,对弹性非织造布进行纳米抗菌整理和把纳米抗菌弹性非织造布加工成鞋材三个步骤。实验结果表明,用上述方法生产的非织造布鞋材具有优异的弹性和抗菌除臭功能,制成的鞋垫产品具有不同于传统产品的特性。     

试验条件对针刺非织造布拉伸性能的影响

非织造布拉伸试验中试验条件对测试结果有很大的影响。对试样宽度、长度、长宽比和拉伸速率等因素进行了拉伸正交试验。结果表明:试样宽度对拉伸断裂强力的影响最大,达到显著影响的程度;其次为拉伸速率,拉伸速率太小使断裂强力偏低;长宽比和长度的影响不大。     

基于随机网络理论预测针刺非织造布的垂直渗透率

为预测针刺非织造布的垂直渗透率,建立了一个基于随机网络理论的垂直渗透率预测模型,并进行了实验验证.结果表明:在材料面密度较小时模型预测值与实验值较符合,但在材料面密度较大时模型预测值略低于实验值,说明该模型适合于预测薄型针刺非织造布的垂直渗透率.     

黄麻/热熔纤维针刺非织造材料的自然降解性能研究

分析了黄麻/热熔纤维针刺非织造材料在不同自然降解环境中的降解性能差异,通过测试其暴露于户外和土壤掩埋(潮土)两种环境中不同时间段后的质量损失率、拉伸强力和纤维之间的缠结状况,研究了其随降解时间变化的降解特性.结果表明:黄麻/热熔纤维针刺非织造材料随降解时间的增加在不同的时间段表现出不同的降解速率,质量损失率增大,外貌形...     

热处理对涤纶针刺非织造布结构与性能的影响

通过对涤纶非织造布在不同温度下进行的等温结晶DSC分析,确定了热处理温度为210℃,热处理时间分别为1、2、3和4 min。对热处理前后的涤纶针刺非织造布进行力学性能、孔径及过滤效率测试,对比分析结果表明,热处理对涤纶针刺非织造布的结构与性能的改善有重要影响。经过热处理的非织造布的断裂伸长率比未经处理的非织造布低。随着热处理时间的增加,非织造布的断裂强力增大,非织造布平均孔径逐渐减小,对小粒径颗粒的过滤效率提高。对粒径≥2．0μm的颗粒的过滤效率,未经处理的非织造布为46％,处理后的非织造布提升至70％,综合过滤效率得到改善。