医用除臭非织造布的制备及其性能研究北大核心

为去除造口袋使用过程中产生的异味和臭气,将具有高比表面积和多孔结构的活性炭(AC)浸轧于棉纤维表面,利用活性炭优异的吸附性,制备一种可用于造口袋的具有除臭功能的非织造布。对不同质量分数活性炭负载棉非织造布的形貌、化学结构、热性能、透气性、力学性能和除臭性能进行测试和表征。负载前后非织造布扫描电镜(SEM)照片以及热重分析(TGA)结果均证实活性炭成功负载到棉纤维表面,随着活性炭质量分数的增加,非织造布的透气性略有下降,但不影响棉非织造布的力学性能。除臭实验结果表明,试样对氨气和醋酸的除臭率均大于80%,当负载活性炭质量分数为5.3%时,对氨气和醋酸的除臭率达到最大,分别为94.8%和94.1%,均符合JEC 301—2013《SEK标志纤维制品认证基准》标准规定,该活性炭负载棉非织造可与其他医用材料结合应用于造口袋除臭。     

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。     

针刺非织造布与机织物复合材料的吸声性能研究

研究针刺非织造布与机织物复合材料的吸声性能。以3种涤纶针刺非织造布和1种机织物为试样,测试了各试样的厚度和容重,并计算了非织造布的孔隙率;采用驻波法测试各复合材料的吸声系数;探讨了复合方式、非织造布容重、非织造布厚度对复合材料吸声性能的影响;对比分析了性能较好的复合材料与玻纤吸声板的吸声性能。结果表明:以机织物为表面层、针刺非织造布为后背层的复合材料吸声效果较好,对不同频率有不同吸声性能,吸声性能优于玻纤吸声板。认为:以机织物为表面层、针刺非织造布为后背层的复合材料适用于室内装潢、汽车及高铁等中的吸声内饰。     

柔软型纺粘复合非织造布的制备与性能

制备了柔软型纺粘复合非织造布,并测试该非织造布的主要性能.结果 显示,研究制备的纺粘复合非织造布的拉伸力学性能较好,具有优良的延展性能;经过柔软整理的纺粘复合非织造布的抗弯刚度大大低于未经柔软整理的纺粘复合非织造布,柔软度明显优于后者,适合医疗卫生多种场合的应用.     

电子束辐照接枝法提高非织造布亲水性能研究

利用地那米型电子加速器在非织造布表面辐射接枝丙烯酸单体,提高非织造布的亲水性能。研讨辐射接枝率的高低对于非织造布亲水性能的影响。利用扫描电子显微镜(SEM)观察非织造布试样辐照接枝前后的表面形貌,进而对比接枝前后试样表面形貌的变化。采用接触角来表征非织造布表面亲水性能。采用保水率来表征非织造布亲水性。     

非织造布滤筒除尘器的结构与应用

介绍了非织造布滤筒除尘器的产品结构及特点,指出了根据各种除尘器工况条件的要求,如何正确选用性能不同的非织造布滤筒,说明了非织造布滤筒除尘器性能优良,具有广阔的发展前景.     

氧化石墨烯-壳聚糖改性丙纶非织造布抗菌性能研究

为提高丙纶非织造布的抗菌性能,拓展丙纶非织造布的应用范围,将氧化石墨烯、壳聚糖应用于丙纶非织造布.利用静电吸附作用,通过层层自组装将壳聚糖分子与氧化石墨烯分子整理到丙纶非织造布的表面,然后对改性丙纶非织造布进行红外光谱、染色深度、抗菌性能及拉伸性能测试.结果 表明:壳聚糖与氧化石墨烯能在丙纶非织造布表面进行有效的自组装整理;抗菌测试数据表明,经过8次自组装改性整理的丙纶非织造布具有优异的抗菌性能,且抗菌水洗稳定性良好;自组装改性整理后的丙纶非织造布的断裂强力也略有提升.     

抗菌热轧非织布的开发及其应用

抗菌热轧非织造布是一种具有广谱杀菌能力和宽抑菌晕圈的新型耐久性抗菌防臭非织造布,它能杀灭金黄色葡萄球菌、白色葡萄球菌、白色念珠菌、枯草杆菌、大肠杆菌、绿脓杆菌、痢疾杆菌、肠炎杆菌、伤寒杆菌、淋病菌等16种细菌,能除臭防霉,且无任何毒副作用。该产品抗菌速度快,     

非织造布在汽车工业的发展与应用

概述了非织造布在汽车领域应用上的性能和优势,对在汽车用非织造布上应用最为普遍的聚酯非织造布的特点和工艺方法做了介绍,说明了中国汽车用非织造布具有着光明的发展前景。     

氧化石墨烯对丙纶非织造布抗静电改性研究

采用氧化石墨烯对丙纶非织造布进行抗静电改性。利用透射电子显微镜和扫描电子显微镜对氧化石墨烯和抗静电改性前后的丙纶非织造布的表面形态进行表征,并测试改性前后丙纶非织造布的抗静电性能及力学性能。结果表明:氧化石墨烯边缘带有褶皱结构;改性后丙纶非织造布纤维表面出现了沟槽和凹坑,氧化石墨烯附着在丙纶非织造布纤维表面;经氧化石墨烯改性的丙纶非织造布的抗静电性能和力学性能均得到较大的提高;且当氧化石墨烯的质量分数为1.2%时,改性后丙纶非织造布的综合性能达到最好。     

Mechanical and functional evaluations of flaming-retardant/far-infrared composite nonwoven fabrics

This study aims to investigate the mechanical properties, far-infrared (FIR) emissivity, and limiting oxygen index (LOI) of FIR ray/low-melting-point (LM) nonwoven fabrics, flame retardant (FR)/LM nonwoven fabrics, and FIR/FR/LM composite nonwoven fabrics, which are with or without heat treatment and also investigating the effect of heat treatment on the LM polyethylene terephthalate (PET) fibers. Test results show that for FIR/LM nonwoven fabrics, applying heat treatment leads to the better mechanical properties and FIR emissivity of 0.90. For FR/LM nonwoven fabrics, unheat-treatment samples have greater mechanical properties and an LOI of 34. For FIR/FR/LM composite nonwoven fabrics, the unheat-treated samples exhibit greater tensile properties, but the heat-treated samples exhibit greater puncture resistance, burst strength, and FIR emissivity. The structural parameters of the composite nonwoven fabrics can be adjusted according to the demand of users in terms of FIR emissivity and flame retardancy, and the composite nonwoven fabrics are thus expected to be used as construction materials for medical systems.     

农用非织造布的功能与应用

介绍了农用非织造布的原料及生产技术 ,对比分析了农用非织造布与传统农用材料的性能、功能 ,探讨了农用非织造布开发应用的意义与前景。     

Basis weight uniformity analysis in nonwovens

It is widely recognized that nonwoven basis weight uniformity affects various properties of nonwovens, including appearance, physical properties, or mechanical properties. However, it is one of the nonwoven characteristics that is most difficult to characterize. This paper reports on the methodology based on the well-known quadrant method that objectively quantifies uniformity of nonwoven fabrics.     

Effect of compressibility on heat transport phenomena in aerogel-treated nonwoven fabrics

The heat transport properties observed in nanostructured materials such as aerogel-treated nonwoven fabrics are promoting revolutionary breakthroughs as thermal insulators. This article is focused on the thermal transport characteristics of nonwoven fabrics treated with aerogel for potential uses in thermal protective applications. Highly efficient aerogel thermal blankets are now considered a viable option in applications such as clothing, building, and pipelines. A variety of fiber and fabric structures or finishing parameters influence the functional properties of nonwoven materials. In order to assess the thermal properties of aerogel-treated nonwoven fabrics, the KES Thermolabo II and NT-H1 (plate/fabric/plate method for thermal conductivity, q_max cool/warm feeling, and thermal insulation) was used. Fabrics of higher thicknesses show lower heat conductance and therefore higher thermal insulation properties. It has been found that thermal insulation is also related to the weight and compressional properties of the fabric. To make an insulating material effective, it should have low compression set and high resiliency to make the still air to be entrapped into the fibrous material.     

纤网型缝编非织造材料结构性能初探

纤网型缝编技术采用织针勾取纤网中的纤维束形成线圈并编织,从而将纤网加固成纤网型缝编非织造材料,可作为室内装饰和产业用织物。通过实验研究了纤网型缝编非织造材料的纤网结构、拉伸性能、顶破强度等,并与针织物、针刺非织造材料进行了对比,探讨了影响纤网型缝编非织造材料基本性能的因素。     

非织造布技术的新时代：超细纤维非织造布及其应用

本文论述了以超细纤维为原料的各种非织造布的生产方法，工艺过程及其产品特点，指出纤维超细化将给非织造布技术带来一个新的时代。     

亲水性多孔聚丙烯腈纤维及其制品的舒适性

为改进常规聚丙烯腈（PAN）织物的穿着舒适性,将PAN与聚氧化乙烯（PEO）共混后湿法纺丝,经水洗后处理,制成具有微孔结构的改性PAN纤维（M-PAN）,然后对用其制成的非织造布进行水解处理,得到HM-PAN非织造布。通过与常规PAN、未经水解的M-PAN及棉非织造布的对比实验研究HM-PAN非织造布的穿着舒适性。结果表明,HM-PAN织物的吸湿、透湿、吸水性能较PAN、M-PAN织物有显著提高,但其吸湿、吸水性能略差于棉织物,透湿性能较棉织物好,透气性能优于PAN及棉织物,略差于M-PAN织物。     

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.     

织物结构对安芙赛纺织品阻燃性能的影响

 为提高安芙赛阻燃纤维织物的阻燃性能,采用极限氧指数法研究机织物纱线线密度和捻度、织物组织、经密、织物面密度等参数对其织物阻燃性能的影响。结果表明：双层织物的阻燃性能优于单层织物,极限氧指数均大于31.0%;双层织物的密度、纱线线密度、捻度越大,极限氧指数越高。此外,对安芙赛非织造布阻燃性能的研究结果表明：安芙赛非织造布极限氧指数随面密度的增加而提高;当安芙赛纤维与阻燃涤纶混合制备非织造布时,安芙赛纤维的含量应高于60％;当安芙赛纤维与羊毛纤维混合制备阻燃非织造布时,安芙赛纤维的含量应高于25％。     

Development of antibacterial fabrics by treatment with Ag-doped TiO2 nanoparticles

This paper deals with the antibacterial properties of nonwoven Co/PET and PP fabrics and woven cotton fabrics treated with the pad-dry-cure (PDC) and electrospray processes. Firstly, the surface modification of nonwoven Co/PET and PP fabrics was carried out to obtain their hydrophilicity by RF-plasma system using acrylic acid as the monomer. Subsequently, Ag-doped TiO₂ nanoparticles prepared by sol–gel and chemical reduction processes using titanium isopropoxide and silver nitrate as precursor were applied to the fabric samples by PDC and electrospray processes. The effect of different synthesis processes of the nanoparticles and various application processes on their antibacterial efficiency was investigated. After RF-plasma pretreatment, the absorbency properties of the fabric samples were measured. The antibacterial activity of fabric samples against Escherichia coli and Staphylococcus aureus was determined qualitatively and quantitatively according to AATCC Method 147 and AATCC Method 100, respectively. The microstructural characteristics and surface morphology of the fabric samples were investigated by SEM-EDX and FTIR-ATR analyses. These results suggest that Ag-doped TiO₂ nanoparticles synthesized by the chemical reduction process imparted good and durable antibacterial activity to nonwoven Co/PET and PP fabrics and woven cotton fabrics for use in wall textiles.