共查询到20条相似文献,搜索用时 203 毫秒
1.
针对聚丙烯(PP)熔喷非织造布抗菌性能不足的问题,本文以PP熔喷非织造布为静电纺丝装置的接受基布、CuO-NPs为抗菌材料,制备具有高效抗菌性能的聚丙烯/聚丙烯腈/纳米氧化铜(PP/PAN/CuO-NPs)复合非织造布。研究了CuO-NPs质量分数与静电纺丝时间对复合非织造布抗菌等性能的影响。结果表明:当纺丝时间为1 h、CuO-NPs质量分数在0.3%~0.9%时,复合非织造布对E.coli和S.aureus的抑菌率均>99.99%。纺丝时间为1 h,随着CuO-NPs质量分数增大,复合非织造布纤维直径增大、直径分布均匀性降低、疏水性能下降。CuO-NPs质量分数不变,随着纺丝时间增加,复合非织造布的过滤效率提升,透气性却下降。纺丝时间相同,复合非织造布的过滤效率随着CuO-NPs质量分数增大而增大;CuO-NPs质量分数增大时,复合非织造布的透气性在较短纺丝时间(0.5~1 h)内先下降后提升,在较长纺丝时间(1.5~2.5 h)内显著下降。此外,CuO-NPs的加入不会改变PAN纳米纤维膜的化学结构。静电纺纳米纤维膜与PP基布的复合可以制备高效过滤和抑菌的医用防疫纺织品。 相似文献
2.
3.
4.
5.
6.
7.
8.
9.
10.
本文介绍了国外纺络法非织造布生产设备的发展动态。纺络法采用高压高速微细水流喷射纤维网,使纤维网中的纤维相互缠结,形成手感,柔软性和透气性较好的非织造布,应用范围极广。随着市场需求量的日益增长,纺络法非织造布生产设备越来越朝着优质高产多品种等方向发展。 相似文献
11.
介绍一种新型银系抗菌剂在水刺非织造布后整理中的应用.采用络合纳米银抗菌剂对水刺非织造布进行抗菌整理,赋予其高效抗菌功能,使之广泛应用于医疗、卫生等领域.由于常用的纳米银抗菌粉体不溶于水,而纺织材料的后整理一般都是以水为介质,因此须采用液态抗菌剂.本试验着重研究高效络合银液态抗菌剂在常用纤维水刺非织造布上的抗菌整理及效果... 相似文献
12.
13.
14.
15.
为研究SiO2气凝胶对芳纶非织造布抗压、阻燃防护功能的影响,以芳纶非织造布为骨架材料,将SiO2气凝胶施加到芳纶非织造布表面,制备出SiO2气凝胶混杂芳纶非织造布防护材料。通过扫描电子显微镜对其结构形貌进行表征,借助万能材料试验机对其抗压性能进行分析,最后利用热常数分析仪和火焰手系统,测试并评估了制备的防护材料的阻燃隔热性能。结果表明:SiO2气凝胶以不同大小的块状、颗粒状填充进入芳纶非织造布纤维间的空隙;SiO2气凝胶可增强芳纶非织造布的抗压性能,且降低其导热系数;混杂SiO2气凝胶后芳纶非织造布总的吸收能量值降低,说明SiO2气凝胶可明显增强芳纶非织造布的热防护效果。 相似文献
16.
为改善聚丙烯非织造布的抗静电性,以氧化石墨烯为接枝单体,冰醋酸为催化剂,通过响应面分析法优化聚丙烯非织造布接枝氧化石墨烯工艺参数。探讨了氧化石墨烯质量浓度、催化剂浓度和接枝温度对接枝率的影响,借助织物摩擦式静电测试仪、表面张力测试仪、扫描电子显微镜、傅里叶变换红外光谱仪对非织造布进行测试和表征。获得聚丙烯非织造布接枝氧化石墨烯最优工艺参数:氧化石墨烯质量浓度为17.06 g/L,冰醋酸浓度为0.031 mol/L,温度为70.60 ℃,在此条件下测得,接枝率为22.3%。结果表明:接枝后聚丙烯非织造布的摩擦带电电压为1 094 V,接触角为76.9°;接枝后的非织造布较原布粗糙,并且明显附着一层物质;接枝后的非织造布在1 621、1 385、1 117 cm-1处出现了新的峰,证明氧化石墨烯的存在。 相似文献
17.
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, qmax 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. 相似文献
18.
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. 相似文献
19.
静电纺高效防尘复合滤料的制备及其性能 总被引:1,自引:0,他引:1
为获得无毒无害高效防尘口罩的过滤材料,采用静电纺丝技术制备直径为(0.088±0.01)μm的锦纶6∕ 壳聚糖(PA6/CS)共混纳米纤维,与丙纶熔喷非织造布复合形成高效防尘复合滤料,研究了静电纺丝时间对复合滤料表面形貌、孔径及其分布、过滤性能和透气透湿性能的影响。结果表明,静电纺(PA6/CS)纳米纤维层可显著提高丙纶熔喷非织造布的过滤效率,静电纺丝 90 min 后复合滤料对 NaCl 气溶胶的过滤效率达到99%以上,明显高于丙纶熔喷非织造布的过滤效率(29%),但是随着静电纺丝时间的延长,复合滤料的孔径、过滤阻力和透气性能明显下降,而透湿性能变化不明显。 相似文献
20.
为提高医卫用非织造布产品的使用性能,本文采用NaOH/H2O2一步法对棉纤维进行脱脂漂白,通过正交试验设计,利用极差分析法,确定最佳脱漂工艺,探讨先漂后刺和先刺后漂两种工艺对医卫用全棉水刺非织造材料吸水性、白度、强度、柔软性和透气性的影响。结果表明:最佳脱漂工艺参数组合为:时间60 min,浴比1:30,温度95 ℃;温度对纤维白度和吸水量的影响最大,时间对纤维强度的影响最大;使用最佳脱漂工艺参数得到的全棉水刺非织造布,其厚度、克重和断裂强度有所下降,吸水性明显上升;采用最佳脱漂工艺参数组合制备的先漂后刺全棉水刺非织造布的断裂强度和断裂伸长率较高,而采用先刺后漂全棉水刺非织造布的柔软性、透气性和吸水性更好。 相似文献