共查询到20条相似文献,搜索用时 125 毫秒
1.
2.
3.
4.
5.
6.
7.
为了进行红外光谱定量分析纤维含量的研究,测试了不同比例木棉/棉混合物的红外光谱图,探讨了红外光谱定量分析木棉/棉混纺比的方法。研究表明,1732cm-1和1242cm-1处特征吸收峰面积与木棉含量的线性关系明显,1732cm-1处最佳。以1732cm-1处的特征吸收峰面积对木棉/棉混纺试样的木棉含量作了定量分析,得出了线性关系较好的标准曲线。用本法对未知样品的木棉含量进行测定,得到了较好的结果。 相似文献
8.
9.
阐述了古代文献中相关木棉的记载,分析了海南黎族收集的木棉纺织品,得出其具有一定可纺性的结论,可供木棉纤维纺织品开发参考。 相似文献
10.
11.
利用纤维长度测量仪(Almeter-100)和双向取样与2次整理的方法,实测了毛条中纤维的长度分布特征.通过正、反向和无折钩试样纤维长度分布的对比,讨论了纤维的断裂引起的长度显性损伤和纤维弯折所致的隐性损伤,并对毛条加工中纤维长度的显性和隐性损伤做了定量分析. 相似文献
12.
一种新型色纺专利混棉机简介 总被引:2,自引:0,他引:2
解析了一种色纺专利混和技术:一种构思巧妙、结构简单的混棉机器,实现了平铺直取、换向混和等多种混和原理的集成.以此取代色纺生产中传统的手工预混,改善了工作环境,简化了操作管理,色纺混和质量显著提升,资源消耗大幅下降.实践证明,色纺生产运用这一技术能带来显著的收益. 相似文献
13.
聚乳酸纤维是一种新型合成纤维,因其具有可生物降解性而符合当今注重环保的潮流。对中国在聚乳酸纤维及其织物的研究与开发现状进行了文献分析和总结,发现:聚乳酸纤维除了可生物降解、体积质量较小和吸湿性比涤纶略好外,在其他服用性能上不及涤纶,特别是聚乳酸纤维的染色问题尚未完全解决;且中国有关聚乳酸纤维织物服用性能和舒适性的研究还比较缺乏。 相似文献
14.
镀铜碳纤维丝束细观耐磨性的有限元仿真模拟 总被引:1,自引:0,他引:1
针对碳纤维丝束在织造过程中易出现断经和起毛的问题,提出在碳纤维丝束表面镀铜以提高丝束耐磨性。首先在Solidworks中建立树脂基碳纤维丝束细观模型,利用ABAQUS对开口时碳纤维丝束与镀铜综丝眼之间的滑动摩擦损伤进行仿真模拟,并运用纤维复合材料渐进损伤失效模型进行损伤演化分析;将树脂基碳纤维丝束改为镀铜碳纤维丝束,通过拉伸模拟验证了丝束模型的可行性,运用Archard模型对镀铜碳纤维丝束进行耐磨性仿真模拟;最后在ABAQUS中模拟仿真纤维的硬挺度。结果表明:当镀铜层厚度为1.0 μm时,仿真预测的镀铜碳纤维丝束耐磨次数约是上浆碳纤维丝束(上浆率为0.32%、浆液质量分数为3%)耐磨次数的2倍;在碳纤维丝束表面镀0.5~1.0 μm的铜层时具有良好的可织性。 相似文献
15.
16.
The simple Euler model of buckling of a slender rod has been commonly used to explain the mechanics in relation to the buckling of fabric‐evoked prickliness. Unfortunately, few works have paid attention to its applicability into the buckling behavior of fiber prickling human skin to evoke prickliness, though the friction between the fiber end and the skin and the firmness of a fiber end held in fabric (denoted as elastic stiffness) are considered to be among the main factors for fabric‐evoked prickliness. To model the mechanics of buckling of a fiber in relation to fabric‐evoked prickliness, the fiber–skin friction, the elastic stiffness, and the initial inclined angle of the fiber are introduced into the simple Euler model of buckling of a slender rod. Then, a sensitivity analysis is performed on these three factors to observe their role in the buckling behavior of a fiber. The results demonstrate that the fiber–skin friction and the elastic stiffness have a significant effect on the buckling behavior of fiber end prickling skin and the stimulus intensity to skin. Additionally, the fiber with an initial inclined angle can exert compression force on skin above the average force threshold of nociceptors responsible for fabric‐evoked prickliness, and the force size depends on the fiber property and its end‐restraint intensity. Therefore, it is not appropriate for the assumption of a fixed‐hinged boundary of the fiber end prickling human skin. In this sense, a developed fiber–skin coupling model provides a good modeling for the buckling behavior of fiber end pricking human skin. 相似文献
17.
18.
为了对海丝纤维的结构和性能有更好的理解,分析了海丝纤维的组成及结构特点,以及纤维的强度和延伸性能。介绍了用硝酸银处理海丝纤维制备含银海丝活性纤维的生产工艺及产品性能。处理后的含银海丝活性纤维的强度和延伸性虽有一定的下降,但具有很好的抗菌性能,对引起皮肤发痒的念珠菌属真菌、引起皮炎的金黄色葡萄球菌和造成皮肤感染的大肠杆菌都有明显的抑制作用。海丝纤维及含银海丝活性纤维结合了Lyocell纤维优良的物理性能以及海藻类生物材料和银离子的生物活性,在功能性纺织品中有很好的应用价值。 相似文献
19.
Various amounts of apple fiber and cellulose were added to wheat gluten and water-holding capacities (WHC) of the different mixtures were determined. A linear relationship between concentrations of two kinds of fiber and WHC was not observed, indicating a possible interaction between fiber and gluten which reduced the WHC of mixtures. Mixograph studies of wheat flour and fiber mixtures demonstrated that the dilution of gluten by fiber could not account for all of the observed changes in mixing properties of the wheat flour/fiber blends. This is further evidence for a possible interaction of fiber and gluten which may explain the poor baking properties of apple fiber bread. 相似文献
20.
为实现用显微镜法测试纤维直径和含量时计算机自动计数,除用纤维散布器使纤维尽可能分散为单根纤维外,对个别没有分散开的重叠纤维(3根以下)利用图像处理技术进行分离.提取纤维集合体边缘,计算边缘各点倾角曲线,并对此曲线进行小波变换,将纤维头端去除而获得纤维纵向边缘,用Hough变换提取直线逼近纵向边缘,并求出其倾角和中心点,... 相似文献