Improving Ramie Fibers Softness Using Ionic Liquid Treatment
Improving Ramie Fibers Softness Using Ionic Liquid Treatment
复制标题
使用离子液体处理提高苎麻纤维的柔软度
DOI：
10.1080/15440478.2020.1848719
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发表时间：
2020-11
影响因子：
3.5
通讯作者：
Wei Jiang
中科院分区：
文献类型：
--
作者：
Wanwan Lv;Kai Nie;Yan Song;Chuanhe Li;Haoxi Ben;Yuanming Zhang;Guangting Han;Wei Jiang
苎麻纤维作为世界上最长的天然纤维素纤维，在纺织生产中得到了广泛的应用。然而，苎麻纤维的刚性极大地限制了其在高附加值服装中的应用。因此，苎麻纤维的软化处理是必不可少的。在这项研究中，使用四种不同浓度的离子液体（IL）溶液[Emim]OAc（1-乙基-3-甲基咪唑醋酸盐）处理脱胶的苎麻纤维。采用扫描电镜（SEM）、凝胶渗透（GPC）、x射线衍射（XRD）对纤维的细度、力学性能、吸湿性和解离性进行了测试。结果表明，经90% IL处理后的苎麻纤维模量下降到原来的31%，断裂强度下降到原来的50%，这些力学性能与棉纤维相似，比普通苎麻纤维柔软得多。此外，经IL处理的苎麻纤维具有较高的吸水率和断裂伸长率。相信通过适当的IL处理，苎麻纤维将显示出更好的纺织生产潜力。
ABSTRACT Ramie fiber as the longest natural cellulose fiber in the world has been widely used in textile production. However, the rigidity of ramie fiber greatly restricts its application in high value-added garments. The softening treatment of ramie fibers is therefore essential. In this study, four different concentrations of ionic liquid (IL) solutions, [Emim]OAc(1-ethyl-3-methylimidazolium acetate), were used to treat degummed ramie fibers. The fiber fineness, mechanical properties, moisture absorption, and liberation ability were tested, and the fibers were also examined with Scanning Electron Micorscope (SEM), Gel Permeation (GPC), and X-ray diffraction (XRD). The results showed that the fiber modulus after 90% IL treatment was decreased to 31% of its original value while the breaking tenacity was decreased to 50% of its original value, these mechanical properties of treated ramie fiber were similar to cotton fiber and much softer than regular ramie fibers. Moreover, with the IL treatment, the ramie fiber presented higher water absorption and breaking elongation. It is believed that with the proper IL treatment, the ramie fiber will show better potential for textile production.
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