期刊
JOURNAL OF NATURAL FIBERS
卷 19, 期 10, 页码 3681-3688出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15440478.2020.1848719
关键词
Ramie fiber; ionic liquid; softness; modulus; breaking tenacity; treatment
资金
- National Natural Science Foundation of China [51903131]
- Natural Science Foundation of Shandong Province [ZR2019QEM007]
- State Key Laboratory of Bio-Fibers and Eco-Textiles (Qingdao University) [ZKT16]
- Special Foundation of Taishan Scholar Construction Program
This study investigated the treatment of degummed ramie fibers using different concentrations of ionic liquid solutions. The results showed that the treatment effectively improved the mechanical properties and softness of the fibers, while also enhancing their water absorption and breaking elongation. Consequently, ramie fibers treated with ionic liquid may have better potential for use in textile production.
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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