Tailoring the physical characteristics of solution blown cellulosic nonwovens by various post-treatments

被引:1
作者
Jedvert, Kerstin [1 ]
Viklund, Linnea [1 ,2 ]
Alkhagen, Marten [1 ]
Kohnke, Tobias [1 ]
Theliander, Hans [2 ]
机构
[1] RISE IVF, Div Mat & Prod, Fiber Dev, POB 104, SE-43122 Molndal, Sweden
[2] Chalmers Univ Technol, Dept Chem & Chem Engn, SE-41296 Gothenburg, Sweden
基金
瑞典研究理事会;
关键词
cellulose; drying; fibers; nonwovens; solution blow spinning;
D O I
10.1515/npprj-2021-0025
中图分类号
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号
0805 ; 080502 ; 0822 ;
摘要
Nonwovens are increasing in demand due to their versatility which enables use in a broad range of applications. Most nonwovens are still produced from fossil-based resources and there is thus a need to develop competitive materials from renewable feedstock. In this work, nonwovens are produced from cellulose via a direct solution blowing method. Cellulose was dissolved using the ionic liquid 1-ethyl-3-methylimidazolium acetate (EMIMAc) and was regenerated into nonwovens by coagulation in water. The properties of such nonwovens were previously rather stiff and papery-like and the aim of this work was to improve the softness and feel of the materials by simple adjustments of the post-processing steps, i. e. washing and drying. It was shown that by primarily changing the drying method, it was possible to create a much softer and bulkier material using the same solution blowing parameters.
引用
收藏
页码:682 / 695
页数:14
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