Environmentally friendly superabsorbent fibers based on electrospun cellulose nanofibers extracted from wheat straw

被引：48

作者：

Petroudy, Seyed Rahman Djafari ^{[1
]}

Kahagh, Sajad Arjmand ^{[1
]}

Vatankhah, Elham ^{[2
]}

机构：

[1] Shahid Beheshti Univ, Fac New Technol Engn, Biorefinery Engn Dept, Cellulose Nanotechnol Lab, Zirab Campus, Tehran, Iran

[2] Shahid Beheshti Univ, Fac New Technol Engn, Biosyst Engn Dept, Zirab Campus, Tehran, Iran

来源：

CARBOHYDRATE POLYMERS | 2021年 / 251卷

基金：

美国国家科学基金会;

关键词：

Cellulose nanofibers; Electrospinning; Superabsorbent fibers; Wheat straw; TRIFLUOROACETIC-ACID; STEAM EXPLOSION; HYDROGELS; HYDROLYSIS; COMPOSITE; OXIDATION; SOLVENTS; XYLAN;

D O I：

10.1016/j.carbpol.2020.117087

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Superabsorbent polymers currently used in health and agricultural sectors are based on petroleum-based materials which led to serious concerns in the society. Here, superabsorbent fibers (SAFs) based on electrospun cellulose nanofibers (ECNFs) were prepared. Firstly, cellulose was removed from wheat straw, pre-treated with the TEMPO-mediated oxidation and subsequently dissolved into Trifluoroacetic acid for production of ECNFs through the electrospinning approach. The maximum swelling ratios of 225 g/g and 208 g/g in distilled water and 0.9 wt% NaCl solution were measured for ESAFs composed of oxidized ECNFs containing 15 % poly (sodium acrylate), respectively. The ESAFs were characterized using Fourier transform infrared spectroscopy and field emission scanning electron microscopy analysis. The FESEM showed that ESAFs formed high strength three-dimensional architecture networks. Also, the results showed that the ionic sensitivity of this ECNFs were low. The prepared ESAFs are attractive renewable alternatives for different applications, contributing to a reduction of plastic microspheres.

引用

页数：13

共 48 条

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