纤维素
纳米技术
材料科学
化学
化学工程
工艺工程
有机化学
工程类
作者
Xiaodi Liu,Yichen Tian,Li Wang,Lei Chen,Zhiping Jin,Qiang Zhang
出处
期刊:Nano Letters
[American Chemical Society]
日期:2024-07-11
被引量:1
标识
DOI:10.1021/acs.nanolett.4c02351
摘要
Cellulose is difficult to melt or dissolve. The dissolution and regeneration process paves the way to convert cellulose into diverse forms but still suffers from high costs and environmental pollution. Here, we developed a method that uses aqueous alkali to efficiently dissolve cellulose at a temperature above 0 °C in minutes for fabricating regenerated cellulose. Cellulose was modified with minimal carboxymethyl groups to weaken the intermolecular interaction and improve its dissolution. The modified cellulose can be commercially obtained from carboxymethyl cellulose manufacturing with low cost and high quality. The use of only aqueous alkali reduces pollution and facilitates chemical recycling, and the moderate dissolving temperature reduces energy consumption. The regenerated cellulose materials display excellent mechanical properties and can be recycled or biodegraded after use. The method allows the use of diverse raw materials and modifications to broaden its applicability. The study develops a low-cost and eco-friendly method to fabricate regenerated cellulose.
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