纤维素
木质素
柠檬酸
化学工程
溶解
化学
接触角
材料科学
热稳定性
二甲基亚砜
有机化学
高分子化学
核化学
工程类
作者
Huaiqi Shao,Yongjian Zhang,Hui Pan,Jiang Yong,Jinqiu Qi,Hui Xiao,Shaobo Zhang,Tiantian Lin,Lihua Tu,Jiulong Xie
标识
DOI:10.1016/j.ijbiomac.2022.03.183
摘要
Lignin-containing bamboo cellulose, fractionated from a pilot-scale microwave liquefaction of bamboo was dissolved in tetrabutylammonium acetate/dimethyl sulfoxide (TBAA/DMSO) for the fabrication of highly flexible, transparent and UV-blocking films. Tea polyphenol (TP) or citric acid (CA) was added during the dissolving process in order to modify the film's properties. The results showed that the addition of TP obviously improved the elongation at break (triple that of the control) and UV-blocking ability of the films. Both the addition of TP and CA could increase the water contact angle of the films. The films incorporated with TP and CA were much more thermal stable than previously reported similar films. The proposed film fabrication mechanism revealed that stable hydrogen bonds formed between the lignin-cellulose matrix and TP/CA, resulting in the enhancement on the properties of the films. This present study showed that lignin-containing cellulose with the incorporation of TP/CA had great potential in the preparation of films in place of plastic.
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