纤维
氢氧化钠
漆酶
化学
醋酸
傅里叶变换红外光谱
表面改性
吸附
扫描电子显微镜
核化学
化学工程
有机化学
材料科学
复合材料
酶
吸附
物理化学
工程类
作者
Yeping Xiang,Jianyong Yu,Liu Liu,Ruiyun Zhang,Yongshuai Qu,Miaolei Jing
标识
DOI:10.1177/0040517518792724
摘要
In this study, we found an environmentally friendly system in the degumming of hemp fiber without using a strong acid and alkali. The chemo-enzymatic modification and degumming of hemp fiber used an acetic acid–sodium acetate buffer solution containing laccase, hemicellulase and 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) under a mild condition (pH = 5, T = 50℃). Through comparing and analyzing the physical and chemical properties of fiber products under different treatments, we found the method involving treatment with TEMPO/laccase/hemicellulase not only greatly removed most of the gum attached on the surface of the raw hemp fiber, but also introduced surface-active aldehyde and carboxyl groups into the fiber. The performances of the hemp fibers with different treatments were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray diffraction. We also found the product was finer, with a lower content of non-cellulosic components and it had better water uptake properties (moisture sorption and water retention value), which has potential application values in textile industries.
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