Extraction and characterization of microcrystalline cellulose from waste cotton fabrics via hydrothermal method

被引：70

作者：

Shi Sheng ^{[1
]}

Zhang Meiling ^{[1
]}

Ling Chen ^{[1
]}

Hou Wensheng ^{[1
]}

Yan Zhifeng ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Coll Text Engn, Jinzhong 030600, Shanxi, Peoples R China

来源：

WASTE MANAGEMENT | 2018年 / 82卷

基金：

中国国家自然科学基金;

关键词：

Waste fabrics; Microcrystalline cellulose; Hydrothermal method; Degradation; Degree of polymerization; BACTERIAL CELLULOSE; RICE STRAW; HYDROLYSIS; ACID; NANOCELLULOSE; NANOWHISKERS; ULTRASOUND; BIOMASS; FIBERS;

D O I：

10.1016/j.wasman.2018.10.023

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A large amount of accumulated waste cotton fabrics (WCFs) have caused environmental problem and depletion of resources. The extraction of microcrystalline cellulose as value-added products is one of the effective ways to the recycling of WCFs. This study aimed to extract microcrystalline cellulose from WCFs by the hydrothermal method and compare the extracted microcrystalline cellulose (EMC) with Avicel PH101 microcrystalline cellulose (MCC). The EMC was extracted under hydrothermal conditions (solid-liquid ratio 1:30, HCl concentration 0.6 mol/L, 150 degrees C, 100 min), with a yield and the degree of polymerization of 85.54% and 228, respectively. The samples were characterized by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, nuclear magnetic resonance, thermogravimetric analysis and contact angle testing. The detailed analyses showed that the properties of EMC prepared from WCFs are similar to those of commercial MCC. The results indicated that WCFs is a critical and potential low-cost raw material to prepare MCC. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：139 / 146

页数：8

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