Preparation and characterization of cellulose nanofibers from de-pectinated sugar beet pulp

被引：161
|
作者：
Li, Meng [1 ]
Wang, Li-jun [2 ]
Li, Dong [1 ]
Cheng, Yan-Ling [3 ]
Adhikari, Benu [4 ]
机构：
[1] China Agr Univ, Coll Engn, Natl Energy R&D Ctr Nonfood Biomass, Beijing 100083, Peoples R China
[2] China Agr Univ, Beijing Key Lab Funct Food Plant Resources, Coll Food Sci & Nutr Engn, Beijing 100083, Peoples R China
[3] Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China
[4] RMIT Univ, Sch Appl Sci, Melbourne, Vic 3001, Australia
来源：
CARBOHYDRATE POLYMERS | 2014年 / 102卷
基金：
中国国家自然科学基金;
关键词：
Cellulose nanofibers; Sugar beet; High pressure homogenization; Morphology; Thermal degradation; HIGH-PRESSURE HOMOGENIZATION; WHEAT-STRAW; FIBERS; HEMICELLULOSES; NANOCRYSTALS; CRYSTALLINE; EXTRACTION; WHISKERS;
D O I：
10.1016/j.carbpol.2013.11.021
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Cellulose nanofibers (diameter =10-70 nm) were produced using chemical treatments (alkali treatment and bleaching) and high pressure homogenization from de-pectinated sugar beet pulp (DSBP). Chemical analysis and Fourier transform infrared spectroscopy (FTIR) indicated that the chemical treatments greatly removed the hemicellulose and lignin from the DSBP and significantly increased the cellulose content. The crystallinity of the cellulose nanofibers increased from 35.67% to 69.62% after alkali treatment and bleaching. The thermal degradation temperature of DSBP cellulose nanofibers was 271.7 degrees C which was found to be 47.3 degrees C higher than that of the untreated DSBP. The DSBP cellulose nanofibers can be preferably used as reinforcement in the biocomposite material at high temperature. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：136 / 143
页数：8
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