Synthesis and Characterization of Cellulose Carbamate from Wood Pulp, Assisted by Supercritical Carbon Dioxide

被引：0

作者：

Zhang, Yang ^{[1
]}

Yin, Cuiyu ^{[1
]}

Zhang, Yufeng ^{[1
]}

Wu, Haiyan ^{[1
]}

机构：

[1] Tianjin Polytech Univ, Tianjin Municipal Key Lab Fiber Modificat & Funct, Tianjin 300160, Peoples R China

来源：

BIORESOURCES | 2013年 / 8卷 / 01期

关键词：

Cellulose carbamate; Lignocellulose; Supercritical carbon dioxide; Wood pulp; X-RAY; BEHAVIOR; SOLVENT; CO2;

D O I：

10.15376/biores.8.1.1398-1408

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

This paper considers the modification of wood-derived cellulose assisted by supercritical carbon dioxide (SC-CO2). Cellulose carbamate derivatives were successfully prepared from softwood pulp at 150 degrees C and 3000 psi for 6 hours. Compared with conventional methods, SC-CO2 was shown to be more efficient in the modification of wood-derived cellulose. The modified cellulose had a considerable increase in nitrogen content. During the characterization Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Thermogravimetry (TG), and Field Emission Scanning Electron Microscopy (FE-SEM) were employed to investigate the structural and morphological changes in modified cellulose from wood.

引用

页码：1398 / 1408

页数：11

共 32 条

[1] CHEMISTRY OF LIGNOCELLULOSE - METHODS OF ANALYSIS AND CONSEQUENCES OF STRUCTURE [J].