Thermogravimetric measurement of amorphous cellulose content in flax fibre and flax pulp

被引：37

作者：

Garcia Barneto, Agustin ^{[1
]}

Vila, Carlos ^{[2
]}

Ariza, Jose ^{[1
]}

Vidal, Teresa ^{[2
]}

机构：

[1] Univ Huelva, Dept Chem Engn, Huelva 21071, Spain

[2] Univ Politecn Cataluna, Dept Text & Paper Engn, E-08222 Terrassa, Spain

来源：

CELLULOSE | 2011年 / 18卷 / 01期

关键词：

Flax fibre; Flax pulp; Modeling; Thermogravimetry; Nucleation kinetic; X-RAY-DIFFRACTION; THERMAL-DECOMPOSITION; PYROLYSIS KINETICS; LIGNOCELLULOSIC MATERIALS; XYLANASE; BIOMASS; DEGRADATION; COMBUSTION; EXTRACTION; SHIVES;

D O I：

10.1007/s10570-010-9472-0

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：

Usually the raw material for flax pulp production is a blend which contains fibres and shives. In order to better understanding the structure of these materials and the effects of flax pulping, X-ray diffraction and thermogravimetry analysis under air atmosphere have been used. There was a significant effect of the fibre size on the composition, crystallinity, and thermal behaviour of the flax pulps. On the other hand, data obtained from thermogravimetric analysis have been modelled on the basis of two cellulose types characterized by different crystallinity levels, using kinetics equations based on the nucleation concept. As a result of these simulations, composition of the samples, pulp crystallinity and the proportion of amorphous cellulose are calculated.

引用

页码：17 / 31

页数：15

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