Environmental friendly method for the extraction of coir fibre and isolation of nanofibre

被引：264

作者：

Abraham, Eldho ^{[1
,2
,4
]}

Deepa, B. ^{[2
]}

Pothen, L. A. ^{[2
]}

Cintil, J. ^{[3
]}

Thomas, S. ^{[3
]}

John, M. J. ^{[4
]}

Anandjiwala, R. ^{[4
]}

Narine, S. S. ^{[1
]}

机构：

[1] Trent Univ, Trent Biomat Res Program, Peterborough, ON K9J 7B8, Canada

[2] Bishop Moore Coll, Dept Chem, Mavelikkara, Kerala, India

[3] Mahatma Gandhi Univ, Sch Chem Sci, Kottayam 686560, Kerala, India

[4] CSIR, Fibres & Text Competence Area, Pe, South Africa

来源：

CARBOHYDRATE POLYMERS | 2013年 / 92卷 / 02期

关键词：

Coir fibre; Steam explosion; Extraction; Cellulose nanofibre; X-RAY; CELLULOSE; FIBRILS; COMPOSITE; POLYMERS;

D O I：

10.1016/j.carbpol.2012.10.056

中图分类号：

O69 [应用化学];

学科分类号：

070301 [无机化学];

摘要：

The objective of this work was to develop an environmental friendly method for the effective utilizadon of coir fibre by adopting steam pre-treatment. The retting of the coconut bunch makes strong environmental problems which can be avoided by this method. Chemical characterization of the fibre during each processing stages confirmed the increase of cellulose content from raw (40%) to final steam treated fibres (93%). Morphological and dynamic light scattering analyses of the fibres at different processing stages revealed that the isolation of cellulose nano fibres occur in the final step of the process as an aqueous suspension. FT-IR and XRD analysis demonstrated that the treatments lead to the gradual removal of lignin and hemicelluloses from the fibres. The existence of strong lignin-cellulose complex in the raw coir fibre is proved by its enhanced thermal stability. Steam explosion has been proved to be a green method to expand the application areas of coir fibre. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1477 / 1483

页数：7

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