An environmentally friendly method for enzyme-assisted preparation of microfibrillated cellulose (MFC) nanofibers

被引：892

作者：

Henriksson, M.

Henriksson, G.

Berglund, L. A.

Lindstrom, T.

机构：

[1] STFI Packforsk AB, SE-11486 Stockholm, Sweden

[2] Royal Inst Technol, Dept Fibre & Polymer Technol, SE-10044 Stockholm, Sweden

来源：

EUROPEAN POLYMER JOURNAL | 2007年 / 43卷 / 08期

关键词：

microfibrillated cellulose; nanofibers; endoglucanase; hydrolysis; degree of polymerization;

D O I：

10.1016/j.eurpolymj.2007.05.038

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Microfibrillated cellulose nanofibers (MFC) provide strong reinforcement in polymer nanocomposites. In the present study, cellulosic wood fiber pulps are treated by endoglucanases or acid hydrolysis in combination with mechanical shearing in order to disintegrate MFC from the wood fiber cell wall. After successful disintegration, the MFC nanofibers were studied by atomic force microscopy (AFM). Enzyme-treatment was found to facilitate disintegration, and the MFC nanofibers produced also showed higher average molar mass and larger aspect ratio than nanofibers resulting from acidic pretreatment. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：3434 / 3441

页数：8

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