Wood cellulose biocomposites with fibrous structures at micro- and nanoscale

被引：144

作者：

Sehaqui, Houssine ^{[1
]}

Allais, Mael ^{[2
]}

Zhou, Qi ^{[1
,3
]}

Berglund, Lars A. ^{[1
,4
]}

机构：

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

[2] Ecole Natl Super Arts & Metiers, F-33405 Talence, France

[3] Royal Inst Technol, Albanova Univ Ctr, Sch Biotechnol, SE-10691 Stockholm, Sweden

[4] Royal Inst Technol, Wallenberg Wood Sci Ctr, SE-10044 Stockholm, Sweden

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2011年 / 71卷 / 03期

关键词：

Nanofibrillated cellulose (NFC); Fibers; Nano composites; Mechanical properties; Scanning electron microscopy (SEM); COMPOSITES; PULP; NANOCOMPOSITES; TRANSPARENT; AEROGELS; FIBERS; PAPER;

D O I：

10.1016/j.compscitech.2010.12.007

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

High-strength composites from wood fiber and nanofibrillated cellulose (NFC) were prepared in a semiautomatic sheet former. The composites were characterized by tensile tests, dynamic mechanical thermal analysis, field-emission scanning electron microscopy, and porosity measurements. The tensile strength increased from 98 MPa to 160 MPa and the work to fracture was more than doubled with the addition of 10% NFC to wood fibers. A hierarchical structure was obtained in the composites in the form of a micro-scale wood fiber network and an additional NFC nanofiber network linking wood fibers and also occupying some of the micro-scale porosity. Deformation mechanisms are discussed as well as possible applications of this biocomposites concept. (C) 2010 Published by Elsevier Ltd.

引用

页码：382 / 387

页数：6

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