Wood cellulose biocomposites with fibrous structures at micro- and nanoscale
2011 (English)In: Composites Science And Technology, ISSN 0266-3538, Vol. 71, no 3, 382-387 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2011. Vol. 71, no 3, 382-387 p.
Nanofibrillated cellulose (NFC), Fibers, Nano composites, Mechanical properties, Scanning electron microscopy (SEM)
IdentifiersURN: urn:nbn:se:kth:diva-31014DOI: 10.1016/j.compscitech.2010.12.007ISI: 000287288200016ScopusID: 2-s2.0-78751622635OAI: oai:DiVA.org:kth-31014DiVA: diva2:404812
QC 201103182011-03-182011-03-072011-04-06Bibliographically approved