Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 17, Issue 3, Pages 521-526Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2010.10.022
Keywords
Cellulose nanofibrils; Nanopaper; Alkali treatment; Silanes; Tensile properties
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Cellulose nanofibrils were manufactured from cellulose powder (45 mu m particle size) using a high pressure homogenizer with various pass numbers. In the present study, the cellulose nanofibrils were used to prepare nanopapers of extremely high tensile performance. Chemical modifications with the increased pass number through the homogenizer provided the dramatically increased tensile modulus and strength of the nanopapers. The high tensile properties are related to the increased surface area, improved crystallinity, hydrogen bonding sites by the homogenization, 3-dimension network structure between the cellulose nanofibrils, and improved stress distribution during the tensile test. (C) 2011 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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