Abstract
Wood-based materials are used extensively in residual construction worldwide. Most of the adhesives used in wood-based materials are derived from fossil resources, and some are not environmentally friendly. This study explores nanofiber technology as an alternative to such adhesives. Previous studies have shown that the three-dimensional binding effects of cellulose nanofiber (CNF), when mixed with wood flour, can significantly improve the physical and mechanical properties of wood flour board. In this study, ligno-cellulose nanofibers (LCNF) were fabricated by wet disk milling of wood flour. Composite boards of wood flour and LCNF were produced to investigate the binding effect(s) of LCNF. The fabrication of LCNF by disk milling was simple and effective, and its incorporation into wood flour board significantly enhanced the physical and mechanical properties of the board.
Highlights
Wood-based materials are used worldwide in residential construction, especially in Japan
The particle size of the W8 ligno-cellulose nanofibers (LCNF) was less than one tenth that of
Wet disk milling of recycled wood flour resulted in the formation of nano-structured fibers with nano-sized surface fibrils
Summary
Wood-based materials are used worldwide in residential construction, especially in Japan. These materials can be made from virgin or recycled wood, and many are fabricated with various adhesives. Several modern adhesives are not environmentally friendly. The global effort toward sustainability demands the development of a novel, natural adhesive that does not depend on fossil resources and synthetic chemicals. Many studies have focused on developing natural material-based adhesives using bio-resources [1]. A natural adhesive, composed of citric [2,3,4,5] and lactic acids [6,7] for use in wood-based materials has been reported
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