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Preparation of board-like moldings from composites of isolated lignins and waste paper II : effect of inorganic salt addition on board performance and evaluation of practical use of MDF

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Title: Preparation of board-like moldings from composites of isolated lignins and waste paper II : effect of inorganic salt addition on board performance and evaluation of practical use of MDF
Authors: Uraki, Yasumitsu1 Browse this author →KAKEN DB
Nemoto, Junji Browse this author
Yanaga, Kuniyoshi Browse this author
Koizumi, Akio Browse this author →KAKEN DB
Hirai, Takuro Browse this author
Authors(alt): 浦木, 康光1
Keywords: Acetic acid lignin
Waste papers
Lignin adhesive
Hardboard
MDF
Issue Date: Dec-2005
Publisher: Springer
Journal Title: Journal of Wood Science
Volume: 51
Issue: 6
Start Page: 589
End Page: 594
Publisher DOI: 10.1007/s10086-004-0695-2
Abstract: Board-shaped composites with medium density (MDF) were prepared from isolated lignins and waste newspaper, in addition to preparation of the composites with high density (HB). The board properties of both composites concerning bending strength and water resistance were improved by the addition of hardwood acetic acid lignin (HAL). The internal bond strength and water resistance of MDF, in particular the degree of thickness swelling (TS), were also improved by prolonged molding time. Adding inorganic salts contributed to the improvement of TS. The effect depended on the charge of the cation. Considering practical utilization of lignin-based MDF as a structural material, its performance was evaluated by combination of the single-shear test of nailed joints and the modulus of rigidity. As a result, this MDF had sufficient strength to be utilized as an internal shear wall material. Therefore, lignin can be considered as an alternative to conventional adhesives for the production of boards such as HB and MDF.
Rights: The original publication is available at www.springerlink.com
Type: article (author version)
URI: http://hdl.handle.net/2115/7400
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 浦木 康光

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