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Formaldehyde‐Free Wood Adhesives from Decayed Wood
Author(s) -
Li Kaichang,
Geng Xinglian
Publication year - 2005
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200400594
Subject(s) - adhesive , polyethylenimine , formaldehyde , lignin , free water , water resistance , polymer , chemistry , materials science , polymer chemistry , organic chemistry , composite material , transfection , biochemistry , layer (electronics) , environmental engineering , engineering , gene
Summary: Extensive studies using mussel adhesive protein as a formaldehyde‐free, strong, and water‐resistant adhesive model revealed that a combination of a polymer with catechol moieties and a polymer with amino groups could serve as a strong and water‐resistant wood adhesive. This study demonstrated that the treatment of abundant and readily available brown‐rot‐fungus‐decayed wood with NaBH 4 followed by mixing with polyethylenimine resulted in a formaldehyde‐free, strong, and water‐resistant wood adhesive.Lignin is demethylated by brown‐rot fungi and then reduced using NaBH 4 .