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Laminating wood adhesives by generation of resorcinol from tannin extracts
Author(s) -
Pizzi A.,
Daling G. M. E.
Publication year - 1980
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1980.070250606
Subject(s) - acacia mearnsii , resorcinol , tannin , adhesive , acacia , wattle (construction) , pulp and paper industry , materials science , chemistry , composite material , botany , organic chemistry , food science , biology , engineering , layer (electronics)
Resorcinol has been generated in situ by high levels of sulfitation of the tannin extract of the black wattle tree ( Acacia mearnsii , formely mollissima ). Consequently, weather and boil‐proof tannin‐based cold‐setting adhesives for wood, satisfying the requirements of international standards, have been prepared and optimized by halving the amount of resorcinol chemical added to the tannin. Sulfitation afforded also considerable improvement of the “drying out” time characteristics of these adhesives.