Abstract
Abstract Wood fiber of thermo-mechanical pulp type was extracted with neutral organic solvent, dried, and reacted with an electrophilic reagent, ie glycidyl methacrylate (GMA). The adduct formed was reacted in hot press with three types of vinyl monomers (methyl methacrylate. styrene, and butyl methacrylate) in the presence of a free radical initiator (benzoyl peroxide). Modified boards showed significant reduction in thickness swelling as well as improved strength compared to control phenol-formaldehyde boards. GMA-modified methyl methacrylate boards showed the most stability towards wet and dry exposure cycles, whereas GMA-modified butyl methacrylate boards showed the greatest degradation in strength and dimension among the modified boards.
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