Yan Song1,2, Zhixin Wang3, Xin Zhang4, Rong Zhang1, Jinchun Li1,2,*
Journal of Renewable Materials, Vol.9, No.5, pp. 943-957, 2021, DOI:10.32604/jrm.2021.014131
Abstract Lignin is a natural biopolymer with a complex three-dimensional network, commercially obtained from waste
liquid of paper pulp and bioethanol production, and could be a candidate for preparation of environment-friendly
bio-based polyphenol material. In the present work, the demethylated wheat straw alkali lignin (D-Lig), prepared
by demethylation of wheat straw alkali lignin (Lig) using an in-situ generated Lewis acid, was used to synthesize
bio-based phenol formaldehyde resin adhesive (D-LPF) applied in plywood. Effects of synthetic process’s factors,
including lignin substitution for phenol, NaOH concentration and molar ratio of formaldehyde to phenol, on the
bonding strength and free formaldehyde content of… More >
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