LIGNIN RESIN COMPOSITION, RESIN MOLDED ARTICLE, PREPREG, AND MOLDING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a resin composition comprising a lignin derivative having a high hot-melt property and high reactivity with an epoxy or isocyanate, and to provide a resin molded article comprising a lignin derivative, which shows a fast molding cycle and a high glass transition temperature.SOLUTION: The resin composition comprises a lignin derivative and a crosslinking agent, and contains a lignin derivative having at least one phenolic structure in the structure thereof as the lignin derivative and a crosslinking agent having an epoxy group or an isocyanate group as the crosslinking agent. The lignin derivative is a decomposed produce of a lignin component included in biomass, to which a phenolic structure is added.