Method for producing modified wood-based material, furan derivative resinification solution, and modified wood-based material

A method of producing a modified wood-based material, the method comprising:

• 1) Impregnating a wood-based material with a furan derivative resinification solution that comprises a furan derivative, an inorganic salt inhibiting polymerization of the furan derivative at normal temperature, and an inorganic salt accelerating polymerization of the furan derivative;
• and
• 2) Polymerizing the furan derivative in the furan derivative resinification solution impregnated into the wood-based material within the wood-based material by means of heating,
• wherein the inorganic salt inhibiting polymerization of the furan derivative at normal temperature is at least one selected from ammonium carbonate and ammonium hydrogen carbonate, wherein the concentration of the inorganic salt inhibiting polymerization of the furan derivative at normal temperature is 0.0001 to 0.004 mol with respect to 1 mol of the furan derivative, and
• the inorganic salt accelerating polymerization of the furan derivative is an inorganic salt formed of an anion selected from a chloride ion and a sulfate ion, and a cation selected from an ammonium ion and a magnesium ion, wherein the concentration of the inorganic salt accelerating polymerization of the furan derivative is 0.001 to 0.1 mol with respect to 1 mol of the furan derivative.