▎ 摘　　要

NOVELTY - Preparing heat-induced flexible phase change energy storage wood comprises (a) using N,N-dimethyl formamide as solvent, preparing 50-70 pts. wt. triethanolamine solution (0.05-0.2 mol/l) and 40-60 pts. wt. triphenylmethanetriisocyanate solution (0.1-0.4 mol/l), (b) adding the triethanolamine solution into the triphenylmethanetriisocyanate solution, stirring for 10-15 hours under 60-80 degrees C to obtain the prepolymer, (c) adding 10-20 pts. wt. polyethylene glycol 1500 to the prepolymer, stirring for 20-30 hours under 60-80 degrees C, obtaining solid-solid phase change material and (d) placing the delignification wood into the solid-solid phase change material, vacuum dipping for 20-40 minutes and drying to obtain the finished product. USE - The method is useful for preparing heat-induced flexible phase change energy storage wood. ADVANTAGE - The wood has heat storage, energy storage and good flexibility.