▎ 摘　　要

NOVELTY - A finishing material additive comprises 40-80 pts. wt. gypsum, 5-35 pts. wt. activated carbon, 2-10 pts. wt. jade powder, 20-35 pts. wt. adsorbing deodorant, 0.1-2 pts. wt. carbon nanotube-graphene composite, and 0.1-2 pts. wt. nano-silica, and is prepared by carbonizing the cut bamboo, oak and pine at 1000-1500 degrees C to produce activated carbon, screening activated carbon, separating, grinding, and screening, graft polymerizing deodorant and graft polymer with electron beam, mixing carbon nanotube and graphene powder, stirring and heating to obtain carbon nanotube-graphene composite. USE - Environmentally-friendly finishing material additive of finishing material composition (claimed) for building. ADVANTAGE - The environmentally-friendly finishing material additive has excellent crack resistance, and dimensional stability, and high quality. DETAILED DESCRIPTION - A finishing material additive comprises 40-80 pts. wt. gypsum, 5-35 pts. wt. activated carbon, 2-10 pts. wt. jade powder having 300-500 mesh, 20-35 pts. wt. adsorbing deodorant, 0.1-2 pts. wt. carbon nanotube-graphene composite, and 0.1-2 pts. wt. nano-silica, and is prepared by cutting bamboo, oak and pine trees to length of 500-1000 mm, carbonizing the bamboo, oak and pine at 1000-1500 degrees C to produce activated carbon, screening each of the activated carbon, separating, grinding, and screening to 50-250 mesh, graft polymerizing the deodorant and graft polymer with electron beam, mixing carbon nanotube and graphene powder, stirring and heating at 700 degrees C to obtain carbon nanotube-graphene composite. The adsorbing deodorant comprises diatomaceous earth, zeolite, absorber, light gel, or alginic acid. An INDEPENDENT CLAIM is included for finishing material composition.