▎ 摘　　要

NOVELTY - Multifunctional sealing agent comprises 0.1-5 pts. wt. amidated graphene oxide, 8-20 pts. wt. film former, 0.5-3 pts. wt. tea powder, 2-5 pts. wt. vitamin C, 2-4 pts. wt. natamycin, 1-3 pts. wt. potassium sorbate, 1-2 pts. wt. penetrant, 0.4-3 pts. wt. pH regulator, and 55-85 pts. wt. water. USE - The sealing agent is useful for spraying or applying to surface of wood. ADVANTAGE - The sealing agent: removes and block harmful gases; is non toxic for environmentally friendly; and absorbs decomposing harmful gas. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the sealing agent, comprising (i) adding amidated graphene oxide in deionized water, stirring, sand grinding, controlling temperature at 30 degrees C for 2-6 hours, discharging and preparing into suspension, and (ii) adding tea powder, vitamin C, natamycin, potassium sorbate, pH regulator, penetrant, uniformly stirring, and emulsifying till pH value of 6-8.