▎ 摘　　要

NOVELTY - Aqueous release agent comprises 20-30 pts. wt. mercaptopolysiloxane (I), 0.5-5 pts. wt. organic solvent, 0.1-0.3 pt. wt. emulsifier, 0.5-2 pts. wt. pH regulator, 0.1-0.5 pt. wt. graphene oxide aqueous solution, and 70-80 pts. wt. deionized water, where the concentration of the graphene oxide aqueous solution is 5-15 %mass. USE - The aqueous release agent useful for resin-based composite material. ADVANTAGE - The aqueous release agent has excellent film-forming property, wear resistance, dilution, and anti-corrosion and freeze-thaw stability, protects the mold, prolongs the service life of the mold, increases the number of mold releases, and is economical and prepared by simple preparation method. DETAILED DESCRIPTION - Aqueous release agent comprises 20-30 pts. wt. mercaptopolysiloxane (I), 0.5-5 pts. wt. organic solvent, 0.1-0.3 pt. wt. emulsifier, 0.5-2 pts. wt. pH regulator, 0.1-0.5 pt. wt. graphene oxide aqueous solution, and 70-80 pts. wt. deionized water, where the concentration of the graphene oxide aqueous solution is 5-15 %mass, and the structure of mercaptopolysiloxane of formula (I): (-SiR1R2-O-)n-(CH2-CH2-O-CH2CH(OH)a(OOC(CH2)b-SH)cN(CH2CH2OOC(CH2)b-SH)d(CH2CH2OH)e)2. R1 and R2 = methyl or phenyl;and n = 30-20000, where a, b, c, d, e are all integers, d not equal to 0, and satisfy a + c = 1, b = 2-11, and d + e = 2.