▎ 摘　　要

NOVELTY - Graphite oxide-modified water repellent comprises 25-50 pts. wt. reactive polysiloxane, 10-30 pts. wt. emulsifier, 5-10 pts. wt. graphene oxide, 1-5 pts. wt. dispersant, 0.5-5 pts. wt. antifoaming agent, 0.5-1 pts. wt. coupling agent, and 10-50 pts. wt. water. USE - The water repellent is useful for preparing rock wool, mineral wool, expanded perlite and inorganic insulation material (claimed). ADVANTAGE - The water repellent has good hydrophilicity, good matching performance with phenolic resin, has good heat resistance, mechanical properties and weather resistance properties, and improves compressive strength, and rupture strength of wool product. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene oxidie-modified water repellent comprising (i) adding dispersant in diluted alcohol solvent and stirring, adding graphene oxide at normal temperature, and ultrasonically dispersing for 3-6 hours to prepare the graphene oxide dispersion liquid, (ii) sequentially adding reactive polysiloxane and emulsifier into the mixing tank, controlling the reaction temperature at 50-65 degrees C, fully stirring and mixing, and reacting for 0.5-1 hour, and (iii) adding graphene oxide dispersion liquid, antifoaming agent, silane coupling agent and water to the stirred tank, stirring at normal temperature for 1-2 hours, and obtaining graphene oxide-modified water repellent.