▎ 摘　　要

NOVELTY - High-strength industrial filter cloth comprises a base cloth and a filter layer, where the filter layer is located between two layers of the base cloth, the industrial filter cloth is base cloth and filter layer after hot pressing, soaking by dipping liquid, drying to obtain the product, the filter layer comprises a matrix resin, a polytetrafluoroethylene and a polyphenylene sulfide, the matrix resin is preparation involves a. mixing the deionized water and graphene oxide, adding mixture of 3-chlorine propyl triethoxy silane and absolute ethyl alcohol, ultrasonically dispersing for 10 minutes, then adjusting pH with hydrochloric acid, raising the temperature to 50 ℃, stirring for 1 hour, then raising the temperature to 70 ℃, continuously stirring for 2 hours to obtain the modified graphene; b. mixing the modified graphene and absolute ethyl alcohol, dispersing for 10 minutes under the protection of nitrogen. USE - High strength industrial filter cloth for separating and filtering, or used in chemical industry, medicine, metallurgy and food industry. ADVANTAGE - The industrial filter cloth has high strength, improved dispersibility of graphene, effectively isolates the NO 2, SO 2 and other corrosive gas in the flue gas, and relieves the phenomenon of filter cloth cracking caused by corrosion. The protective layer formed on the surface of the modified graphene improves the wear resistance of the filter cloth. DETAILED DESCRIPTION - High-strength industrial filter cloth comprises a base cloth and a filter layer, where the filter layer is located between two layers of the base cloth, the industrial filter cloth is base cloth and filter layer after hot pressing, soaking by dipping liquid, drying to obtain the product, the filter layer comprises a matrix resin, a polytetrafluoroethylene and a polyphenylene sulfide, the matrix resin is preparation involves a. mixing the deionized water and graphene oxide, adding mixture of 3-chlorine propyl triethoxy silane and absolute ethyl alcohol, ultrasonically dispersing for 10 minutes, then adjusting pH with hydrochloric acid, raising the temperature to 50 ℃, stirring for 1 hour, then raising the temperature to 70 ℃, continuously stirring for 2 hours to obtain the modified graphene; b. mixing the modified graphene and absolute ethyl alcohol, dispersing for 10 minutes under the protection of nitrogen, adding ethyl xanthogenate potassium raising the temperature to 80 ℃, reacting for 16 hours, then dispersing by N N-dimethyl formamide under the protection of nitrogen adding methyl methacrylate and azodiisobutyronitrile under the condition of 60 ℃, stirring and reacting for 18 hours to obtain the matrix resin.