▎ 摘　　要

NOVELTY - Preparing high-hardness, wear-resistant nylon 66 alloy material, comprises e.g.(a) adding dispersant and deionized water into a reaction kettle, stirring and dispersing evenly at low speed, adding graphene powder to continue stirring and dispersing evenly, adding phenol, formaldehyde solution and ammonia water to raise the temperature of the reaction kettle to 70-80 degrees C, increasing the stirring speed and stirring at high speed for 60-80 minutes to obtain a pre-polyphenolic solution of dispersed graphene fine powder; and (b) dropping high-pressure spraying the pre-polymerized phenolic solution of the dispersed graphene fine powder into the coagulation chamber for coagulation, and filtering, washing, and drying to obtain phenolic resin particles of the dispersed graphene powder plasticizing and mixing the material A in the first-stage of the double-stage screw extruder, mixing material A with B in second-stage in hot condition, extruding, air-cooling and cutting grains. USE - The method is useful for preparing a high-hardness, wear-resistant nylon 66 alloy material. ADVANTAGE - The method utilizes: polyphenylene sulfide which is good for reducing the friction coefficient of the nylon 66, and improving abrasion resistance; and inorganic nanometer filler which is good for promoting the hardness and wear resistance of nylon 66. DETAILED DESCRIPTION - Preparing a high-hardness, wear-resistant nylon 66 alloy material, comprises (a) adding dispersant and deionized water into reaction kettle, stirring and dispersing evenly at low speed, adding graphene powder to continue stirring and dispersing evenly at low speed, adding phenol, formaldehyde solution and aqueous ammonia to raise the temperature of the reaction kettle to 70-80 degrees C, increasing the stirring speed and stirring at high speed for 60-80 minutes to obtain a pre-polyphenolic solution of dispersed graphene fine powder; (b) dropping high-pressure spraying the pre-polymerized phenolic solution of the dispersed graphene fine powder into the coagulation chamber for coagulation, and filtering, washing, and drying to obtain phenolic resin particles of the dispersed graphene powder; (c) dispersing graphene powder-dispersed phenolic resin particles and Bakelite (RTM: Phenol-formaldehyde or phenolic resins) powder into material A in a high-speed mixer, molybdenum disulfide, nylon 66, compatibilizer, polyphenylene sulfide, inorganic nano fillers, antioxidants and lubricants are dispersed as material B in the high-speed mixer; and (d), plasticizing and mixing the material A in the first-stage of the double-stage screw extruder at 90-100 degrees C, and, mixing the material A with the material B in the second-stage in hot condition, extruding, air-cooling, and cutting grains. An INDEPENDENT CLAIM is also included for the high-hardness, wear-resistant nylon 66 alloy material prepared by the above mentioned method.