▎ 摘　　要

NOVELTY - A zirconia nanotubes-graphene oxide-melamine resin composite contains 2-3 pts. wt. zirconia nanotubes, 20-25 pts. wt. melamine resin, 40-45 pts. wt. 37% aqueous formaldehyde, 1.8-2.1 pts. wt. graphene oxide, 0.7-0.9 pt. wt. trifluoroethyl methacrylate, 0.7-0.9 pt. wt. polyacrylonitrile, 0.2-0.3 pt. wt. polyethylene oxide, 0.3-0.5 pt. wt. tert-butyl hydroperoxide, dimethylformamide, cosolvent comprising dimethylformamide/dichloromethane in volume ratio of 1:1, citric acid, AMP-95 (RTM: 2-Amino-2-methyl-1-propanol) as alkaline pH adjusting agent and ethanol. USE - zirconia nanotubes-graphene oxide-melamine resin composite (claimed). ADVANTAGE - The zirconia nanotubes-graphene oxide-melamine resin composite has excellent thermal conductivity, abrasion resistance, flexural strength and fracture toughness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of zirconia nanotubes-graphene oxide-melamine resin composite, which involves dissolving polyacrylonitrile in dimethylformamide to form 4 wt.% solution (I), dissolving polyethylene oxide in cosolvent to form 4 wt.% solution (II), mixing solutions (I) and (II), adding zirconia nanotubes and graphene oxide to mixed solution, stirring, then adding trifluoroethyl methacrylate and tert-butyl hydroperoxide, heating mixture at 60-70 degrees C, stirring reaction mixture for 1-2 hours, filtering, washing filter cake with ethanol 2-3 times to obtain modified graphene oxide, mixing melamine resin and 37% aqueous formaldehyde, heating mixture at 70-75 degrees C, stirring until the mixture is dissolved completely, adding modified graphene oxide to dissolved mixture, stirring for 10-20 minutes, adding alkaline pH adjusting agent, adjusting pH of mixture to 8-9, reacting the mixture for 3-4 hours to obtain graphene oxide containing melamine resin prepolymer, vacuum-drying prepolymer in oven at 30 degrees C to remove water content, adjusting pH to 5-6 using citric acid, curing in oven at 50 degrees C for 8-9 hours and molding.