▎ 摘　　要

NOVELTY - Preparing polyglycidyl ether functionalized stable metal/graphene dispersion system comprises (i) preparing hydrophilic hyperbranched polyglycidyl ether by heating and dissolving trimethylolpropane, filling with nitrogen, adding methanol solution of potassium methoxide, dripping glycidol under nitrogen protection, adding methanol and transferring to cation exchange resin column, adding acetone, and vacuum drying to obtain polyglycidyl ether HBP, (ii) obtaining graphene oxide by HUMMERS method, (iii) ultrasonically treating graphene oxide in base solution to obtain a graphene oxide suspension, mixing with hydrophilic hyperbranched polyglycidyl ether to obtain surface-functionalized graphene oxide suspension, and (iv) adding the metal precursor aqueous solution to surface-functionalized graphene oxide suspension of the step (iii), mixing and stirring at 50-100degrees Celsius, adding reducing agent, adjusting pH to 9-12, and reacting for 2-3 hours to obtain the finished product. USE - The method is useful for preparing polyglycidyl ether functionalized stable metal/graphene dispersion system. ADVANTAGE - The method: has strong thermal conductivity, high stability, acid and alkali resistance, simple preparation method and easy popularization. DETAILED DESCRIPTION - Preparing polyglycidyl ether functionalized stable metal/graphene dispersion system comprises (i) preparing hydrophilic hyperbranched polyglycidyl ether by heating and dissolving trimethylolpropane, filling with nitrogen, adding methanol solution of potassium methoxide, evacuating, dripping glycidol under nitrogen protection, reacting for 24-28 hours, adding methanol and transferring to cation exchange resin column for neutralization, evaporating at 60-80degrees Celsius, adding acetone, magnetically stirring for 1-2 hours, allowing to stand for 10-12 hours, and vacuum drying at 30-50degrees Celsius for 10-12 hours to obtain polyglycidyl ether HBP, where the mass ratio of trimethylolpropane and glycidol is 3:40-3:200, and the mass ratio of trimethylolpropane and potassium methoxide is 30:1-32:1, (ii) obtaining graphene oxide by HUMMERS method, (iii) ultrasonically treating graphene oxide in base solution for 20-50 minutes to obtain a graphene oxide suspension, mixing with hydrophilic hyperbranched polyglycidyl ether at room temperature to obtain surface-functionalized graphene oxide suspension, where the mass concentration of the graphene oxide of graphene oxide suspension is 0.0025-0.01 g/ml, and the mass ratio of hydrophilic hyperbranched polyglycidyl ether and graphene oxide is 10:1-30:1, and (iv) adding the metal precursor aqueous solution to surface-functionalized graphene oxide suspension of the step (iii), mixing and stirring at 50-100degrees Celsius, adding reducing agent, adjusting pH to 9-12, and reacting for 2-3 hours to obtain the finished product, where the sum ratio of amount of reducing agent and amount of graphene oxide and metal precursor is 1:1-1.5:1, and the mass ratio of metal precursor and graphene oxide is 1:10-1:1.