▎ 摘　　要

NOVELTY - Preparing high concentration graphene concentrated dispersion liquid comprises (i) adding graphene into the solvent to obtain a premixed solution, where the mass fraction of graphene in the premixed solution is 0.5%, (ii) stirring the premixed solution and ultrasonically amplifying by a probe type ultrasonic disperser to obtain a mixed solution, (iii) obtaining 0.5% graphite dispersion, (iv) obtaining 1% high concentration graphene concentrated dispersion, (v) obtaining 2% concentrated graphene concentrated dispersion, (vi) adding graphene into 2% graphene dispersion, repeating steps (ii) to (iii) to obtain 3% concentrated graphene concentrated dispersion, (vii) adding graphene into 3% graphene dispersion, repeating steps (ii) to (iii) to obtain 4% concentrated graphene concentrated dispersion and (viii) adding graphene to 4% graphene dispersion and repeating steps (ii) to (iii) to obtain 5% concentrated concentrate of high concentration of graphene. USE - The method is useful for preparing high concentration graphene concentrated dispersion liquid. DETAILED DESCRIPTION - Preparing high concentration graphene concentrated dispersion liquid comprises (i) adding graphene into the solvent to obtain a premixed solution, where the mass fraction of graphene in the premixed solution is 0.5%, (ii) stirring the premixed solution and ultrasonically amplifying by a probe type ultrasonic disperser to obtain a mixed solution, (iii) adding the mixture to the high pressure homogenizer hopper, turning on the high pressure homogenizer, crushing 2-3 times at a homogenization pressure of 300-700 bar, crushing the mixture twice to three times at a homogenization pressure of 700-1000 bar to obtain 0.5% graphite dispersion, (iv) adding graphene into 0.5% graphene dispersion, repeating steps (ii) to (iii) to obtain 1% high concentration graphene concentrated dispersion, (v) adding graphene into 1% graphene dispersion, repeating steps (ii) to (iii) to obtain 2% concentrated graphene concentrated dispersion, (vi) adding graphene into 2% graphene dispersion, repeating steps (ii) to (iii) to obtain 3% concentrated graphene concentrated dispersion, (vii) adding graphene into 3% graphene dispersion, repeating steps (ii) to (iii) to obtain 4% concentrated graphene concentrated dispersion and (viii) adding graphene to 4% graphene dispersion and repeating steps (ii) to (iii) to obtain 5% concentrated concentrate of high concentration of graphene.