▎ 摘　　要

NOVELTY - Graphene composite polyethylene terephthalate (PET) master batch comprises graphene, aniline monomer, caffeic acid, silane coupling agent, filler, microcrystalline cellulose, oxidant, solvent and polyfluortetraethylene, where the filler is silicon dioxide, aluminum sesquioxide, aluminum powder, titanium dioxide and/or pyrophyllite powder, the oxidant is potassium permanganate, hydrogen peroxide or peroxyacetic acid, the solvent is ethanol or acetone, and the graphene is 3-10 layers of graphene. USE - Used as graphene composite polyethylene terephthalate master batch. DETAILED DESCRIPTION - Graphene composite polyethylene terephthalate (PET) master batch comprises 10-29 pts. wt. graphene, 5-10 pts. wt. aniline monomer, 5-10 pts. wt. caffeic acid, 1-3 pts. wt. silane coupling agent, 15-30 pts. wt. filler, 1-2 pts. wt. microcrystalline cellulose, 1-3 pts. wt. oxidant, 10-30 pts. wt. solvent and 1-3 pts. wt. polyfluortetraethylene, where the filler is silicon dioxide, aluminum sesquioxide, aluminum powder, titanium dioxide and/or pyrophyllite powder, the oxidant is potassium permanganate, hydrogen peroxide or peroxyacetic acid, the solvent is ethanol or acetone, and the graphene is 3-10 layers of graphene. INDEPENDENT CLAIMS are also included for: (1) preparing graphene composite PET master batch comprising (i) adding aniline monomer, polytetrafluoroethylene into graphene oxide, heating to promote dissolving and stirring uniformly to obtain mixture A, (ii) adding caffeic acid, microcrystalline cellulose into the mixture A, and stirring uniformly to obtain mixture B, (iii) adding silane coupling agent, filler, oxidant and solvent into the mixture B, and mixing uniformly, and solidifying to obtain final product; (2) graphene composite PET fiber comprising 10-25 pts. wt. composite master batch, 70-90 pts. wt. PET, 30-40 pts. wt. solvent and 2-5 pts. wt. surfactant; and (3) preparing graphene composite PET fiber comprising (a) ultrasonic dispersing compound master-batches in solvent to obtain composite mother particle suspension, then mixing composite master batch suspension with surfactant and stirring uniformly to obtain uniformly dispersed composite master batch solution, (b) extruding and drawing into a wire to obtain PET wire, (c) adding the PET wire through composite master batch solution to obtain the composite master batch with PET yarn, and (d) rolling the PET wire into a ball, re-melting and extruding into graphene composite PET fibers.