▎ 摘　　要

NOVELTY - Obtaining (M1) an uniform dispersion of graphene platelets in a liquid by using base paste that comprises carbon nanofibers in form of dry powder and structure with continuous helical graphitic ribbon developing spiral around and along main axis of each of carbon nanofibers, where ribbon comprises stacking of a small number of graphitic layers, intercalant powder and ligand liquid to obtain a uniform dispersion of graphene platelets in a liquid; fragmentation, intercalation and exfoliation stage of base paste; adding liquid to obtain uniform dispersion of graphene platelets. USE - For obtaining a uniform dispersion of graphene platelets in a liquid (claimed). ADVANTAGE - The method obtains uniform dispersion of graphene platelets in a liquid that is carried out avoiding the use of oxidizing agents, such as those used to cause intercalation and exfoliation processes, which are generally hazardous and hard to control, and avoids the use of surfactants to prevent the aggregation of the particles obtained. The method provides application of shear and compressive strengths on the base paste that favor the fragmentation, intercalation and exfoliation of the carbon nanofibers contained in it; provides application of energy using a physical process to obtain a uniform dispersion of graphene platelets in a liquid. The method obtains dispersion of high-quality graphene platelets in a liquid, at an industrial scale, that also avoids the need for additional substances that increase the complexity and cost of the production process such as oxidizing agents that may degrade the graphitic layers, thus affects the quality of the graphene platelets obtained, and are also hazardous and difficult to handle, or surfactants that aid and stabilize the dispersion of the platelets obtained in a liquid medium. DETAILED DESCRIPTION - Obtaining (M1) a uniform dispersion of graphene platelets in a liquid involves: obtaining a base paste by arranging and dosing the following materials: i) carbon nanofibers in the form of dry powder, where the structure of which comprises a continuous helical graphitic ribbon developing a spiral around and along the main axis of each carbon nanofiber, where the ribbon is formed by a stacking of less than eleven graphitic layers, ii) intercalant powder, iii) first ligand liquid, where the upper limit of the liquid-solid ratio expressed as ml of liquid per mg of solid is 0.5 ml for every 1 mg and the lower limit of the liquid-solid ratio expressed as ml of liquid per mg of solid is 0.01 ml for every 1 mg; fragmenting, intercalating and exfoliating the carbon nanofibers that form the base paste obtained in first step, by a combined application of compressive and shear strengths to obtain a modified base paste that comprises graphene platelets; adding a second liquid to the modified base paste that comprises graphene platelets to obtain a dispersion of graphene platelets in the second liquid; providing energy by a physical process to the dispersion of graphene platelets in the second liquid obtained in third step, to obtain a uniform graphene platelet dispersion in a second liquid. An INDEPENDENT CLAIM is included for a graphene platelets corresponding to a Raman spectrum that includes: G peak, D peak, 2D peak, were the ratio of the maximum value of D peak with respect to that of the G peak is 0.14-0.95 and the ratio of the maximum value of the G peak with respect to that of the 2D peak is 0.25-4.