▎ 摘　　要

NOVELTY - High stability graphene slurry comprises natural graphite flakes, mixture containing an intercalating agent, auxiliary intercalating agent, oxidizing agent, powder additive, and additive. USE - Used as high stability graphene slurry. ADVANTAGE - The slurry: has excellent stability at room temperature and high temperature storage; and solves the problem that similar products on the market cannot be stored for long time at room temperature or high temperature. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the high stability graphene slurry, comprising (i) pre-purifying the natural graphite flakes, and then placing them in mixture containing intercalating agent, auxiliary intercalating agent and oxidizing agent, stirring, after washing, filtering and drying, placing the treated graphite scales in muffle furnace, and rapidly expanding in high temperature environment under an air atmosphere to obtain fluffy graphite worm, pulverizing to obtain graphene raw material powder A, (ii) subjecting the graphene raw material powder A obtained in the step (i) to high pressure expansion treatment of the powder in supercritical state, and subjecting to high temperature heat treatment in gas atmosphere to obtain processed graphene raw material powder B, (iii) adding the graphene raw material powder B obtained in the step (ii), powder additive to an oily or aqueous system containing one or many additives, premixing and vigorously stirring to carry out dispersion treatment to obtain graphene raw material dispersion liquid, ultrasonically treating the graphene raw material dispersion liquid to obtain a preliminary stripped graphene slurry C, (iv) placing the graphene slurry C obtained in the step (iii) in sanding tank for sanding, filtering to obtain graphene slurry D, and (v) subjecting the graphene slurry D obtained in the step (iv) to ultrasonic or high-pressure dispersion treatment.