High-rate self-temperature-control graphene powder, self-temperature-control ink and graphene self-temperature-control heating coating

The invention provides high-rate self-temperature-control graphene powder, low-resistance self-temperature-control printing ink and a graphene self-temperature-control heating coating, and belongs to the technical field of temperature control materials. The preparation method comprises the following steps: preparing a self-temperature-control low-molecular polymer emulsion; preparing graphene self-temperature-control slurry; drying the graphene self-temperature-control slurry; carrying out heat treatment on the high-rate self-temperature-control graphene powder; and screening the high-rate self-temperature-control graphene powder. The treated high-magnification self-temperature-control graphene powder has the advantages of being good in dispersity, not prone to agglomeration and resistant to voltage impact, the NTC effect is weakened through printing ink and a heating coating made of the powder, and the influence of the printing ink and the heating coating on the self-temperature-control intensity and the ini