▎ 摘　　要

NOVELTY - Preparation of graphene composite graphite micropowder foam extinguishing agent, involves ultrasonically stir-mixing graphite micropowder and graphene oxide solution in a graphene oxide/graphite particle mass ratio of 1:50-1:200, adding an acid to the solution, reducing graphene oxide and coating the surface of graphite, adding industrial gelatin to the dispersion, stirring continuously to set the total concentration to less than 10%, preferably 8%, sealing and heating in a hydrothermal kettle, cooling the product, adjusting the pH, ultrasonically dispersing, and adding 4 g/L lauryl alcohol as foam stabilizer. USE - Preparation of graphene composite graphite micropowder foam extinguishing agent (claimed). ADVANTAGE - The method uses graphite micropowder surface composite graphene, which greatly increases the surface active sites and improves dispersibility, and reduces additional energy consumption.