▎ 摘 要
NOVELTY - Preparing ABC classed dry powder extinguisher comprises adding wet monoammonium phosphate, sodium bicarbonate, diatomite, graphene composite, gas phase white carbon black, silicone oil, stirring and then heating at constant temperature under hot air to obtain final product. USE - The method is useful for preparing ABC classed dry powder extinguisher. ADVANTAGE - The extinguisher: has low cost and high flame extinguishing efficiency.