▎ 摘　　要

NOVELTY - Organic-type cooling liquid comprises 30-95 pts. wt. diol, 5-70 pts. wt. deionized water, 0.03-3 pts. wt. carboxylated graphene, 0.5-5 pts. wt. organic acid corrosion inhibitor, 0.01-0.5 pt. wt. azole corrosion inhibitor, 0.001-0.01 pt. wt. defoamer and 0.01-0.05 pt. wt. dye. USE - Organic-type cooling liquid is useful for engine. ADVANTAGE - The cooling liquid has excellent corrosion resistance and high-heat resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation method of the cooling liquid, which involves uniformly mixing diol and deionized water under stirring condition to obtain a base liquid, adding organic acid corrosion inhibitor and carboxylated graphene to the base liquid, fully stirring until the mixture is completely dissolved to obtain a mixed solution (I), adding azole corrosion inhibitor to the mixed solution (I), fully stirring until the mixture is completely dissolved to obtain a mixed solution (II), adding defoamer to the mixed solution (II), fully stirring until the mixture is completely dissolved to obtain a clear transparent solution, adding dye to the clear transparent solution, and fully stirring until the mixture is completely dissolved to obtain cooling liquid.