The fine flake expansive graphite applied to fireproofing coating was prepared with sulphuric acid,nitric acid and iron chloride as intercalation inserters under strong oxidization.

• 以硫酸、硝酸、氯化铁为浸泡剂,在强氧化剂的作用下,对防火涂料用可膨胀石墨的制备进行了研究,探讨了各种因素对石墨膨胀容积的影响。