As a kind of important inorganic non-metallic materials, expandable graphite possesses superconducting, hydrogen storage properties, catalytic chemical reaction , acid and alkali resistance, high temperature resistance, tensile, compressive, radiation resistance, good bending elasticity. It can be used in electrode materials, oil chemical industry, fire retardant, oil absorption material, environmental protection, medical dressings, military smoke agent and antistatic coatings, etc.