▎ 摘 要
NOVELTY - The method involves continuously stirring and adding a graphene into sodium alginate solution until graphene is uniformly dispersed. Sodium alginategraphene solution is slowly injected after standing into a calcium chloride solution for continuously stirring for 1-2 hours at uniform speed to obtain gel in a mixture. The mixture is filtered and washed by gel for drying to obtain crystalline solid. A solid is crystallized after pyrolysis for cooling to room temperature for grinding and sieving to obtain pyrolytic carbon. Water washing is performed until pH value is neutral and drying and storing. USE - Method for preparing an adjustable conductivity type pyrolytic carbon material used in a portable electronic product, electric bicycle, electric automobile and energy storage field. ADVANTAGE - The method uses the good absorption of sodium alginate solution, making the graphene uniformly distributed in the solution, improving the conductivity of the pyrolytic carbon, at the same time, the addition of the graphene has little influence to the other properties of the material. The method is simple and easy, through the design of raw material and reaction condition, it can control and change the material conductivity. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical view representation illustrating the method for preparing an adjustable conductivity type pyrolytic carbon material. (Drawing includes non-English language text).