Fine Flake Graphite Expansion Study Of The Mechanism

The process conditions and mechanism of preparing expand graphite by using cheap fine flake graphite as raw material was primarily studied in this paper. The best process condition of synthesizing expand graphite from fine flake graphite was determined via orthogonal experiments. The surface morphology and microstructure of raw graphite, like-expand graphite and expand graphite was characterized and analysed by using SEM, XRD method. The mechanism of preparing expand graphite from fine flake graphite was summarized, the expanding mechanism was similar to big flake graphite's. The basic discipline of granularity effect on the microstructure of expand graphite was also summed up. The research has instructing meaning on industrial production of expand graphite and correlative flexibility materials from fine flake graphite. It enriches theoretical study of expand graphite, opens up and utilizes the sources of fine flake graphite, and has important theoretical value and realistic significance.