Preparation of expanded graphite material is high purity natural flake graphite, carbon content of 99% or more, flake graphite with certain chemical reactions between cambium compounds, the graphite interlayer compounds for instantaneous processing, make it decomposed to produce thrust, graphite interlayer expansion and get the parent metal of flexible graphite is expanded graphite particles.Today I'm going to explain how expanded graphite particles are made:

The preparation of expanded graphite particles usually requires two methods: oxidation etching treatment and high temperature expansion treatment.

1. Preparation of expanded graphite particles by high-temperature expansion treatment.

High temperature expansion treatment, after the acid oxidation etching treatment or anode electrolysis treatment of graphite, after washing, can be directly or appropriate drying treatment for high temperature expansion treatment.

2. Preparation of expanded graphite particles by oxidative etching.

The structure of natural flake graphite consists of a hexagonal network of layers of carbon atoms. These planes are basically parallel to each other. At the same level within a certain distance between adjacent carbon atoms, the cohesive strength between level is weak, so through the appropriate oxidizing etching treatment of medium and high temperature treatment, namely between the crystal layer is opened or be pulled, make whole graphite crystal particles significantly expand, and in the level of inflation after processing it structure basic remain unchanged.

    The above is an introduction to the preparation of expanded graphite particles. Tianshengda Graphite Co.,Ltd provides customers with expanded graphite, flake graphite, graphite powder and other graphite products all the year round. The processed products are of high quality and low price, and are well received by customers. You are welcome.