The research of scales graphite is mainly focused on the modification and modification of its surface. Usually, the performance of the scales graphite is improved through physical and chemical methods. Cover, surface oxidation, gas deposition, mixing modification and other methods, let's explain in detail the modification and modification method of scales graphite in detail:

1. High temperature heat treatment

After high temperature thermal treatment of scales graphite in the air environment, the graphite of graphite materials has been improved to a certain extent, and the arrangement of layer -like structures is more orderly. High -temperature thermal treatment can effectively remove defects with high activity, making the chemical reaction activity on the surface of the scale graphite.

2. particle size control

Scales graphite is a very sensitive substance in chemical reactions. In different environments, his resistance will change, that is, his resistance value will change, but one thing will not change, because the thickness of graphite is different. The material and ambient resistance value will also be different. It can be used to prepare a natural graphite of different particle size distribution with spray grinding grinding and turbine grinding. As the average particle size decreases, it is conducive to the increase in graphite power, and the change of grinding methods has no significant effect on the nature of graphite materials.

Third, covering method

The composite materials of the legal system modify the artificial graphite. It is covered with a "shell" of a non -fixed carbon material on its surface, which can avoid the shortcomings of graphite carbon materials and have the advantages of composite materials.

Fourth, surface oxidation

The surface oxidation method of scales graphite is mainly divided into gas oxidation method and liquid -phase oxidation method. The gas phase oxidation method uses almost zero -cost air to oxidize graphite materials at appropriate temperature. In the process, because the oxidized liquid can be fully contacted with scales graphite particles, the prepared products are better suitable for industrial production.

Five, doped modification

Introducing certain metal elements or non -metallic elements to scales graphite to improve the performance of graphite materials. The key to mixed and modified is how to uniformly inlaid the mixed nano -level elements in graphite particles to achieve effective contact.