flake graphiteAs a functional filler for coatings, it is mainly used for anti-corrosion coatings, fireproof coatings and conductive coatings. As an anti-corrosion material, it is an anti-rust primer made of carbon black, talc and oil, which has good chemical resistance and solvent corrosion resistance. If chemical pigments such as zinc yellow are added to the formula, the anti-rust effect will be better.

Flake graphite manufacturers believe that expandable graphite is used as a fireproof filler, which is a graphite intercalation compound obtained by chemical or electrochemical treatment with natural graphite flakes as raw materials. Under heating conditions, the rapid expansion of the volume of expandable graphite (up to 300 times) to suffocate the flame, while generating expansion material, can isolate the flame, delay or interrupt the spread of the flame, non-combustible, flexible, high surface energy, carbonized layer strength. However, the volume and amount of the expansion body should be appropriately selected. Experiments show that the particle size is 150 m, the expansion rate is 30%, and the dosage is 5%. Graphite can be used directly as a carbon conductive filler or as a composite conductive filler for conductive coatings. However, due to the large amount of graphite flakes, the performance of the coating becomes fragile and its application is limited. To this end, measures were taken to further improve the conductivity of graphite and effectively reduce the amount of graphite flakes added.

Flake graphite manufacturers believe that solvent-free thick film conductive coatings, with good deformation resistance and cracking resistance of chopped fiber materials as functional fillers. The coating has the characteristics of anti-corrosion medium penetration, small curing residual stress, good resistance to matrix deformation and cracking, stable construction performance and long-term static conductivity. It can be used to guide the electrostatic coating of the inner wall of crude oil storage tank. The data show that copper, nickel, silver and other metals are plated on graphite powder by electroless plating technology to prepare composite conductive fillers, which are used in conductive coatings at a dosage of 30%, which not only has good conductivity, but also further improves corrosion resistance.

Among the lithium-ion battery materials, the anode material is the key to determine the battery performance. As a kind of graphite material with high crystallinity, the particle size of flake graphite directly affects the specific surface area of the electrode and the proportion of edge carbon atoms, and has a great influence on the irreversible specific capacity of charging. Therefore, flake graphite plays a vital role in the battery.

Flake graphite has the advantages of high electronic conductivity, large lithium ion diffusion coefficient, high intercalation capacity and low intercalation potential, and is one of the important materials for lithium batteries.

2. The flake graphite can stabilize the voltage of the lithium battery, reduce the internal resistance of the lithium battery, and make the battery storage time longer. Increase the battery life.

3. Flake graphite can reduce the amount of flake graphite powder in lithium batteries and greatly reduce the cost of batteries.

The above is some knowledge about flake graphite, I hope you can seriously learn to understand the relevant knowledge.