The size of the colloidal particles should be theoretically between 0.1 μm and 0.01 μm. In fact, the general Colloidal Graphite products, the size of Graphite particles, and more in the 1μm to several microns. Colloidal graphite sedimentation speed is very slow, to maintain a uniform dispersion of the state; when the colloidal graphite drying was coating state, the graphite particles easily coated with adhesion, with a strong coating adhesion scale, fine The graphite particles are arranged in parallel on the coated surface, the coating is in a dense state, the surface of the coating film becomes smooth, the cohesive force of the coating film is strong, and the conductivity and lubricity are good. In the colloidal graphite process, to make the colloidal particles of graphite dispersed, the graphite particles must be finely treated, that is, fine pulverization. At the same time must be graphite particles in the water for the dispersion at present, the formation of black viscous colloidal liquid. This is why colloidal graphite is also called colloidal graphite. The use of colloidal graphite can produce conductive coatings, precision forging lubricants, colloidal graphite lubricants, wire drawing lubricants and kinescope special colloidal graphite, automotive engine special lubricants. It is also widely used in the production of catalyst in the release of lubricants, powder metallurgy release agent, battery-specific carbon film resistors, conductive dry film are required colloidal graphite, rubber industry to do additives, improvers and so on.
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