Emulsion method
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The preparation of white carbon black by emulsion method utilizes an emulsifier and a surfactant to form nano-sized micro micelles in a water system, and the reaction raw materials are wrapped therein to separate the total reaction into micro-reactions which do not interfere with each other, thereby effectively avoiding Polymerization of silicic acid primary particles.
The white carbon black prepared by the emulsion method has small and uniform particle size, narrow distribution and good dispersibility. At the same time, the disadvantages are also obvious, that is, various organic solvents and emulsifiers used in the reaction may remain in the product, which is difficult to completely remove and affect product performance.
