Precipitation-Emulsion method
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Emulsion method for the preparation of white carbon black is to use emulsifiers and surfactants to form nano-scale micro micelles in the water system. The reaction raw materials are wrapped in it to separate the total reaction into micro-reactions that do not interfere with each other. Polymerization of silicic acid primary particles.
The white carbon black prepared by the emulsion method has a small and uniform particle size, a narrow distribution, and good dispersibility. At the same time, the disadvantages are also obvious, that is, the various organic solvents and emulsifiers used in the reaction will remain in the product and it is difficult to completely remove it, affecting the product performance.
