The Importance Of Carbon Black Dispersion
Apr 16, 2021
The importance of carbon black dispersion
During the application process, the pigment must be dispersed to the state of fine particles that meet the optical properties. Carbon black is one of the most difficult to disperse among all pigments. Therefore, the dispersion of carbon black will directly affect the blackness and hue of carbon black. And covering ability, directly affect the user's final use effect.
Carbon black dispersion equipment
Carbon black shape dispersion equipment
Powder three-roller, mill, disc disperser, extruder, high-speed mixer
Granular internal mixer, double roll mill, ball mill, sand mill
The dispersion process of carbon black is mainly affected by three factors
a) The essential characteristics of carbon black: the original particle size, structure and surface groups of carbon black will have a great influence on dispersion. Normally, carbon black has a small original particle size, low structure, and low volatile content. It is difficult to disperse, otherwise it is relatively easy.
b) User's formula: The carbon black user's formula, base material, solvent and resin properties will all significantly affect the final dispersion of carbon black, especially the choice of resin for carbon black.
c) Dispersing equipment: The dispersing effects of different dispersing equipment under the same conditions are completely different. The correct selection of dispersing equipment is what users must pay attention to.
