NOVEL SPECIALTY DISPERSANT FOR CARBON BLACK IN INDUSTRIAL WATERBORNE SYSTEMS

[...]better color development and gloss can be obtained on the resultant film as the pigment dispersion remains stable. Throughout the process of evaluating the structural attributes of dispersants made with our chemistry, focus remained on identifying the most promising candidates.7 In addition to dispersion viscosity and paint compatibility, a number of additional criteria were examined, including dispersion stability, dispersant demand, milling efficiency, paint color development and product form. Industrial-Grade Carbon Black Depending on the raw materials used and the method of manufacturing, carbon black can have a surprising range of different structures, physical forms and surface area values.8-9 In the case of carbon blacks that are used for industrial applications, they tend to have much higher surface areas compared to their architectural counterparts. [...]the rapid reduction in particle size suggests that Dispersant 61 is more effective at wetting than the controls tested.