EVONIK: Synthetic Silica for Coatings Formulations
Evonik reports that variations in the wet reaction process conditions enable the control of many aspects of final coatings formulations, such as pH, surface area, pore volume, and other structural or morphological effects.
The Coating Additives business line of Evonik recently introduced SPHERILEX® silica wet chemistry technology, with three new products: SPHERILEX DP-0111, SPHERILEX DP-0112, and SPHERILEX DP-0115. According to Evonik, the manufacturing process produces material with a unique spherical particle morphology, providing non-traditional silica benefits to coatings. Variations in the wet reaction process conditions enable the control of many aspects of the final product, such as pH, surface area, pore volume, and other structural or morphological effects.
In coatings, precipitated silica is widely known as a superior matting agent. Its functional characteristics, however, are eventually determined by many differentiators like particle size, size distribution, particle morphology, and more. In other words, the ability to control these aspects enables formulators to control the properties and benefits of the precipitated silica.