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Ali Javadi

Evonik Corporation

Process Breakthrough Makes Silica Easy to Disperse: Easy to Disperse Fumed Silica Technology Reduces Equipment Demand, Processing Time, and Expense

Abstract

The field of coatings technology has utilized many forms of fumed silica in the last 70 years. Due to highly adaptable surfaces and structure, numerous grades have been developed over the decades to provide functional solutions to many coatings problems. Successful use of technology is contingent on adequate dispersion, which often requires some type of milling technology. Now, an innovative downstream process breakthrough has created an easy-to-disperse fumed silica design on an experimental scale to enable formulators to use technology without the need for high-intensity milling. Historically, there are many tailor-made designs that resulted from fumed silica’s adaptable character. These tailor-made designs create performance attributes including rheological flow control, suspension, reinforcement, scratch resistance using standard high-speed dispersion which replaces more intense bead milling to achieve high efficiency. This paper will compare performance using both forms of dispersion; standard high-speed dissolver type compared to bead-mill type to demonstrate the easy-to-disperse innovation.

Biography

Ali Javadi received two Ph.D. degrees in Organic Chemistry and Polymer Engineering from Kharazmi University and the University of Akron, respectively. Ali joined the Coating Additives business line of Evonik in February 2021. Prior to joining Evonik, he worked as an R&D Scientist in Sherwin-Williams. Ali has more than fifteen years of experience in developing new monomers, polymers, and coatings, with a focus on understanding chemical structure-property relationships. His research has been published in numerous high-impact peer-reviewed journals. He has also served as a reviewer and editorial board member for several scientific journals.