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Wednesday, February 19 • 2:00pm - 2:30pm
Fine-tuning Coating Surface Control Through the Use of Modified Siloxanes - Evonik

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Siloxane-based additives are critical tools in coating applications because their structures can be varied to provide a broad range of performance benefits in many types of formulations and chemistries.  Surfactants and defoamers are some of the more commonly recognized additive classes, but many other functionalities can be derived from siloxane chemistries, particularly attributes related to surface control such as flow and leveling, slip, scratch resistance, and haptic properties.  This extensive range of performance is achievable due to the broad flexibility inherent in siloxane chemistry, allowing a fine-tuned balance of compatibility, incompatibility, and surface activity.
As with many additive types, a broad range of functionalities creates many options for improvement and innovation but also presents challenges in finding the right additive and optimizing to achieve the desired performance. This presentation will attempt to clarify the general structure-property relationships that drive the performance attributes of siloxane additives and detail the continuum that exists between wetting, leveling, defoaming and slip within this chemistry class. Surface control properties and testing will be reviewed and related to recent evaluation work conducted in developing novel siloxane surface control additives.

Speakers
avatar for Dr. Ingrid K. Meier

Dr. Ingrid K. Meier

Head of Applied Research & Technology, Decorative Coatings and Inks Americas, Evonik Corporation
Ingrid Meier received her B.S. in Chemistry from Ursinus College and her M.A. and Ph.D. degrees in Chemistry from Princeton University.  She has more than 30 years’ industrial experience as both a senior scientist as well as in regional and global technical managerial positions... Read More →



Wednesday February 19, 2020 2:00pm - 2:30pm
Rhythms II-III