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Formulating Waterborne Acrylic Polymers for Industrial Coatings


This lecture introduces acrylic polymer technology and its use in paints and coatings, with an emphasis on waterborne latex polymers.  The composition and morphology of acrylic latex polymers is discussed, focusing on how they affect performance properties of both the wet coating and the final dry film.  Latex film formation will be described, including the impact of coalescent selection and drying conditions (temperature, humidity) on the process, and ultimately discussing how film formation relates to final film properties.   Rheology is an important aspect of formulating, and the common types of thickeners used with latex coatings and their mechanisms will be covered. Crosslinking is useful to improve certain film properties, and various chemistries for crosslinking acrylic coatings and their effect on formulation and performance will be described.