A new coalescing agent for high performance waterborne paintBy Marina C. Passarelli, Juliane P. Santos, Natália F. Paula, Robson A. Pagani, Rafael A. Caldato, Raquel da Silva and Silmar B. Barrios - 3rd February 2020
- Stage 1: Evaporation of water and packaging of polymer particles.
- Stage 2: Evaporation of water and deformation of particles with formation of a transparent and brittle film.
- Stage 3: Coalescence or interdiffusion of polymer chains from one particle to another, promoting the formation of a continuous, homogeneous film with high mechanical strength. Coalescence will only occur if the Glass Transition Temperature (Tg) of the polymer is below room temperature.
The excellent hardness evolution of ULTRAFILM 5000 formulated inks is a differential of ULTRAFILM 5000 from market coalescing agents with a boiling point greater than 280oC, allowing it to be used to formulate low VOC interior and exterior paints.
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- GS-11-Green Sea™ Environmental Standard for Paints and Coatings, Edição 2.1, 12 Julho, 2013.
- Juhué D et al, J Polymer Sci Part B 1995;33:1123–33.
ULTRAFILM 5000 is a registered trademark of Oxiteno.