Tall oil fatty acid as 100% bio-based building block for alkyd emulsions

 
Many water-borne coatings still have a high degree of fossil fuel based materials. The usage of Tall Oil Fatty Acid (TOFA) as renewable building block derived from Crude Tall Oil refining allows a drastic reduction of fossil fuel dependance. TOFA's main use is in the production of solventborne alkyds. This paper will showcase the impact of TOFA as 100% bio-based material in the development of alkyd emulsions. TOFA, a low carbon footprint building block, improves certain properties of the final alkyd emulsion paint. The first part of this paper will explain how a stable alkyd emulsion is produced in the lab and which parameters are critical during production. The second part of the presentation will compare different fatty acids, their composition and impact on paint properties such as hardness, gloss and gloss retention, yellowing and drying. Finally the sustainability elements and extreme low carbon footprint aspect of TOFA get explained.