Waterborne Acrylic-Casein Latexes as Eco-friendly Binders for Coatings

PICCHIO, MATÍAS L.; PASSEGGI, MARIO C.G.(JR); BARANDIARAN, MARÍA J.; GUGLIOTTA, LUIS M.; MINARI, ROQUE J.

PROGRESS IN ORGANIC COATINGS

ELSEVIER SCIENCE SA

Lugar: Amsterdam; Año: 2015 vol. 88 p. 8 - 16

0300-9440

The use of casein as renewable resource to produce eco-friendly hybrid latexes has an increasing importance in industrial applications especially for high performance waterborne coatings. This work describes the synthesis of hybrid acrylic-casein latexes by emulsion polymerization of acrylic monomers in presence of varied casein concentration, and in absence of emulsifier which is usually a challenge for preparing stable nanocomposite latexes. The production and microstructure characterization of the casein-acrylic nanoparticles, as well as the properties of the films obtained from the hybrid latexes are here reported. The synthesized acrylic-casein latexes are able to form films with promising properties for a potential application as waterborne bio-based coatings.