Chitosan-hybridized acrylic resins prepared in emulsion polymerizations and their application as interior finishing coatings

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By this author: Wada, Tamaki ;&nbsp; Uragami, Tadashi ;&nbsp; Matoba, Yasuhiro

Authors: Wada, Tamaki; Uragami, Tadashi; Matoba, Yasuhiro

Source: Journal of Coatings Technology and Research, Volume 2, Number 3, July 2005 , pp. 577-592(16)

Publisher: Springer

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Abstract:

Chitosan was used to introduce formaldehyde adsorption abilities into an emulsion binder for interior finishing coatings. Chitosan-hybridized acrylic emulisions were prepared by two methods. To produce stable chitosan-hybridized acrylic emulsions, the pre-emulsion dropping method is superior to the monomer dropping method. The adsorption performances for fonnaldehyde in chitosan-hybridized acrylic resin films increased with increasing chitosan contents; the films also had adsorption abilities for hydrogen sulfide and ammonia. Tensile strengths and elongation at breaking points decreased with increasing chitosan contents. Interior finishing coatings made from chitosan-hybridized acrylic resin emulsions have the qualities necessary for an interior finishing coating and showed excellent adsorption abilities for formaldehyde.

Keywords: Acrylics; latexes; colloids; emulsions; waterborne; mechanical properties; architectural; water-based; air quality; emissions; VOC control