Publication detail

Control of surface properties of transparent water borne lacquers based on acrylic latexes

Authors: Machotová Jana | Černošková Eva | Rückerová Adéla | Puková Kateřina

Year: 2017

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
eng	Control of surface properties of transparent water borne lacquers based on acrylic latexes	In this study, core-shell latexes comprising copolymerized perfluorethyl groups in particle shell were prepared by the semi-continuous non-seeded emulsion polymerization of 2,2,2-trifluorethyl methacrylate, methyl methacrylate, butyl acrylate and methacrylic acid as main monomers. The effects of pre- and post-coalescence crosslinking on coating hydrophobicity were investigated with respect to temperature and relative humidity changes during the film-forming process. The pre-coalescence crosslinking of latex particles was achieved by copolymerizing allylmethacrylate during the synthesis. For the post-coalescence crosslinking, diacetone acrylamide was copolymerized into the shell layer of latex particles to provide sites for subsequent reaction with adipic acid dihydrazide. The results confirmed theoretical predictions and described empirically the effects of crosslinking, temperature and relative humidity on hydrophobicity and water sensitivity of fluorine-containing coatings.	Emulsion polymerization; fluoropolymer; keto-hydrazide;crosslinking; hydrophobicity

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