Univerzita Pardubice Fakulta chemicko- technologická

Univerzita Pardubice

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English

Publikace detail

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

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

Rok: 2017

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
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