Univerzita Pardubice Fakulta chemicko- technologická

Univerzita Pardubice

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Publikace detail

Nový sikativ na bázi vanadu v oxopolymeračně zasychajících nátěrových hmotách

Autoři: Foltýn Tomáš | Rubeš David | Honzíček Jan

Rok: 2023

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Nový sikativ na bázi vanadu v oxopolymeračně zasychajících nátěrových hmotách	The study is focused in finding good alternative for cobalt based driers in alkyd resins because of environmental and health concerns. Currently, manganese carboxylates are used instead of cobalt driers, but they do not have great drying performance when used alone. Another option is iron based drier, which has great performance, but it is expensive. In this study, drying properties of a new vanadium compound developed in our laboratory were studied on series of solvent-borne alkyd resins and high-solid binders. Commercial cobalt 2-ethylhexanoate (Co-Nuodex) and iron-based catalyst (OXY-Coat) were used as a reference. Catalytic activity of the vanadium compound was followed by B.-K. drying recorder, which recorded drying time, and by Persoz pendulum test, which recorded relative hardness. Colorimetry test using CIELAB system was also performed. On selected alkyd paints, tensile strength test was performed. These tests have shown that vanadium based drier is more effective than commercial cobalt based drier. Vanadium catalyst achieved shorter drying times in low concentrations and higher relative hardness. Colorimetry tests have shown that the vanadium based drier is coloring paints only when higher concentration is used