Publikace detail

OXO-VANADIUM COMPLEXES OF DITHIOCARBAMATES AS AN ALTERNATIVE DRIERS FOR ALKYD RESINS

Autoři: Charamzová Iva | Honzíček Jan | Vinklárek Jaromír

Rok: 2019

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	OXO-VANADIUM COMPLEXES OF DITHIOCARBAMATES AS AN ALTERNATIVE DRIERS FOR ALKYD RESINS	Saturated polyesters modified with triglycerides of polyunsaturated fatty acids synthetized from renewable sources, called alkyd resins, are incessantly subjects of interest for several studies. Briefly, alkyd resins belong to group of binders crosslinked by oxo-polymerization of fatty acids chains containing sensitive C–H bonds on bis-allylic moiety. Therefore, film-forming process is ensured by autoxidation process catalysed by driers. These catalysts are usually transition metal complexes able to undergo oxidation changes. Most common drier used in paint industry is cobalt 2-ethylhexanoate. On the other hand, acknowledge studies determined the toxic properties of cobalt(II) compounds. Current situation leads to a general attempt to find satisfactory replacement. Transition metal dithiocarbamate complexes are used worldwide over the last 50 years for their fungicidal, pesticidal and insecticidal properties. In this study, vanadium-based dithiocarbamate complexes were found to be suitable driers accelerating curing process of several different alkyd resins. The drying activity of tested formulations was primarily described by mechanical methods (determination of drying times by BK method according to ASTM D5895, relative film hardness by pendulum hardness tester according to ISO 1522) and kinetic parameters were determined by FTIR-ATR spectroscopy.	alkyd

Search

Přihlášení pro studenty

Přihlášení pro zaměstnance

Publikace detail

Katedry

Ústavy a pracoviště

Jak nás najdete?

Služby

Často hledáte