VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Iron as an alternative drier for curing of high-solid alkyd coatings
    Pirš, Barbara, 1984- ...
    Alkyds are widely used polymers in coating industry for decorative and industrial applications due to their low price, performance, diversity and containment of renewable constituents. They have been ... of particular interest in research over the past decade owing to new legislative requirements focused on the reduction of volatile organic coatings (VOC) and the replacement of Cobalt (Co) driers. In the present work the commercially accessible Fe (bispidon) drier and the Co (bis (2- ethylhexanoate)) drier were studied in High Solid (HS) alkyd coatings that are consistent with allowed VOC values as stipulated by actual EU legislation. Curing kinetic properties of the alkyd oxidation process was analysed using FT-IR spectroscopy. The influence of Fe and Co driers on cross-linking was further evaluated in terms of viscoelastic properties and surface hardness measurements. Finally, cured coating films were compared with the EIS method in order to determine the influence of driers on cross-linked polymer structures and pore resistance of HS alkyd coatings. We compared Fe and Co driers in HS long oil alkyd coatings. Coatings with Fe drier showed comparable final drying times but dissimilar crosslinking kinetic activity compared to Co drier. Fe drier enable more uniformly throughout the entire thickness of the HS alkyd coating and consequently lower diffusion of ions through the film.
    Vir: JCT research. - ISSN 1547-0091 (Vol. 12, no. 6, Nov. 2015, str. 965-974)
    Vrsta gradiva - članek, sestavni del
    Leto - 2015
    Jezik - angleški
    COBISS.SI-ID - 18923798
    DOI

vir: JCT research. - ISSN 1547-0091 (Vol. 12, no. 6, Nov. 2015, str. 965-974)
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