Contact
    Start Publications The effects of tannins on adhesion strength and surface ...
    ←  Publication Finder
    Attension

    The effects of tannins on adhesion strength and surface roughness of varnished wood after accelerated weathering

    Year: 2017

    Journal: J. Coat. Technol. Res., Volume 14, JAN, page 185–193

    Authors: Yalcin, Mesut; Ceylan, Hediye

    Organizations: Directory of Scientific Research Projects of Duzce University [BAP 2014.02.03.262]

    Keywords: Tannin; Varnish; Accelerated weathering; Surface roughness; Adhesion strength

    This study evaluated the effect of accelerated weathering on the adhesion strength and surface roughness of beech wood (Fagus orientalis) treated with mimosa and quebracho extracts and coated with polyurethane, water-based, and cellulosic varnishes. Untreated beech wood blocks and beech wood blocks treated with Tanalith-E were used as control samples. Test samples were exposed to accelerated weathering processes of 100 and 300 h. According to the test results, the mean adhesion strength of the wood samples impregnated with mimosa and quebracho tannins decreased by a maximum of 20%, while increases in the mean surface roughness (R (a)) were detected. The highest adhesion strength and lowest mean surface roughness were obtained with polyurethane varnish. Moreover, the mean adhesion strength increased with the accelerated weathering up to 100 h and then decreased thereafter. As a result of the weathering process, the mean surface roughness increased and was thus negatively affected.
    View publication