The Effects of Wood Bleaching Chemicals on The Surface Gloss and the Adhesion Strength of Varnishes

Authors : Ayhan ÖZÇİFÇİ, Musa ATAR

Pages : 763-770

View : 23 | Download : 6

Publication Date : 1999-07-01

Article Type : Research Paper

Abstract :In this research, sodium hydroxide + hydrogen peroxide, sodium hydroxide + calcium hydroxide + hydrogen peroxide, hypochlorite and hydrochloric acid were applied to pine insert ignore into journalissuearticles values(Pinus sylvestris L);, oriental beech insert ignore into journalissuearticles values(Fagus orientalis Lipsky);, ash wood insert ignore into journalissuearticles values(Fraxinus lanceolata); and oak insert ignore into journalissuearticles values(Quercus petraea spp.); for bleaching. Next, acrylic, synthetic, polyurethane and acid-catalyzed varnishes aplied on the bleached wood samples. Afterwards, the effects of these bleaches on the surface brightness and the adhession strength of varnishes were studied. The results indicate that the bleaching agents used did not affect surface gloss, whereas the type of wood and varnish did. Acrylic varnish yielded the glossiest surface while acid-catalyzed varnishes gave the least glossy surface. It was determined that the HCI solution had decreased the adhesion strength of varnishes.
Keywords : Turk J Agric For, 23, 1999, 763 770 Turk J Agric For, vol 23, iss EK3