pelit, hüseyin düzce üniversitesi - teknoloji fakültesi - ağaç işleri endüstri mühendisliği bölümü, Düzce, Turkey , korkmaz, mustafa düzce üniversitesi - teknoloji fakültesi - ağaç işleri endüstri mühendisliği bölümü, Turkey

Effect of Water Based Varnishes Added Nano-Graphene on the Surface Properties of Beech (Fagus orientalis Lipsky) Wood

29507

In this study, surface glossiness, roughness, hardness, color change, and varnish adhesion resistance properties of beech (Fagus orientalis Lipsky) wood samples coated with nano-graphene (NG) modified water based varnishes were investigated. 0.25%, 0.50% and 1% by weight of NG were added to the water-based varnish and the prepared solution was applied to the samples surfaces. According to the results of the research, the surface glossiness of the samples decreased and the roughness values increased slightly due to the increase of NG in the varnish. On the other hand, the increase in the amount of NG provided significant increases in varnish adhesion resistance up to 25%. The surface hardness value of beech samples increased up to 13% after varnishing. However in contrast to the predicted, effect of NG on hardness values was found to be insignificant. On the other hand, the values of L*, a* and b* decreased significantly with the increase of NG ratio. The samples were darkened and the green-blue color tendency of the samples increased. As a result, it may be recommended that NG addition can be prefer in the water based varnishes to provide high adhesion strength and in the surface darkening process.

203

Surface properties , wood material , varnish , graphene

Journal Of Polytechnic

212