the effects of different coatings on some surface properties of beech wood

abstract:any effects of wood coating with different compounds as nano-zinc, nano-chitosan, chitosan, silicon oil and flaxseed oil on surface properties as; wood color change, surface roughness and wettability were studied in the current research work. for this purpose, sample boards of beech wood were cut into sizes of 2×10×20cm. the specimens were coated with the noticed coatings and tested for colorimetric, surface roughness and water contact angle before and after coating procedure. results revealed that wood color is changed to quite darker due to coating with varying amounts. wood surface became resistance to water absorption due to increased wettability. chitosan coated samples showed less color changes in comparison with silicon oil coated ones which were quite darker. * * * * * * * * * * * * * * * * * * * * * * * * * keywords: contact angle, discoloration, surface roughness, wettability, nano zinc oxide, nano chitosan, chitosan, silicon oil