Improving the performance of scotch pine (pinus sylvestris) wood surface

Abstract

In this study, the influence of wood stain (WS) and zinc (Zn) particles applied by a plasma process at atmospheric pressure against UV light was investigated. Scots Pine (Pinus sylvestris L.) specimens were prepared from sapwood blocks with dimensions of 15x75x150 mm (HxWxL) according to AWPA Standard E4-03. Weathering tests were performed by cycles of UV-light irradiation for 8 hours, water spray for 15 minutes and followed by a conditioning for 3.45 hours in an Accelerated Weathering Test Cycle chamber. The changes of the surface properties of the coated and uncoated wood samples were studied by color changes, glossiness and Attenuated Total Reflectance Fourier Transform Infrared spectroscopy (ATR-FTIR) to analyze chemical changes on the samples’ surfaces. Zinc coating and wood stain were provided color stability on wood surface. The glossiness of the samples surface was observed decreased after Zn coating, but increase parallel with weathering time, a decrease in WS application.