Investigation of Roughness and Adhesion Strength Properties of Pine and Poplar Wood Heat Treated in Air and under Vacuum after Artificial Aging

Heat treatment is an eco-friendly and efficient way to improve the defective properties of wood, such as its hygroscopic nature, lack dimensional stability, low resistance against biological degradation, produce a green sustainable wood material for construction buildings. However, these treatments alter substrates could influence performance coating products necessary maintain surface features in certain end-use sectors. In this study, effects heat air (HT) under vacuum (VHT) on Scots pine (Pinus sylvestris L.) poplar (Populus euramericana) were investigated. For purpose, samples exposed artificial aging process. After process, roughness adhesion strength behavior measured. HT VHT, showed different roughness. While value parallel fibers decreased it increased wood. The perpendicular both tree species. maximum after UV was 62,622 VHT-200 group. Although with ageing treatment, treated air, subjected treatment. A lower loss observed heat-treated processed compared air.