Thesis Type: Postgraduate
Institution Of The Thesis: Gazi Üniversitesi, Fen Bilimleri Enstitüsü, Turkey
Approval Date: 2019
Student: RAMAZAN BÜLBÜL
Supervisor: HAKAN KESKİN
Abstract:This study was carried out to determine the impacts of impregnation with Tanalith-E on surface roughness and bonding strength of solid wood materials. For this purpose, Oriental beech (Fagus orientalis Lipsky), Scots pine (Pinus sylvestris Lipsky), European oak (Quercus petraea Liebl.) and Uludag fir (Abies nordmanniana subsp. bornmüllerana Mattf.) woods widely used in our country are impregnated with Tanalith-E impregnation solution for short term (10 minutes) and medium term (2 hours) immersion method according to ASTM D 1413 standard. The impregnated test specimens were glued with polyvinylacetate (PVAc D3) and polyurethane adhesives (Desmodur-VTKA D4) according to TS EN 204 principles and the bonding strength values of the samples were determined according to TS EN 205 standard. The surface roughness of the wood is determined according to the principles of TS EN 971 standards.According to tree species, the highest mean Ra roughness values; short-term impregnated stemless oak (5.22 μm) was obtained in beech (4.80 μm), fir (3.42 μm) and yellow pine (3.03 μm) respectively. Medium-term impregnated oval (6,42 μm), beech (5,020 μm), fir (4,24 μm) and yellow pine (3,74 μm) were obtained. As a result, short-term and medium-term impregnation processes with Tanalith-E decreased the bonding strength and increased the surface roughness values. Tanalith-E impregnated wood materials; In places where high bonding strength values are desired, it can be suggested to use Oriental beech wood by gluing with Desmodur-VTKA and the use of Scots pine where the surface roughness is required.