The Impacts Of Impregnatıon Wıth Vacsol-Aqua On Surface Roughness And Bondıng Strength Of Solıd Wood Materıals


Thesis Type: Postgraduate

Institution Of The Thesis: Gazi Üniversitesi, Fen Bilimleri Enstitüsü, Turkey

Approval Date: 2016

Student: FATİH TEMEL

Supervisor: HAKAN KESKİN

Abstract:

The aim of this study was to determine the effects of impregnation on the surface roughness and bonding strength of different wood species. For this purpose, test specimens prepared by Scots pine (Pinus sylvestris Lipsky), Uludag fir [Abies nordmanniana (Stev.) subsp. bornmüllerana (Mattf.)] and European Oak (Quercus petraea Liebl.), which are widely used in the outer environment conditions, were impregnated with Vacsol-Aqua and were glued with Polyvinyl Acetate (PVAc) and Desmodur-VTKA Desmodur VTKA (Desmodur Vinil Trieketonol Asetat (D-VTKA) (D-VTKA)). At the impregnated test samples, while the surface roughness was tested according to ISO 4287, the adhesive bonding was tested according to TS EN 205 standard basis. As a consequence of the experimental results, although the Vacsol-Aqua impregnation has caused an increase in the surface roughness, it has caused a decrease in the bonding strength. The maximum value of surface roughness at the impregnated sessile oak test specimens and the maximum value of adhesive strength at the control samples glued with D-VTKA were determined. In the wood materials impregnated with vacsol-Aqua, in the places where the expected surface roughness is low, the usage of scots pine and fir wood is recommended while in the places where the expected bonding strength is high, the usage of sexsile oak glued with D-VTKA is recommended.