Dimensional stabilization of wood treated with tall oil dissolved in different solvents

Ahmet Can,Hüseyin Sivrikaya

doi:10.4067/s0718-221x2016005000029

Abstract

Many water repellents, such as classic wood preservatives have the disadvantage of being harmful to the environment. Therefore, interest increased even eco-friendly, or of biodegradable material. Natural oils (tallow, linseed oil), appears to be capable of preventing the wood water uptake. However, the total amount of oil required to achieve a high penetration of the sapwood. The aim of this study was to investigate the water repellent efficiency of tall oil dissolved in different solvents. As solvents ethanol, methanol, acetone and tall oil water emulsions were used. Scots pine and Uludag fir sapwood samples were impregnated with tall oil formulations. For this purpose we used tall oil/solvents (W/W) at the concentrations of 10% and 20% respectively. Test samples cut into small sizes (20 x 20 x 10 ± 0,2 mm) for water uptake and tangential swelling tests. The tests were carried out based on American Wood Protection Association (AWPA) standard E4 (2003).

Highlights

Wood and wood-based materials have been commonly used in the interior spaces for centuries and constitute preferred multi-purpose materials for exterior applications
Some properties of wood such as moisture content, dimensional stability, biodegradability limited their use in service (Hon and Shiraishi 2001, Temiz et al 2001, Kose et al 2014)
Friendly, biodegradable tall oil treatments are known for reducing the capillary water uptake (Tomak et al 2011, Kose et al 2014, Lahtela and Karki 2014)

Summary

Introduction

Wood and wood-based materials have been commonly used in the interior spaces for centuries and constitute preferred multi-purpose materials for exterior applications. Some properties of wood such as moisture content, dimensional stability, biodegradability limited their use in service (Hon and Shiraishi 2001, Temiz et al 2001, Kose et al 2014). The new, environmentally friendly and effective protection systems, is rEquationuired on wood protection in high humidity environments such as outdoor. Wood preservatives boosts dimensional stability and biological durability by using water repellent with low moisture content. Moisture content is a very effective way to protect the control timber. Friendly, biodegradable tall oil treatments are known for reducing the capillary water uptake (Tomak et al 2011, Kose et al 2014, Lahtela and Karki 2014)

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Methods

Conclusion