Baritle Emprenyenin (BaSO4) Odunun Fiziksel ve Mekanik Özellikleri Üzerine Etkisi

Öz

Bu çalışmada, baritin ahşapta emprenye etme özellikleri ilk kez araştırılmıştır. Çevreyle ilgili insan sağlığına zararsız olduğu için, bu doğal materyali çeşitli alanlarda (ör. Mobilya ve inşaat) kullanımı amaçlanmıştır. Barit (BaSO₄) solüsyonu farklı konsantrasyonlarda barit (% 1, % 3, % 5) ile hazırlanmış ve ASTM-D 1413-76 standartlarına göre emprenye işlemi yapılmıştır. Bu çalışmada, ağaç türleri olarak Doğu Karadeniz bölgesinden alınan Sarıçam (Pinus sylvestris L.) ve Doğu Kayını (Fagus orientalis Lipsky) kullanılmıştır. Sonuçlar; her iki ahşap türünde, emprenye solüsyonundaki barit konsantrasyonunun artmasıyla, retensiyon %, fiziksel özellikler ve mekanik özelliklerin arttığını göstermiştir. En yüksek yoğunluk (0.63 g/cm³), elastikiyet modülü (16920 N/mm²), eğilme direnci (160.40 N/mm²) ve dinamik eğilme direnci (2.78 kpm/cm²) değerleri, sırasıyla, %1, %5, %50 ve %50’lik derişime sahip çözeltilerle emprenye edilen Kayın odunu örneklerinde elde edilmiştir.

Anahtar Kelimeler

• Barit,Emprenye,Tutunma,Teknolojik Özellikler

The Effects of Impregnation with Barite (BaSO4) on the Physical and Mechanical Properties of Wood Materials

Abstract

The aim of the study was to investigate the effects of Barite on the physical and mechanical properties of wood. Barite as an impregnation material was used to be harmless to environment-related human health. Barite (BaSO₄) solution was prepared with different concentrations of barite (1%, 3%, 5%), and the impregnation process of the samples were conducted according to ASTM-D 1413-76. Scotch pine (Pinus sylvestris L.) and Oriental Beech (Fagus orientalis L.) obtained from the Eastern Black sea region in Turkey were used. According to the results, it showed that each wood types, retention ratio, physical properties, and mechanical properties increased with increasing concentration of barite in the impregnation solution. For the Beech wood, the highest air-dried and dried densities were found to the samples impregnated with solution that had a 1% concentration (0.63 g/cm³); the highest modulus elasticity (MOE) was in samples impregnated with solution that had a 5% concentration (16920 N/mm²); the highest bending strength (MOR) was in samples impregnated with solution that had a 50% concentration (160.40 N/mm²); and the highest dynamic bending strength was in the beech impregnated with solution that had a 50% concentration (2.78 kpm/cm²).

Keywords

• Barite; Impregnation; Retention; Technological properties

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