The Wood Surface Protection with Some New Generation Wood Preservatives and Coating Processings Against Weathering Conditions

Öz

In this study, which examines the endurance of environmentally-friendly new generation wood preservation materials and coating processing materials against conditions in the external environment, Celcure AC 500 (Alkaline Copper Quaternary) and MCQ (Micronized Copper Quaternary) wood preservation chemicals and polyurethane based and UV absorbing acrylic resin based coating processing materials were used. After the treatment of aforesaid chemicals prepared in various combinations on different types of wood samples, the samples were exposed to an accelerated weathering test for a duration of 500 hours in a QUV cabin for 18 minutes and a two-hour ultraviolet (UV) cycle. In the study, the color change and surface roughness parameters of wood samples to which coating materials were applied upon being processed with wood preservation materials were compared. The lowest color change value (ΔE*) was found on the surface of the wood sample to which UV absorbing acrylic resin based coating processing materials were applied after being treated with MCQ. It was observed that the application of coating on wood samples protected the surface quality and roughness value at a considerable level while the best quality protection was seen on samples to which polyurethane based coating material was applied.

Anahtar Kelimeler

• Accelerated weathering test
• color change
• surface roughness
• Coating
• Wood preservation

Odun Yüzeylerinin Bazı Yeni Nesil Emprenye Maddeleri ve Üst Yüzey İşlemleri ile Açık Hava Etkilerine Karşı Korunması

Öz

Çevre dostu yeni nesil odun koruma maddeleri ile üst yüzey işlem maddelerinin açık hava koşullarına karşı dayanımının araştırıldığı bu çalışmada; Celcure AC 500 (Alkaline Bakır Kuat) ve MCQ (Mikronize Bakır Kuat) odun koruma kimyasalları ile poliüretan esaslı ve UV absorbe edici içeren akrilik reçine esaslı üst yüzey işlem maddeleri kullanılmıştır. Değişik kombinasyonlar halinde hazırlanan söz konusu kimyasalların, farklı türlerdeki odun örnekleri üzerine muamelesinden sonra örnekler, QUV kabininde 18 dakika sprey ve 2 saat ultraviyole (UV) döngüsünde, 500 saat süreyle hızlandırılmış açık hava koşulları testine maruz bırakılmıştır. Çalışmada, odun koruma maddeleri ile muamele edildikten sonra üst yüzey maddesi uygulanan odun örneklerinin renk değişim ve yüzey pürüzlülük parametreleri karşılaştırılmıştır. En düşük renk değişim değeri (ΔE*), MCQ ile emprenye edildikten sonra UV absorbe edici içeren akrilik reçine esaslı üst yüzey maddesi uygulanan odun örneği yüzeyinde tespit edilmiştir. Odun örneklerine üst yüzey işlemi uygulamasının, açık hava koşulları karşı yüzey kalitesini ve pürüzlülük değerini önemli ölçüde korurken en iyi kalitede korumanın poliüretan esaslı üst yüzey maddesi uygulanan örneklerde olduğu gözlenmiştir.

Anahtar Kelimeler

• Hızlandırılmış dış ortam testi
• renk değişimi
• yüzey pürüzlülüğü
• üst yüzey
• odun koruma

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