BIOLOGICAL RESISTANCE OF ACETYLATED SPRUCE PARTICLEBOARDS AGAINST TO BROWN ROT FUNGI (Coniophora puteana)

Öz

In this study, it was aimed to see the superior properties of acetylation technology which protects the wood against to wood destroying organisms perfectly, on particleboards. Therefore,  particleboards made from 1 and 3 hour acetylated particles and gave approximately 15% and 20% weight percent gain, exposed to brown rot fungi  Coniophora puteana according to procedures defined in EN 113 standard.  Biological resistance of acetylated and untreated (control) boards were compared. The acetylated boards demonstrated increased durability against brown rot fungi.  specially 3 hour acetic anhydride treatment reduced the weight losses more significantly than others and showed greater biological resistance.

Anahtar Kelimeler

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ASETİLLENDİRİLMİŞ LADİN YONGALEVHALARININ ESMER ÇÜRÜKLÜK MANTARINA (Coniophora puteana) KARŞI DAYANIKLILIĞI

Öz

Çürütücü mantarlara karşı oduna oldukça iyi koruma ve biyolojik dayanım sağlayan asetillendirme teknolojisinin etkinliğini yongalevhada gözlemleyebilmek amacıyla yürütülen çalışmada,  yaklaşık %15 ve %20 ağırlık kazanç değerleri verecek  şekilde 1 ve 3 saat boyunca asetillendirilen ladin yongalevhaları EN 113 standardına uygun olarak esmer çürüklük mantarının saldırısına (Coniophora puteana) maruz bırakılmıştır.  Çalışmada, asetillendirilmiş levhalar ile asetillendirilmemiş kontrol levhalarının biyolojik dayanım performansları karşılaştırılmıştır. Asetillendirme işleminin yongalevhaları esmer çürüklük mantarlarına  karşı büyük ölçüde koruduğu gözlenmiştir. Özellikle 3 saat uygulanan asetillendirme işlemi yoğun mantar tahribatına karşı oldukça düşük ağırlık kaybı değerleri vererek iyi bir performans sergilemiştir.

Anahtar Kelimeler

• Asetillendirme, C. puteana, biyolojik dayanım, esmer çürüklük

Kaynakça

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