EMPRENYE VE ISIL İŞLEMİN KAYIN AĞACININ BAZI MEKANİK ÖZELLİKLERİNE ETKİSİ

Bu çalışmanın amacı doğal emprenye maddesi ile emrenye edilmiş ve ısıl işlem uygulanmış Doğu kayını (Fagus orientalis L.) ağacının hava kurusu yoğunluk değeri, eğilme direnci ve liflere paralel basınç direncinin belirlenmesidir. Emprenye maddesi olarak meşe palamudu taneni tercih edilmiştir. Deney örnekleri ASTM D1413-76 standardına göre %3, %5 ve %7 emprenye çözeltisinde emprenye edilmiştir. Emprenye işleminden sonra deney örneklerine 150, 170, 190 ve 210°C’de 2 saat ısıl işlem uygulanmıştır. Deney sonuçlarına göre,  emprenye ve ısıl işlem genellikle Doğu kayını ağacının yoğunluk değerleri ile eğilme ve liflere paralel basınç direncini düşürdüğü belirlenmiştir. Eğilme ve liflere paralel basınç dirençleri için en yüksek direnç kaybı %7 emprenyeli ve 210°C’de ısıl işlem uygulanmış örneklerde tespit edilmiştir.  Ayrıca eğilme ve liflere paralel basınç direnci düşük sıcaklıklarda bir miktar artarken, daha yüksek sıcaklıklarda bu dirençler azalmıştır.

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İleri Teknoloji Bilimleri Dergisi-Cover
  • ISSN: 2147-3455
  • Başlangıç: 2015
  • Yayıncı: Düzce Üniversitesi