EFFECT OF HEAT TREATMENT ON THE SURFACE OF SELECTED EXOTIC WOOD SPECIES

AYATA Ü., Gurleyen L., Esteves B.

DREWNO, cilt.60, sa.199, ss.105-116, 2017 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 60 Sayı: 199
  • Basım Tarihi: 2017
  • Doi Numarası: 10.12841/wood.1644-3985.198.08
  • Dergi Adı: DREWNO
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.105-116
  • Atatürk Üniversitesi Adresli: Evet

Özet

This study measured the effect of heat treatment according to the ThermoWood method on the colour and glossiness properties of selected exotic wood species. For this purpose, Afrormosia (Pericopsis data), Doussie (Afzelia bipindensis), Frake (Terminalia superba) and Iroko (Chlorophora excelsa) were heat treated at 212 degrees C for 1 hour and 2 hours using the ThermoWood method in Novawood Factory, Gerede, in Bolu, Turkey. After this process, the glossiness and colour of the untreated wood were tested in comparison with the heat-treated samples. The results show that the colour (L*, a* and b*) and glossiness (parallel and perpendicular to the grain at 20 degrees, 60 degrees and 85 degrees angles) were changed by the treatment. Generally the L* and glossiness of the surface decreased and the Delta E* and a* increased with the intensity of the treatment.