Cabreúva-vermelha (Myroxylon peruiferum L.f.) Ahşabında Ağartma Uygulaması
Küçük Resim Yok
Tarih
2025
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Artvin Çoruh Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalışmada, cabreúva-vermelha (Myroxylon peruiferum L.f.) ahşabında ağartma uygulaması yapılması sonrasında meydana gelen bazı yüzey özelliklerindeki (beyazlık indeksi: WI*, parlaklık ve renk parametreleri) değişimleri incelenmiştir. Ağartma uygulamasında 2 farklı kimyasallar kullanılmıştır (C2H2O4 ve H2O2 + NaOH). Ağartılmış ahşap yüzeyler ile ağartılmamış yüzeyler birbirleri ile kıyaslanmıştır. Bütün testler üzerinde varyans analizleri anlamlı olarak bulunmuştur. Her iki ağartma kimyasalı ile L*, b* ve ho değerlerinde artışlar görülmüştür. C* ve a* değerlerinde ise C2H2O4 ile artış ve H2O2 + NaOH ile azalış elde edilmiştir. Ağartma uygulamaları ile 60 ve 85 derecelerde her iki yönde yapılan parlaklık değerlerinde azalışlar bulunmuştur. ?E* değerleri en yüksek H2O2 + NaOH kimyasalı ile 10.00 olarak elde edilirken, C2H2O4 kimyasalı ile 5.43 bulunmuştur. H2O2 + NaOH kimyasalı, C2H2O4 kimyasalından yüksek ?E* değeri vermiştir. ?L*, ?a*, ?b* ve ?C* değerleri C2H2O4 kimyasalı ile pozitif olarak elde edilmiştir. H2O2 + NaOH ile ?L* ve ?b* değerleri pozitif bulunurken, ?a* ve ?C* değerleri ise negatif olarak hesaplanmıştır. H2O2 + NaOH ile WI* değerleri her iki yöndeki ölçümlerde artış durumu sergilemiştir.
In this study, changes in some surface properties (whiteness index: WI*, glossiness, and color parameters) of cabreúva-vermelha (Myroxylon peruiferum L.f.) wood after bleaching treatment have been investigated. Two different chemicals were used in the bleaching treatment (C2H2O4 and H2O2 + NaOH). Significant differences were detected in all variance analyses conducted across the entire range of tests. Increases in L*, b*, and ho values were observed with both bleaching chemicals. For C* and a* values, an increase was achieved with C2H2O4 while a decrease was obtained with H2O2 + NaOH. Decreases in glossiness evaluations conducted in both directions at 60 and 85 degrees were found with bleaching treatments. The ?E* values were found to be 10.00 in the samples exposed to the H2O2 +NaOH chemical, while they were determined to be 5.43 in the C2H2O4 chemical. The H2O2 + NaOH chemical yielded a higher ?E* value compared to the C2H2O4 chemical. The ?L*, ?a*, ?b*, and ?C* values were obtained positively with C2H2O4. With H2O2 + NaOH, ?L* and ?b* values were found to be positive, while ?a* and ?C* values were calculated to be negative. With H2O2 + NaOH, WI* values exhibited an increase in measurements conducted in both directions.
In this study, changes in some surface properties (whiteness index: WI*, glossiness, and color parameters) of cabreúva-vermelha (Myroxylon peruiferum L.f.) wood after bleaching treatment have been investigated. Two different chemicals were used in the bleaching treatment (C2H2O4 and H2O2 + NaOH). Significant differences were detected in all variance analyses conducted across the entire range of tests. Increases in L*, b*, and ho values were observed with both bleaching chemicals. For C* and a* values, an increase was achieved with C2H2O4 while a decrease was obtained with H2O2 + NaOH. Decreases in glossiness evaluations conducted in both directions at 60 and 85 degrees were found with bleaching treatments. The ?E* values were found to be 10.00 in the samples exposed to the H2O2 +NaOH chemical, while they were determined to be 5.43 in the C2H2O4 chemical. The H2O2 + NaOH chemical yielded a higher ?E* value compared to the C2H2O4 chemical. The ?L*, ?a*, ?b*, and ?C* values were obtained positively with C2H2O4. With H2O2 + NaOH, ?L* and ?b* values were found to be positive, while ?a* and ?C* values were calculated to be negative. With H2O2 + NaOH, WI* values exhibited an increase in measurements conducted in both directions.
Açıklama
Anahtar Kelimeler
Architectural Engineering, Mimari Mühendislik
Kaynak
Artvin Çoruh Üniversitesi Mühendislik ve Fen Bilimleri Dergisi
Artvin Coruh University Journal of Engineering and Sciences
Artvin Coruh University Journal of Engineering and Sciences
WoS Q Değeri
Scopus Q Değeri
Cilt
3
Sayı
1
