Yongalevha Üretimi İçin Elek Makinesi Atıklarının Kullanımı

Yıl 2018, Cilt: 20 Sayı: 1, 81 - 86, 16.04.2018

Selahattin Bardak Gökay Nemli

Öz

Bu çalışmada, yongalevha üretiminde hızlı büyüyen bir tür olan Ailanthus Altissima (Mill.) Swingle
odunu ve yongaların elenmesinde
oluşan atıklar kullanılmıştır kullanılmıştır. Bu çalışmanın amacı elek
makinası atıklarının kullanımının (toz ve kaba yonga) yongalevhanın mekanik
(eğilme direnci, elastikiyet modülü ve çekme direnci), fiziksel (kalınlığına
şişme) ve yüzey kalitesi (pürüzlülük) ve formaldehit emisyonu üzerine
etkilerini belirlemektir. % 10 toz kullanımı yüzey pürüzlülüğü, kalınlığına
şişme ve mekanik özellikleri pozitif yönde etkilemiştir. % 20 toz kullanımı
mekanik direnç özellikleri, yüzey pürüzlülüğü ve formaldehit emisyonunu istatistiksel
olarak etkilememiştir. Panellerin kalınlığına şişme değerleri % 20 toz
kullanımı ile iyileşmiştir.  Toz
kullanımının % 30’a çıkması ile mekanik direnç özellikleri ve yüzey düzgünlüğü
da zayıf olmasına neden olmuştur. % 10 kaba yonga kullanımı yongalevhanın
kalite özelliklerini istatistiksel olarak etkilememiştir. Kaba yonga
kullanımının % 10’dan % 20 ve % 30’a çıkarılması yongalevhaların mekanik direnç
özellikleri ve kalınlığına şişme değerlerini negatif yönde etkilemiştir.
Sonuçlar hızlı büyüyen bir tür olan Ailanthus
Altissima (Mill.) Swingle odununun yongalevha üretiminde
kullanılabileceğini göstermiştir. Toz (dış ve orta tabaka) ve kaba yonga
kullanımı (orta tabaka) sırasıyla % 20 ve % 10’u aşmamalıdır.

Anahtar Kelimeler

Ailanthus Altissima (Mill.) Swingle, toz, yongalevha, kalite özellikleri, kaba yongalar, elek makinesi atıkları

Use of Screening Machine Wastes for Manufacturing of Particleboard Composite

Öz

In this study, fast grown Ailanthus
Altissima (Mill.) Swingle wood and screening machine wastes occurred during
the particleboard manufacturing were used for particleboard manufacturing. The
purpose of this study is to determine the effects of screening machine wastes
(dust and rude particles) usage on the mechanical (modulus of rupture, modulus
of elasticity and internal bond strength), physical (thickness swelling) and
surface quality (roughness), and formaldehyde emission of particleboard. 10%
dust usage positively affected the surface roughness, thickness swelling, and
mechanical properties of particleboard panels. 20 % dust usage did not
statistically affect the mechanical strength properties, surface roughness, and
formaldehyde emission. Thickness swelling of the panels was improved by using
20% dust. Increasing dust usage to 30% caused poorer the mechanical strength
properties and surface smoothness. 10% rude particle usage did not
statistically influence the quality properties of particleboard. Increasing
rude particle usage from 10% to 20 % and 30% negatively influenced the
mechanical resistance properties and thickness swelling of the particleboards.
The results showed that fast grown Ailanthus
Altissima (Mill.) Swingle wood can be used particleboard manufacturing.
Dust (in surface and core layers) and rude particles (in core layer) usage
should not exceed 20% and 10 %, respectively.

Anahtar Kelimeler

Ailanthus Altissima (Mill.) Swingle, dust, particleboard, quality properties, rude particles, screening machine wastes

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