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Bu çalışmada, ayçiçek üretimi sonrası tarlada atık kalan ayçiçek tablasının hammadde olarak yonga levha üretimine uygunluğu araştırılmıştır. Çalışmada belirli oranlarda kokar ağaç (Ailanthus altissima (Mill.) Swingle) odunu ve ayçiçek tablası içeren 5 farklı levha üretilmiştir. Aynı zamanda kullanılan hammaddelerin kimyasal özellikleri ve yonga levhaların çeşitli kalite özelliklerine de (fiziksel, mekanik, yüzey özellikleri ve formaldehit emisyonu) bakılmıştır. Son olarak da elde edilen veriler değerlendirilerek yonga levhaların çeşitli kullanım yerlerinde özellikle de mobilya ve genel kullanım için uygunluğu ilgili standartlara bakılarak değerlendirilmiştir. Kimyasal analizlerden elde edilen verilen verilerin değerlendirilmesi sonucunda tüm çözünürlük değerleri, pH ve kül değerlerinin ayçiçek tablasında kokar ağaca odununa göre daha yüksek olduğu belirlenmiştir. Fakat holoselüloz, selüloz, hemizelüloz ve lignin miktarlarının ise kokar ağaç odununda ayçiçek tablasına göre daha yüksek olduğu tespit edilmiştir. Yapılan çalışmalardan elde edilen verilerin istatistiksel olarak değerlendirilmesi sonucu yonga levhaların üretiminde % 10 ayçiçek kafası kullanılması yonga levhaların teknolojik özelliklerini etkilememiştir. % 20, % 30 ve % 100 ayçiçek tablası kullanımı eğilme direnci, elastikiyet modülü ve yüzeye dik çekme direncini olumsuz yönde etkilemiştir. Buna rağmen 2 ve 24 saatlik kalınlığına şişme değerleri ve formaldehit emisyonunu ise olumlu yönde etkilemiştir. Son olarak ise levhaların yüzey özelliklerine (ortalama pürüzlülük, en büyük pürüzlülük ve on nokta pürüzlülüğü) bakıldığında ayçiçek tablası kullanım oranın artmasına paralel olarak pürüzlülük değerlerinin arttığı tespit edilmiştir.
In this study, the suitability of the flour sheet left in the field after flour production as a raw material was studied. Ailanthus altissima (Ailanthus altissima) It is produced 5 different sheets containing wood and flower plate. The chemical characteristics of the raw materials used and the various quality characteristics of the joint leaves (physical, mechanical, surface characteristics and formaldehyde emissions) are also considered. Finally, the data obtained was assessed by considering the relevant standards of suitability for furniture and general use in various places of use. The assessment of the data obtained from chemical analyses found that all resolution values, pH and ashes values were higher in the flower table compared to the wood in the flower tree. But the amounts of holosellulose, cellulose, hemisellulose, and lignine have been found to be higher than the flower table in the wooden trees. As a result of the statistical assessment of the data obtained from the studies carried out, the use of 10% of the moonhead in the production of moon sheets has not affected the technological characteristics of the moon sheets. The use of 20%, 30 and 100 percent flower plate has negatively affected the inclination resistance, the elasticity module and the rectum drawing resistance to the surface. Nevertheless, the 2 and 24 hour thickness had a positive impact on the swelling values and formaldehyde emissions. Finally, considering the surface characteristics of the sheets (mediate smoothness, greatest smoothness and ten-point smoothness), it is found that the smoothness values are increased parallel to the increase in the use rate of the sheet.
In this study, the appropriateness of the remaining sunflower tray in the field after the sunflower production as raw material to the particleboard production was investigated. In the study, 5 different particleboards were produced, which included certain amounts of wood of tree of heaven (Ailanthus altissima (Mill.) Swingle) and sunflower table. At the same time, the chemical properties of the raw materials used and the various quality characteristics of the chips (physical, mechanical, surface properties and formaldehyde emission) were examined. Finally, the obtained data were evaluated and evaluated for the suitability of the chipboards in various places of use, in particular for furniture and general use, according to relevant standards. As a result of the evaluation of the data obtained from chemical analysis, it has been determined that all the solubility values, pH and ash values are higher in the sunflower tray than the wood of tree of heaven. However, the amount of holocellulose, cellulose, hemisellulose and lignin were found to be higher in the wood of tree heaven compared to the sunflower tray. The statistical evaluation of the data obtained as a result of the studies done does not affect the technological characteristics of the chips by using 10% sunflower head in the production of the particleboards. Using 20%, 30% and 100% sunflower tray affected the bending strength, modulus of elasticity, and internal bond strenght to the surface in the negative direction. Despite this, it affected positively the thickness swelling values for 2 and 24 hour immersion and formaldehyde emission..Finally, when looking at the surface properties of the boards (average roughness, maximum roughness and ten point roughness), it was determined that the roughness values increased in parallel with the increase of sunflower tray utilization rate.
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