Bardak, SelahattinNemli, GökayBardak, TimuçinPeker, HüseyinÖzcan, Mehmet2025-03-232025-03-2320201302-09431308-5875https://hdl.handle.net/11486/25172016.F11.02.05Bu çalismada, ayçiçek üretimi sonrasi tarlada atik kalan ayçiçek tablasinin hammadde olarak yonga levha üretimine uygunlugu arastirilmistir. Çalismada belirli oranlarda kokar agaç (Ailanthus altissima (Mill.) Swingle) odunu ve ayçiçek tablasi içeren 5 farkli levha üretilmistir. Ayni zamanda kullanilan hammaddelerin kimyasal özellikleri ve yonga levhalarin çesitli kalite özelliklerine de (fiziksel, mekanik, yüzey özellikleri ve formaldehit emisyonu) bakilmistir. Son olarak da elde edilen veriler degerlendirilerek yonga levhalarin çesitli kullanim yerlerinde özellikle de mobilya ve genel kullanim için uygunlugu ilgili standartlara bakilarak degerlendirilmistir. Kimyasal analizlerden elde edilen verilen verilerin degerlendirilmesi sonucunda tüm çözünürlük degerleri, pH ve kül degerlerinin ayçiçek tablasinda kokar agaca odununa göre daha yüksek oldugu belirlenmistir. Fakat holoselüloz, selüloz, hemizelüloz ve lignin miktarlarinin ise kokar agaç odununda ayçiçek tablasina göre daha yüksek oldugu tespit edilmistir. Yapilan çalismalardan elde edilen verilerin istatistiksel olarak degerlendirilmesi sonucu yonga levhalarin üretiminde % 10 ayçiçek kafasi kullanilmasi yonga levhalarin teknolojik özelliklerini etkilememistir. % 20, % 30 ve % 100 ayçiçek tablasi kullanimi egilme direnci, elastikiyet modülü ve yüzeye dik çekme direncini olumsuz yönde etkilemistir. Buna ragmen 2 ve 24 saatlik kalinligina sisme degerleri ve formaldehit emisyonunu ise olumlu yönde etkilemistir. Son olarak ise levhalarin yüzey özelliklerine (ortalama pürüzlülük, en büyük pürüzlülük ve on nokta pürüzlülügü) bakildiginda ayçiçek tablasi kullanim oranin artmasina paralel olarak pürüzlülük degerlerinin arttigi tespit edilmistir.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.trinfo:eu-repo/semantics/openAccessYongalevhaAyçiçek TablasiTeknolojik ÖzelliklerArticle222485499