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Öğe The effects of protective dye layer applied on varnish layer hardness, scratch resistance and glossiness of various blockboard types(Academic Journals, 2011) Çakıcıer, Nevzat; Korkut, Süleyman; Korkut, Derya Sevim; Kurtoğlu, Ahmet; Erdinler, E. Seda; Ulay, GökselThis study is carried out for determining the changes occurring on the amount of the material used on the protective layer when polyurethane and acrylic (lacquered) dye is applied on the test samples prepared from sandwich type composite (blockboard) boards with their surface coated or uncoated with paper, which are used for the yacht furniture and interior decoration. After applying polyurethane and acrylic dye on the 30 test samples prepared as coated or uncoated with paper with 10 x 10 x 1.6 cm sizes from blockboard, the surface hardness values of the protective layer as applied in ASTM D 436695 (1984) were determined, the scratch resistance were determined according to the essentials specified in TS 4757 (1986), and the glossiness were also determined according to the essentials specified in TS 4318 EN ISO 2813 (2002). According to the result of the study, concealing dyeing is obtained with much surface hardness, scratch resistance and glossiness by using less lacquer dye on the boards coated with paper. With this study, it is possible to suggest that coating with paper before lacquer dyeing can be a preferable application in terms of cost and time saving.Öğe Effects of QUV accelerated aging on surface hardness, surface roughness, glossiness, and color difference for some wood species(2011) Çakıcıer, Nevzat; Korkut, Süleyman; Korkut, Derya Sevim; Kurtoğlu, Ahmet; Sönmez, AbdullahThe surface hardness, surface roughness, glossiness, and color difference were determined for wooden materials produced from three commonly used species - two native of Turkey and one exotic - treated with one- and two-component water-based varnishes and exposed to different amounts of radiation to mimic accelerated aging using a QUV aging device. One- and two-component water-based varnishes were applied two-and three coats to Scoth pine (Pinus sylvestris L.), Iroko (Chlorophora excelsa), and Anatolian chestnut (Castenea sativa Mill.) woods. Then, the varnish coated materials were exposed to QUV aging devices for 216 and 432 h. Results indicated that the surface hardness and glossiness were decreased for all the three wood species across all the treat ment combinations. However, values of surface roughness and color difference were increased for all the threewood species across all the treatment combination. © 2011 Academic Journals.Öğe Solid wood flooring and multilayered parquet industries in Turkey(Academic Journals, 2009) Güngör, Nur Müge; Kurtoğlu, Ahmet; Korkut, SüleymanStatus problems and solution proposals of Turkish solid wood flooring and multilayered parquet industries between 2002 - 2006 was analyzed due to necessity for investigating developments after 2002 in this study. As the result of solid wood flooring inquiry study, most frequently used native and exotic species in production were determined as oak, beech, red pine, sapele, iroko respectively. Dry kilns were designated mostly modern and automatically controlled. But steaming technology was determined to be insufficient because of incapable temperature measurement and control system. Average yield in producing flooring strips from log and in producing wood parquet from flooring strip were determined as 61.7 and 70.4% respectively. Most enterprises apply TS 73 EN 13226 (2004) in classification. As the result of multilayered parquet questionnaires, native species used in lamella (top layer) production are oak, beech, walnut, maple, cherry, ash; and exotic species are iroko, sapele, merbau, doussie, teak, wenge, bubinga. Machines producing flooring strips from logs and lamella production machines vary from mostly modern and to rarely out of date in Turkey. Thin cutting frame saws frequently used in top layer production from flooring strips have superior technology. Dry kilns are also modern. Lacquer is cured by means of UV system in ultraviolet curing tunnels. Average yield in producing flooring strips from lumber was found 60 %. Most multilayered parquet enterprises apply TS EN 13489 (2004) in classification.Öğe TÜRKİYE MUTFAK MOBİLYASI SEKTÖRÜNDE TÜKETİCİ TERCİH ÖNCELİKLERİNİN BELİRLENMESİ(Düzce Üniversitesi, 2017) Uçar, Ersin; Dilik, Tuncer; Kurtoğlu, AhmetBu bildiride, mutfak mobilyasısektöründeki üretim ve projelendirme çalişmalari üzerindeki tüketicitercihlerinin öncelikleri incelenmiştir. nbsp;Bu kapsamda, tüketicilerin mutfak mobilyasindan olan beklentileri vetercihleri Türkiye’deki mutfak mobilyasi üreticileri üzerinde yapilmiş olanaraştirma sonuçlari çerçevesinde değerlendirilmiştir. Bu amaçla, 6 kriterin(özgün tasarım, temizlenebilirlik ve hijyen, imaj, güvenlik, standartlaşma vediğer faktörler) tüketici beklenti ve tercihleri üzerindeki öncelikleribelirlenmiştir. Bu çerçevede elde edilen bulgulara göre, öncelik sırasının;özgün tasarım, temizlenebilirlik ve hijyen, imaj, güvenlik, diğer faktörler(fiyat-ekonomiklik) ve standartlaşma şeklinde olduğu belirlenmiştir. Busonuçta, sektör işletmelerinin genellikle sipariş (proje) tipi üretimleçalışmasının etkili olduğu görülmektedir. Zira, işletmeler ürettikleri herprojeyi farklı ve özgün bir tasarım olarak tanımlamaktadır. Sonuç olarak,Türkiye mutfak mobilyası sektörünün, dünya mutfak mobilyası sektörü için trendbelirleyici konumdaki Almanya ve İtalya mutfak sektörlerindeki özgün tasarım veimaj önceliklerinden kısmen de olsa etkilenmekte olduğu görülmekte olup, mutfaksektörü için belirlenen tercihlerdeki öncelik sıralaması neden-sonuç ilişkisiiçinde açıklanmaya çalışılmıştır.Öğe User preferences and problems encountered in the selection of housing windows in Turkey(Academic Journals, 2010) Korkut, Derya Sevim; Dilik, Tuncer; Erdinler, E. Seda; Koç, Hüseyin; Kurtoğlu, AhmetIn this study, the most preferred window type relating to housing in Turkey according to the quality of the material used during production, the reasons of preference, the problems encountered during the use of the preferred windows, production defects and the assessments of the users relating to windows production industry have been studied. The study is planned within the scope of Duzce city, a region with a great disaster and damage during the 1999 earthquakes in Turkey. The basic reasons for selecting the region as the study region are the socio-economical structure of the region and its position which makes it open for industrial developments, as well as displaying a faster structuring and renovation process compared to the other regions in Turkey. Direct surveys have been applied to different families living in Duzce city. As a result of the study, it has been determined that the users consider the durability of the window while selecting (71%) and this is followed by affordability (20%), availability of service facilities (7%) and other reasons (2%). Furthermore, it is also determined that the window preferences of the existing users are 54% plastic (PVC), 38% wood and 8% aluminum.
