Browsing by Author "Gündüz, Gökhan"
Now showing items 21-38 of 38
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Hardness and brightness durability properties of opaque paints used in furniture industry
Aytekin, Alper; Kaygın, Bülent; Gündüz, Gökhan; Özen, Ramazan (1999)In furniture industry resistance of wooden surfaces against external effects depends on the strength of paint and varnish layers towards possible impacts. In this study cellulosic, synthetic ... -
Heat treated wood–nylon 6 composites
Gardner, Douglas J.; Aydemir, Deniz; Kızıltaş, Alper; Erbaş Kızıltaş, Esra; Gündüz, Gökhan (Elsevier, 2014-09-03)Heat treatment is a relatively benign modification method that is growing as an industrial process to improve hygroscopicity, dimensional stability and biological resistance of lignocellulosic fillers. There also has ... -
The impacts of heat treatment on lap joint shear strength of black pine wood
Aydemir, Deniz; Gündüz, Gökhan; Onat, S. Murat (Taylor & Francis, 2010-09-02)This study was conducted to determine the impacts of heat treatment on lap shear strength, density, and mass loss of black pine wood. In the study, black pine wood boards bonded with polyurethane were subjected to ... -
The influence of mass loss on the mechanical properties of heat-treated black pine wood
Gündüz, Gökhan; Aydemir, Deniz (Wood Research, 2009)Heat has been a method used to dry and modify the properties of wood since ancient times. Nowadays, heat is used as industrial processes for the same reason. Treatment at temperatures above 150°C can change the color of ... -
Influence of micro- and nanonatural fillers on mechanical and physical properties of foamed sma composites
Han, Yousoo; Gardner, Douglas J.; Aydemir, Deniz; Kızıltaş, Alper; Gündüz, Gökhan (Taylor & Francis, 2015-03-25)This study is to investigate the reinforcing effects of fillers on mechanical and physical properties of foamed styrene-maleic anhydride (SMA) composites. According to the results, the best foaming was determined for ... -
The influence of thermal treatment on color response of wood materials
Aydemir, Deniz; Gündüz, Gökhan; Özden, Seray (Wiley Periodicals, 2010-08-11)In this study, the influence of thermal treatment on color changes of six different wood materials was investigated. Test specimens were subjected to three different temperatures (160, 180, and 200°C) and durations (3, 5, ... -
Investigating changes in the chemical constituents and dimensional stability of heat-treated hornbeam and Uludag fir wood
Aydemir, Deniz; Gündüz, Gökhan; Altuntaş, Ertuğrul; Ertaş, Murat; Şahin, Halil Turgut; Alma, M. Hakkı (Bioresources, 2011)Changes in chemical constituents and some physical properties such as swelling and water absorption of hornbeam (Carpinus betulus L) and uludag fir (Abies bornmulleriana Mattf.) wood were investigated after heat treatment ... -
Mechanical, morphological and thermal properties of nano-boron nitride treated wood materials
Aydemir, Deniz; Çivi, Büşra; Alsan, Mizgin; Can, Ahmet; Sivrikaya, Hüseyin; Gündüz, Gökhan; Wang, Alice (Maderas. Ciencia y Tecnología, 2016)Thermal instability is the one of the most important disadvantages of wood since it begins to decompose at a low temperature (˃110 °C). Many scientists, past and present, have conducted studies aimed at improving the ... -
Morphological characterization of foamed natural filler-reinforced styrene maleic anhydride (SMA) composites
Gardner, Douglas J.; Aydemir, Deniz; Kızıltaş, Alper; Han, Yousoo; Gündüz, Gökhan (Springer, 2014-10-04)The aim of this study is to investigate the foaming of styrene maleic anhydride (SMA) matrix composites with a physical foaming agent, created during the reactive extrusion of natural fillers and SMA. The effect ... -
Nanocomposites of polypropylene/nano titanium dioxide: effect of loading rates of nano titanium dioxide
Gümüş, Sultan; Aydemir, Deniz; Uzun, Gülşen; Gümüş, Havva; Yıldız, Sonnur; Bardak, Timuçin; Gündüz, Gökhan (Materials Science, 2016-09-01)TiO2 filled Polypropylene (PP) nanocomposites were prepared with a single screw extruder and then by injection molding of the blends. Water absorption, density, mechanical properties, morphological characterization, FTIR ... -
Natural fillers-filled styrene maleic anhydride copolymer composites
Gardner, Douglas J.; Aydemir, Deniz; Kızıltaş, Alper; Han, Yousoo; Gündüz, Gökhan (Wood Research, 2015)The aim of this study was to determine morphological characterization, mechanical properties and thermal stability of natural fillers-filled styrene maleic anhydride (SMA) copolymer composites. SMA and natural fillers ... -
Optimization of the conditions required for chemical and biological modification of the yeast waste from beer manufacturing to produce adhesive compositions
Telyatnik, Vladimir; Revin, Victor; Parshin, Alexander; Kezina, Elena; Kadimaliev, Davut; Allahverdi, Surhay; Aşık, Nejla; Gündüz, Gökhan (Bioresources, 2012)During the production of beer large amounts of yeast waste are generated. This paper considers the possible making of environmentally friendly adhesive compositions from such wastes. Chemical treatment of yeast wastes ... -
Physical, morphological properties and raman spectroscopy of chestnut blight diseased castanea sativa mill. wood
Gündüz, Gökhan; Oral, Mehmet Ali; Akyüz, Mehmet; Aydemir, Deniz; Yaman, Barbaros; Aşık, Nejla; Bülbül, Ali Savaş; Allahverdi, Surhay (SCIELO, 2016)In this study, some of the physical and anatomical properties of Chestnut Blight Diseased (CBD) wood were investigated, and the study also included observations using Raman spectroscopy. The objective of these investigations ... -
Preparing drying schedules of fraxinus excelsior l. by computer program
Aytekin, Alper; Kaygın, Bülent; Gündüz, Gökhan; Karayılmazlar, Selman; Özşahin, Şükrü (New and Nontraditional Plants and Prospects of Their Utilization, 1999)Despite the competitions of many new material and innovations of technologic period, nowadays wood material have an important place at many usage area as raw material because of their ... -
Some chemical properties of camiyani black pine
Aytekin, Alper; Gündüz, Gökhan; Vurdu, Hasan (International Conference on Ecology and Security of Life Activity, 2003)The aim of this study was to assess some chemical properties of Pinus nigra Arn. var. pallasiana subsp. pallasiana. This, is one of the most valued tree species used in furniture industry in Turkey. The ... -
Some physical properties of heat-treated hornbeam (carpinus betulus l.) wood
Gündüz, Gökhan; Aydemir, Deniz (Taylor & Francis, 2009-05-01)Thermal treatment of wood alters its structure due to degradation of wood polymers (cellulose, hemicellulose, and lignin), so the physical properties of wood are either improved or worsen. In this study, the effect of ... -
Some physical properties of heat-treated paulownia (paulownia elongata) wood
Kaygın, Bülent; Gündüz, Gökhan; Aydemir, Deniz (Taylor & Francis, 2009-01-01)The aim of this study was to determine the changes in physical properties of Paulownia (Paulownia elongata) wood, a fast-growing species, during heat treatment at three different temperatures (160, 180, and 200 C) and ... -
Thermal analysis of micro- and nano- lignocellulosic reinforced styrene maleic anhydride composite foams
Gardner, Douglas J.; Aydemir, Deniz; Kızıltaş, Alper; Han, Yousoo; Gündüz, Gökhan (Taylor & Francis, 2015-03-06)The aim of this study was to measure the thermal properties of foamed nano/macro filler–reinforced styrene maleic anhydride (SMA) composites. SMA (66%) as a polymer matrix (10% maleic anhydride content) and various fillers ...