Yazar "Durmaz, Sefa" için listeleme
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Accelerated weathering performance of wood-plastic composites reinforced with carbon and glass fibre-woven fabrics
Durmaz, Sefa; Erdil, Yusuf Ziya; Özgenç, Özlem (Blackwell Publishing Ltd, 2021)Wood-plastic composites (WPCs) are new generation materials widely used in outdoor conditions; however, the appearance and mechanical properties of WPCs change with exposure to weather. In this study, high-density ... -
ATR-FTIR SPECTROSCOPIC ANALYSIS OF THERMALLY MODIFIED WOOD DEGRADED BY ROT FUNGI
Özgenç, Özlem; Durmaz, Sefa; Boyacı, İsmail Hakkı; Eksi-Koçak, Haslet (Inst Technol Drewna, 2018)The resistance of thermally modified oriental spruce, Scots pine, and oriental beech wood samples against fungi is investigated under different temperatures. Thermally modified wood samples are subjected to brown-rot fungi ... -
THE CHANGES IN THE SURFACE OF FLAT PRESSED WOOD-PLASTIC COMPOSITES EXPOSED TO ARTIFICIAL WEATHERING
Durmaz, Sefa; Özgenç, Özlem (SLOVAK FOREST PRODUCTS RESEARCH INST, 2022)In this study, the wood flour content's effect on the weathering performance of flat pressed WPC was investigated. The high density polyethylene was reinforced with four different wood flour content (10%, 30%, 50%, 70%). ... -
Characterization of fossil Sequoioxylon wood using analytical instrumental techniques
Özgenç, Özlem; Durmaz, Sefa; Serdar, Bedri; Boyacı, İsmail H.; Eksi-Kocak, Haslet; Öztürk, Murat (Elsevier Science Bv, 2018)In this study, fossil (Sequoioxylon) wood from the Oligocene-Miocene transition in istanbul, Turkey was examined using non-destructive test methods to evaluate changes in anatomical and chemical structure. Molecular changes ... -
Chemical Analysis of Tree Barks using ATR-FTIR Spectroscopy and Conventional Techniques
Özgenc, Özlem; Durmaz, Sefa; Kuştaş Süleyman (North Carolina State Univ Dept Wood & Paper Sci, 2017)ATR-FTIR spectroscopy and conventional analysis techniques were performed to characterize the chemical structure of different coniferous (cedar, fir, Calabrian pine, and spruce) and deciduous (chestnut, oak, alder, and ... -
A comparison between some wood bark extracts: Antifungal activity
Özgenç, Özlem; Durmaz, Sefa; Yıldız, Ümit Cafer; Erişir, Emir (Kastamonu Univ, Orman Fak, 2017)Aim of study: The need for eco-friendly and bio-soluble wood preservatives has increased recently. In this study, antifungal effects of tree barks were researched. Area of study: The maritime (Pinus pinaster L.), iron ... -
Comparison of Some Physical and Mechanical Properties of Waterborne Acrylic Coating Systems Containing Commercial UV Absorbers and Tree Bark Extracts
Ozgenc, Ozlem; Kustas, Suleyman; Durmaz, Sefa (Kastamonu Univ, 2019)Aim of study: The aim of this study was to compare solid content, dry film thickness, and adhesion strength of different tree bark extract based and a commercial UV absorber. Materials and methods: Waterborne acrylic-based ... -
DURABILITY IN OUTDOOR CONDITIONS OF COATING SYSTEMS BASED ON WATERBORNE ACRYLIC RESIN WITH COMMERCIAL UV ABSORBER AND TREE BARK EXTRACT
Özgenç, Özlem; Durmaz, Sefa; Kuştaş, Süleyman; Bılıcı, Ebru (INST TECHNOL DREWNA, 2021)Environmentally friendly new wood preservative surface materials were developed to protect the wood surface against outdoor conditions. The durability performance of different types of waterborne acrylic resin with bark ... -
Effect of Short Glass Fiber Reinforcement on Physical, Mechanical Properties and Fire Performance of Wood Plastic Composites
Durmaz, Sefa,; Aras, Uğur (KASTAMONU UNIV, 2023)Aim of study: This study aimed to improve some physical, mechanical properties, and fire resistance of wood-plastic composites (WPCs) with short glass fiber reinforcement (SGFR). Materials and Methods: The WPCs were ... -
EFFECT OF WOOD FLOUR CONTENT ON THE PROPERTIES OF FLAT PRESSED WOOD PLASTIC COMPOSITES
Durmaz, Sefa (Pulp and Paper Research Institute, 2022)This study focused on the effect of wood flour content on some mechanical and physical properties of flat pressed wood plastic composites (WPC). The results revealed changes in the wood flour content affected the density ... -
The effect of zinc oxide nanoparticles on the weathering performance of wood-plastic composites
Durmaz, Sefa; Keleş, Özlem Özgenç; Aras, Uğur; Erdil, Yusuf Ziya; Mengeloğlu, Fatih (John Wiley and Sons Inc, 2022)In recent years, wood-plastic composites (WPCs) have become among the most popular engineering materials. Most of their usage areas are outdoors, where they encounter various damaging factors. The weathering conditions ... -
Enhancing weathering durability of pre-protected and unprotected wood by using bark extracts as natural UV absorbers in waterborne acrylic coating
Özgenç, Özlem; Bilici, Ebru; Durmaz, Sefa; Söğütlü, Cevdet; Emik, Serkan (Springer, 2021)One of the crucial problems for wooden garden furniture is fading with the effect of UV rays. The color changes as a result of weathering have affected the usage of furniture. In this study, waterborne acrylic coatings ... -
Evaluation of the weathering resistance of waterborne acrylic- and alkyd-based coatings containing HALS, UV absorber, and bark extracts on wood surfaces
Ozgenc, Ozlem; Durmaz, Sefa; Sahin, Selin; Boyaci, Ismail H. (Springer, 2020)In this study, tree bark extracts were assessed as functional additives to provide protection in waterborne acrylic- and alkyd-based coatings. Tree bark extracts acted as natural photostabilizers and inhibited UV degradation ... -
Improvement of technological properties of wood plastic composites reinforced with glass and carbon fibre fabric
Durmaz, Sefa; Erdil, Yusuf Ziya; Avcı, Erkan (SAGE Publications Ltd, 2021)In this study, HDPE-based flat-pressed WPCs were reinforced with glass fibre and carbon fibre woven fabrics, which could be used where high strength and stiffness are required. The effect of reinforcement on some physical, ... -
Improvement of weavdthering and thermal resistance of wood-plastic composites with iron oxide nanoparticles
Durmaz, Sefa; Özgenç Keleş, Özlem; Aras, Uğur; Avci, Erkan; Atar, Ilkay (SAGE Publications Ltd, 2023)This study comprehensively investigated the effect of iron-oxide nanoparticles (NPs) on weathering durability and thermal resistance of wood-plastic composites (WPCs). The hydrophobic nature of NPs improved the dimensional ... -
Influence of pumice powder on some properties of phenol-formaldehyde bonded particleboards
Aras, Uğur; Durmaz, Sefa; Kuştaş, Süleyman; Kalaycıoğlu, Hülya (Pulp and Paper Research Institute, 2023)In this study, pumice powder as a volcanic aggregate was added in the particleboards' production. The effect of various ratios of pumice powder (10%, 20%, 30%, and 40%) on physical, mechanical, thermal and fire resistance ... -
Screw Withdrawal Resistance and Surface Roughness of Woven Carbon and Glass Fiber-reinforced Wood-plastic Composites
Durmaz, Sefa; Erdil, Yusuf Ziya; Avci, Erkan (North Carolina State Univ Dept Wood & Paper Sci, 2020)Wood-plastic composites (WPCs) have become one of the most remarkable materials for construction in recent years. Along with high resistance against biological threats, the high mechanical properties are also desired from ... -
A Synergic Effect of Water-Based Acrylic Resin with Boric Acid on Leachability
Keleş, Özlem Özgenç; Durmaz, Sefa (Pulp and Paper Research Institute, 2023)In this study, the Scots pine wood samples were impregnated (single treatment) with boric acid combined with two types of water-based acrylic resin (pure acrylic and semi-translucent acrylic emulsion) to limit the boron ... -
Weathering performance of waterborne acrylic coating systems on flat-pressed wood-plastic composites
Durmaz, Sefa; Özgenç, Özlem; Avcı, Erkan; Boyacı, İsmail Hakkı (Wiley, 2020)This study applied coating systems containing two different waterborne acrylic resins with an ultraviolet (UV) absorber on the surfaces of polyvinyl chloride-based flat-pressed wood-plastic composites (WPCs) evaluated and ...
