Browsing by Author "Dizman Tomak, Eylem"
Now showing items 1-20 of 29
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Accelerated weathering resistance of high-density polyethylene composites reinforced with microcrystalline cellulose and fire retardants
Dönmez Çavdar, A.; Dizman Tomak, Eylem; Boran, Torun, S.; Arpaci, S.S. (Elsevier Ltd, 2021)In this study, high-density polyethylene (HDPE) composites reinforced with microcrystalline cellulose (MCC) and fire retardants, ammonium zeolite (AZ) and mono ammonium phosphate (MAP) were exposed to ultraviolet (UV) ... -
Ahşap malzemenin fotodegradasyona karşı dayanıklılığının tanen ve nano metal oksitler ile arttırılması
Yazıcı, Ömür Ahmet (Bursa Teknik Üniversitesi, 2019)Çalışmanın amacı, sarıçam ahşap yüzeylerinin 3 farklı konsantrasyonda valeks, mimoza ve kızılçam kabuk taneni ile nano çinko ve seryum oksit katkılı su esaslı akrilik bir üst yüzey işlem maddesi uygulaması ile UV degradasyonuna ... -
Bakır, çinko ve seryum içeren kimyasal maddeler ile odunun antifungal özelliklerinin iyileştirilmesi
Organik bir malzeme olan odun, odun tahripçisi organizmalar tarafından bozundurulmakta ve tahrip edilebilmektedir. Bu amaçla geçmişten günümüze kadar birçok emprenye maddesi geliştirilmiş ve halen de geliştirilmeye devam ... -
Biological properties of nutshell and microcrystalline cellulose (MCC) filled high density polyethylene composites
Boran, S.; Dizman Tomak, Eylem; Dönmez Çavdar, A. (International OCSCO World Press, 2016)Purpose: The composites based on natural fibre and wood can be destroyed by fungi attack, even the lignocellulosic materials were used as filler in hydrophobic thermoplastic matrix. The aim of this study was to investigate ... -
Changes in chemical composition of decayed Scots pine and beech wood
Dizman Tomak, Eylem (Walter De Gruyter Gmbh, 2014)In this study, changes in chemical composition of aged and unaged Scots pine and beech wood decayed by brown-rot fungi Coniophora puteana and Poria placenta were presented by Fourier transform infrared (FT-IR) spectra. ... -
Changes in surface and mechanical properties of heat treated wood during natural weathering
Dizman Tomak, Eylem; Ustaomer, Derya; Yildiz, Sibel; Pesman, Emrah (Elsevier Sci Ltd, 2014)In this study, it was aimed to investigate the changes in moisture content, color, surface roughness, compression strength parallel to grain, modulus of rupture and modulus of elasticity of heat treated ash, iroko, Scots ... -
Characterization of weathered MCC / nutshell reinforced composites
Boran Torun S.; Dizman Tomak, Eylem; Donmez Cavdar A.; Mengeloglu F. (Elsevier Ltd, 2021)Microcrystalline cellulose (MCC) and nutshell fiber reinforced high-density polyethylene (HDPE) composites were exposed to accelerated weathering for total of 672 h. The effects of weathering exposure on the mechanical, ... -
Çeşitli odun türlerinin dış ortam koşullarında ultraviyole ışınlarına karşı dayanımlarının belirlenmesi
Arpacı, Şebnem Sevil (Bursa Teknik Üniversitesi, 2020)Bu çalışmanın amacı, endüstriyel öneme sahip 16 farklı odun türü örneğinin dış ortamda UV ışınları başta olmak üzere bozundurucu faktörlerin etkilerine karşı doğal dayanıklılığının yapay ve gerçek alan denemeleri ile ... -
Effect of artificial weathering on the properties of heat treated wood
Yjidiz, Sibel; Dizman Tomak, Eylem; Yildiz, Umit C.; Ustaomer, Derya (Elsevier Sci Ltd, 2013)This study aims to investigate the change in chemical composition, surface characteristic and mechanical properties of heat treated four wood species (ash, iroko, Scots pine and spruce) during artificial weathering from ... -
Effect of Chemical Modification with Maleic, Propionic, and Succinic Anhydrides on Some Properties of Wood Flour Filled HDPE Composites
Cavdar, Ayfer D.; Mengeloglu, Fatih; Karakus, Kadir; Dizman Tomak, Eylem (North Carolina State Univ Dept Wood & Paper Sci, 2014)One of the biggest disadvantages of wood, as a potential reinforcement for thermoplastics, is its hydrophilicity. The aim of this study was to evaluate the effect of chemical modification of wood flour on mechanical, ... -
The effect of DMDHEU modification on physical and biological properties of parallel strand lumbers
Kurt, Ramazan; Dizman Tomak, Eylem (Elsevier Sci Ltd, 2019)In this study, the effect of dimethylol dihydroxyethyleneurea (DMDHEU) modification with four different concentration levels on several properties of parallel strand lumbers (PSLs) produced from poplar veneer strands with ... -
Effect of process variations of polycaprolactone modification on wood durability, dimensional stability and boron leaching
Ermeydan, Mahmut Ali; Kartal, Zeynep Nur; Dizman Tomak, Eylem (Walter De Gruyter Gmbh, 2019)In this study, in situ graft polymerization of epsilon-caprolactone (CL) was studied for its potential to limit boric acid (BA) leaching from wood, and to increase the dimensional stability and biological durability of ... -
Evaluation of dimensional stability, weathering and decay resistance of modified pine wood byin-situpolymerization of styrene
Ermeydan, Mahmut Ali; Babacan, Mert; Dizman Tomak, Eylem (Taylor & Francis Inc, 2020)In this study, polystyrene modified Scots pine (Pinus sylvestrisL.) wood was investigated upon artificial weathering, decay resistance, dimensional stability and water uptake properties. Polystyrene modification was carried ... -
An FT-IR study of the changes in chemical composition of bamboo degraded by brown-rot fungi
Dizman Tomak, Eylem; Topaloglu, Elif; Gumuskaya, Esat; Yildiz, Umit C.; Ay, Nurgul (Elsevier Sci Ltd, 2013)The objective of this study was to use FT-IR analysis to investigate the chemical composition of aged and un-aged bamboo specimens, with and without node sections, decayed by brown-rot fungi. Specimens were exposed to two ... -
Influence of tannin containing coatings on weathering resistance of wood: Combination with zinc and cerium oxide nanoparticles
Dizman Tomak, Eylem; Yazici, Omur A.; Şam Parmak, Ebru Devrim; Gönültaş, Oktay (Elsevier Sci Ltd, 2018)In this study, influence of tannin containing coating combined with zinc and cerium oxide nanoparticles on color, gloss, surface roughness and macroscopic changes of Scots pine wood after artificial weathering was studied. ... -
Influence of tannin containing coatings on weathering resistance of wood: Water based transparent and opaque coatings
Dizman Tomak, Eylem; Arican, Ferhat; Gönültaş, Oktay; Parmak, Ebru D. Sam (Elsevier Sci Ltd, 2018)The aim of this study was to improve weathering resistance of Scots pine wood by treating the surfaces with water based transparent and opaque wood coatings containing valex, mimosa and pine tannins. Samples coated with ... -
An investigation of surface properties of thermally modified wood during natural weathering for 48 months
Dizman Tomak, Eylem; Ustaomer, Derya; Ermeydan, Mahmut Ali; Yildiz, Sibel (Elsevier Sci Ltd, 2018)Weathering period and exposure conditions can affect the degradation rate of wood surfaces. Longer weathering exposure periods are more reliable for end-use performance evaluations, and therefore it is desirable to investigate ... -
KİMYASAL MODİFİKASYONUN ODUNDA SU ALMA, BOYUTSAL KARARLILIK VE BİYOLOJİK DAYANIMA ETKİSİ
Dizman Tomak, Eylem; Temiz, Ali (2014)Bu çalışmada, asetik, fitalik ve propiyonik anhidritler ile modifikasyon işlemine tabi tutulan odunun su alma oranı, boyutsal kararlılık ve mantar çürüklüğüne karşı performansı araştırılmıştır. Bu amaçla sarıçam odunu ... -
Limited oxygen index levels of impregnated Scots pine wood
Dizman Tomak, Eylem; Cavdar, Ayfer Donmez (Elsevier, 2013)In this study, effect of various concentrations of boron powder, mixture of boric acid and borax, fireproof agent based on liquid blend of limestone, and silicon oil on limited oxygen index levels (LOI) of S. pine wood was ... -
Long-Term Leaching Effect on Decay Resistance of Wood-Plastic Composites Treated with Boron Compounds
Cavdar, Ayfer Donmez; Dizman Tomak, Eylem; Mengeloglu, Fatih (Springer/Plenum Publishers, 2018)In this study, water absorption, thickness swelling and decay resistance of thermoplastic composites treated with three types of boron compounds was investigated. Spruce wood flour was treated with boric acid (BA), borax ...
