Arkış, Esen
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Arkış, E.
Arkış, E
Arkis, E.
Arkis, E
Arkis, Esen
Arkış, Esen
Arkış, E
Arkis, E.
Arkis, E
Arkis, Esen
Arkış, Esen
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03.02. Department of Chemical Engineering
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Former Staff
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Sustainable Development Goals
1NO POVERTY
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2ZERO HUNGER
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3GOOD HEALTH AND WELL-BEING
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4QUALITY EDUCATION
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5GENDER EQUALITY
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6CLEAN WATER AND SANITATION
1
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7AFFORDABLE AND CLEAN ENERGY
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8DECENT WORK AND ECONOMIC GROWTH
1
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9INDUSTRY, INNOVATION AND INFRASTRUCTURE
1
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10REDUCED INEQUALITIES
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11SUSTAINABLE CITIES AND COMMUNITIES
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12RESPONSIBLE CONSUMPTION AND PRODUCTION
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13CLIMATE ACTION
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14LIFE BELOW WATER
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15LIFE ON LAND
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16PEACE, JUSTICE AND STRONG INSTITUTIONS
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17PARTNERSHIPS FOR THE GOALS
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Scholarly Output
10
Articles
5
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7959/5131
Supervised MSc Theses
0
Supervised PhD Theses
0
WoS Citation Count
348
Scopus Citation Count
399
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0
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0
WoS Citations per Publication
34.80
Scopus Citations per Publication
39.90
Open Access Source
6
Supervised Theses
0
| Journal | Count |
|---|---|
| Polymer Degradation and Stability | 2 |
| Applied Methodologies in Polymer Research and Technology | 1 |
| Chemistry and Chemical Technology | 1 |
| Journal of Applied Polymer Science | 1 |
| Journal of Polymer Engineering | 1 |
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Now showing 1 - 10 of 10
Article Citation - WoS: 2Citation - Scopus: 2A Study of Chemical and Physical Changes During Biaxially Oriented Polypropylene Film Production(Walter de Gruyter GmbH, 2003) Ülkü, Semra; Balköse, Devrim; Arkış, Esen; Sipahioğlu, MuzafferPolypropylene films obtained during the biaxial orientation process were characterized by energy dispersive X-ray analysis (EDX), scanning electron microscopy. X-ray diffraction, differential scanning calorimetry, infrared spectroscopy. Inorganic particles with Al, Si, Na, Mg, Ti, K,O elements were present in biaxially oriented films. Polypropylene had molecules with both isotactic configuration and it was crystallized only in isotactic α phase. The films drawn in one and two directions had unit cells with b axis parallel to surface of the films. The antioxidants present in the films were consumed during processing, preventing polypropylene oxidation in air at high processing temperatures. One surface of the films contained less polypropylene and had functional groups rich in oxygen such as C=O and COO.Book Part Aluminium-Coated Polymer Films as Infrared Light Shields for Food Packing(Taylor and Francis Ltd., 2015) Arkış, Esen; Balköse, Devrim[No abstract available]Article Citation - WoS: 8Citation - Scopus: 5Tin Soaps in Emulsion Pvc Heat Stabilization(John Wiley and Sons Inc., 2002) Arkış, Esen; Balköse, DevrimIn this study, the effect of a liquid stabilizer based on organotins on PVC heat stability is investigated. Control and films with tin soap heat stabilizer Sn500K were prepared by solvent casting and they were heated at 160 and 180°C for different time periods. X-ray fluorescence spectroscopy analysis showed that tin was present in Sn500K and it was lead-free. DSC analysis showed that glass-transition temperature of films with Sn500K increased from 67 to 75-85°C by heating for 15 min at 180°C. IR spectroscopy indicated that concentration of carboxylate groups of Sn500K decreased with heating. Films with Sn500K did not degrade for short heating periods; however, degradation occurred in long heating times. Low concentration of Sn500K was recommended, since at high levels incompatibility with PVC and acceleration of degradation was observed. In the high temperature range, control and stabilized samples degraded in the same manner in two stepsBook Part A Study on Absorption and Reflection of Infrared Light by the Uncoated and Al Coated Surfaces of Polymer Films Techniques(Apple Academic Press, 2014) Arkış, Esen; Balköse, DevrimPolymer films coated with a thin layer of aluminum or aluminum oxide are extensively used in food packing as heat shields. The infrared rays were not transmitted through the films and were reflected protecting the contents from the harmful effects of infrared light. The quantitative measurement of the film thickness and infrared light reflection and absorption capacities of aluminum coated films used as packing materials were possible using infrared spectroscopy. © 2015 by Apple Academic Press, Inc.Article Citation - WoS: 10Citation - Scopus: 10Morphology, Order, Light Transmittance, and Water Vapor Permeability of Aluminum-Coated Polypropylene Zeolite Composite Films(John Wiley and Sons Inc., 2011) Balköse, Devrim; Oğuz, Kaan; Özyüzer, Lütfi; Tarı, Süleyman; Arkış, Esen; Özmıhçı Ömürlü, FilizIn this study, the polypropylene-zeolite composite films having 2-6 wt % natural zeolite were coated with a thin film of aluminum (Al) by magnetron sputtering, and the contribution of the Al coating on film properties was investigated. The samples were characterized by EDX, X-ray diffraction, SEM, AFM, UV-visible spectroscopy, and water vapor permeation analyses. The surface of the films coated with a smooth Al film having 98-131 nm thickness. EDX revealed that Al percentage on the surface appeared to be as 8-10 wt % indicating contribution of polymer surface under Al film to analysis. XRD analysis showed that the grain size of Al at the surface was 22-29 nm. The surface roughness increased after Al-coating process. The transmission of coated films was very low for both UV and visible regions of the light spectrum. Permeation analysis indicated that water vapor permeation was lower for Al-coated material.Conference Object Citation - WoS: 137Citation - Scopus: 154Thermal Stabilisation of Poly(vinyl Chloride) by Organotin Compounds(Elsevier Ltd., 2005) Arkış, Esen; Balköse, DevrimThe effect of LSN 117 (dioctyl tin bis isooctyl thioglycollate, an organotin compound) on the heat stability of plasticised PVC was investigated in this study. The organotin stabiliser had carbonyl and carboxylate groups and PVC contained traces of Fe, Zn, Ca, Cu and Sn. The heat stability of the films were tested at 140 °C and 160 °C or 180 °C by heating in an air circulation oven up to 2 h and by measuring HCl evolved using a Metrohm 763 PVC thermomat and by thermogravimetric analysis. The onset of HCl evolution was at 14.3 and 2.5 h at 140 °C and 160 °C, respectively, for PVC film without LSN117. On the other hand, the film with LSN117 did not evolve HCl in 30.3 h at 140 °C. HCl started to evolve from the films with LSN 117 in 14.3 h at 160 °C. The TGA curve also indicated PVC film with LSN 117 degraded at higher temperatures than control films. LSN 117 was found to be a good heat stabiliser for plasticised PVC and it did not have any detrimental effect on mechanical properties.Article Citation - WoS: 4Citation - Scopus: 4Characterization of a Pearlescent Biaxially Oriented Multilayer Polypropylene Film(Lviv Polytechnic National University, 2015) Arkış, Esen; Çetinkaya, Hayrullah; Kurtuluş, Işıl; Ulucan, Utku; Aytaç, Arda; Balcı, Beste; Balköse, DevrimThe morphology, composition, optical, thermal and mechanical properties of a commercial pearlescent and multilayer biaxially oriented polypropylene (BOPP) films were determined. The structure and orientation of BOPP films were confirmed by FTIR spectroscopy, X-ray diffraction and EDX analysis. The films surface roughness was determined by AFM method. The tensile strength of the films was determined in machine and transverse directions.Article Citation - WoS: 187Citation - Scopus: 208Synergistic Effect of Natural Zeolites on Flame Retardant Additives(Elsevier Ltd., 2005) Demir, Hasan; Arkış, Esen; Balköse, Devrim; Ülkü, SemraThe thermal degradation and flammability of intumescent fire-retardant polypropylene matrix composites consisting of ammonium polyphosphate (APP) as an acid source and blowing agent, pentaerythritol (PER) as a carbonisation agent and natural zeolite (clinoptilolite rich, Gördes II) as a synergistic agent were examined. APP and PER combinations were examined at different ratios (0.25, 0.33, 0.5, 1, 2, 3, and 4) for optimisation of the formulation for flame retardancy. The zeolite was incorporated into flame retardant formulation at four different concentrations (1, 2, 5, and 10 wt%) to investigate the synergism between the flame retardant materials. The thermal degradation and flammability of composites were characterized by thermogravimetric analysis (TGA) and by limiting oxygen index (LOI) measurement and horizontal burning (HB) tests. A synergistic effect in flame retardancy was observed when natural zeolites were used in combination with APP and PER.Book Part Citation - Scopus: 11Organotin Compounds as Pvc Stabilizers(Wiley, 2008) Arkış, EsenWhen poly(vinyl chloride) is fabricated, it passes between rollers (calendars) at about 200 ◦C, which causes elimination of some HCl at allylic defects in the polymer, as shown below (Figure 3.3.1). Furthermore, the released HCl induces further elimination, giving a polyolefin structure with a yellow coloration, which turns red, and then black, after which the polymer becomes brittle. This degeneration can be inhibited by organotin stabilizers, often organotin mercaptides that appear to have two principal functions. Firstly, they react with the HCl to give organotin chlorides, which do not catalyze the elimination process. Secondly, they substitute the chloride at the reactive sites, introducing other groups, such as mercaptide groups, which are not easily eliminated. Organotin maleates may also remove diene units by the Diels–Alder reaction.Book Citation - Scopus: 5Aluminium-Coated Polymer Films as Infrared Light Shields for Food Packing(Apple Academic Press, 2014) Hamrang, Abbas; Balköse, Devrim; Zaikov, Gennadij Efremovich; Haghi, A. K.This book covers a broad range of polymeric materials and provides industry professionals and researchers in polymer science and technology with a single, comprehensive book summarizing all aspects involved in the functional materials production chain. This volume presents the latest developments and trends in advanced polymer materials and structures. It discusses the developments of advanced polymers and respective tools to characterize and predict the material properties and behavior. This book has an important role in advancing polymer materials in macro and nanoscale. Its aim is to provide original, theoretical, and important experimental results that use non-routine methodologies. It also includes chapters on novel applications of more familiar experimental techniques and analyses of composite problems that indicate the need for new experimental approaches. This new book: • Provides a collection of articles that highlight some important areas of current interest in key polymeric materials and technology. • Gives an up-to-date and thorough exposition of the present state of the art of key polymeric materials and technology. • Describes the types of techniques now available to the engineers and technicians and discusses their capabilities, limitations, and applications. • Provides a balance between materials science and chemical aspects, basic and applied research. • Focuses on topics with more advanced methods. • Emphasizes precise mathematical development and actual experimental details. • Explains modification methods for changing of different materials properties. © 2020 Elsevier B.V., All rights reserved.