Yazar "Göktepe, Fatma" için listeleme
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Analysis of polyacrylonitrile nanofiber yarn formation in electrospinning by using a conical collector and two oppositely charged nozzles
Buzol Mülayim, Beyza; Göktepe, Fatma (Taylor and Francis Ltd., 2021)Nanofiber production by electrospinning has become a common production method as it is an easy and flexible system producing nanofibrous webs. However, direct spinning of nanofibers into a yarn would lead to conversion of ... -
Artificial Muscles from Fishing Line and Sewing Thread
Haines, Carter S.; Lima, Marcio D.; Li, Na; Spinks, Geoffrey M.; Foroughi, Javad; Madden, John D. W.; Baughman, Ray H.; Göktepe, Fatma; Göktepe, Özer (Amer Assoc Advancement Science, 2014)The high cost of powerful, large-stroke, high-stress artificial muscles has combined with performance limitations such as low cycle life, hysteresis, and low efficiency to restrict applications. We demonstrated that ... -
Carbon-based torsional and tensile artificial muscles driven by thermal expansion
Haines, Carter S.; Lima, Marcio D.; Li, Na; Spinks, Geoffrey M.; Foroughi, Javad; Madden, John D. W.; Baughman, Ray H.; Göktepe, Fatma; Göktepe, Özer (Spie-Int Soc Optical Engineering, 2014)[No Abstract Available] -
The Comparison of Physical Characteristics of Anatolian Native Goat Down Fibers With Cashmere
Göktepe, Fatma; Canipek, Gülçin; Soysal, Mehmet İhsan (Ege Univ, 2019)Very fine and soft down fibers of native goats can have a potential as a valuable raw-material source for high-quality products. Therefore, down fibers were collected from native goats raised in different regions of Turkey, ... -
Dendrimer Teknolojisi Kullanılarak Aromaterapi Özelliğine Sahip Fonksiyonel Yünlü Kumaş Eldesi
Atav, Rıza; Namırtı, Osman; Yavaş, Arzu; Göktepe, Fatma (2017)Bu araştırmada dendrimerlerin yapılarındaki dallar arasındaki boşluklara çeşitli molekülleri kapsülleyebilme yeteneğinden yararlanılarak aromaterapi özelliğine sahip fonksiyonel yünlü dokuma kumaşların üretimi üzerinde ... -
The effect of collector parameters on nanofiber yarns produced by electro yarn spinning machine with conical collector
Göktepe, Fatma; Buzol Mülayim, Beyza; Göktepe, Özer; Alisoy, Hafız; Sabit, B. (Taylor and Francis Ltd., 2021)In this work, electrospun yarns were produced by a nanofiber yarn spinning machine with a conical collector. In the first part, two different polymers (PAN and PVDF-HFP) were used in nanofiber yarn spinning with two different ... -
The effect of material and thickness of collector electrode on fiber fineness in electrospinning
Göktepe, Fatma; Şimşek, G.; Göktepe, Özer; Çömlekçi, S. (Fiber Society, 2010)[No abstract available] -
Eğrilebilir Karbon Nanotüpler ve Bu Özel Liflerden Üretilen Teknik İplikler
Göktepe, Fatma (2015)Karbon nanotüpler; yüksek mukavemet ve modül, yüksek elektriksel ve ısıl iletkenlik, nispeten yüksek ve düşük sıcaklıklarda stabilite gibi birçok üstün özelliğe sahip olan düşük yoğunluklu ileri malzemelerdir. Bu malzemeler ... -
Elektrik Alan Lif Çekimi (Elektrospınnıng) İle Nano Liflerden İplik Üretim Yöntemleri
Göktepe, Fatma; Buzol Mülayim, Beyza (2015)Elektrik alan ile lif çekimiyle nanometre ölçeğinde inceliğe sahip elyaf üretimi, liflerin sağladığı üstün performans yanında kullanılan yöntemin basit olması ve esnek üretim şekli nedeniyle son yıllarda yaygın bir uygulama ... -
Elektrik Alanda Lif Çekim Yöntemi (Electrospinning) ile Eğrilen Nanolif İpliklerin Yapısal ve Mekanik Özelliklerinin İncelenmesi
Göktepe, Fatma (Tekirdağ Namık Kemal Üniversitesi, 2019)Elektrik alanda lif çekim (electrospinning) yöntemi ile elde edilen lifler, genellikle dokusuz yüzey halinde ve küçük miktarlarda üretilmekte, bu durum ise üstün özellikli liflerin kullanım alanını sınırlamaktadır. Bu ... -
An investigation of the effect of delivery speed and nozzle air pressure on viscose yarn properties in Vortex Spinning
Yalı, Volkan; Akdoğanözü, Resul; Kalaycı, Yunus Emre; Göktepe, Fatma (Chamber of Textile Engineers, 2020)In this study, 100% viscose yarns were spun at different delivery speed and nozzle air pressure values (within a range of 300-450 m/min and 0.46-0.58 MPa, respectively) by using Murata Vortex spinning system (MVS). Then, ... -
Karbon Nanotüp (Knt) Esaslı Yüksek Performanslı İpliklerin Yapısal Ve Mekanik Özelliklerinin İncelenmesi
Göktepe, Fatma; Yalı, Volkan (Namık Kemal Üniversitesi, 2016)Karbon nanotüpler; yüksek mukavemet ve modül, yüksek elektriksel ve ısıl iletkenlik, nispeten yüksek ve düşük sıcaklıklarda stabilite gibi birçok üstün özelliğe sahip olan düşük yoğunluklu ileri malzemeler arasında yer ... -
LONG PATH TOWARDS TO SUCCESS IN ELECTROSPUN NANOFIBER YARN PRODUCTION SINCE 1930's: A CRITICAL REVIEW
Göktepe, Fatma; Mulayim, Beyza Buzol (Autex, 2018)Direct conversion of nanofibers into a yarn formed by electrospinning has begun to draw attention recently while pioneering attempts in fact go back to 1930s. Once nanofiber yarns are spun successfully by electrospinning, ... -
Mechanism of stroke enhancement by coiling in carbon nanotube hybrid yarn artificial muscles
Haines, Carter S.; Lima, Marcio D.; Li, Na; Spinks, Geoffrey M.; Foroughi, Javad; Madden, John D. W.; Baughman, Ray H.; Göktepe, Fatma; Göktepe, Özer (Spie-Int Soc Optical Engineering, 2014)[No Abstract Available] -
Modeling and Analysing the Tensile Behavior of Fabric Samples
Vas, Laszlo Mihaly; Göktepe, Fatma; Tamas, Peter; Halasz, Marianna; Özdemir, Dicle; Palicska, Livia Kokas; Szakaly, Norbert (Budapest Tech, 2013)This paper presents a structural-mechanical model for describing the tensile behavior of textile fabrics in main directions based on the fiber-bundle-cells modeling theory and method. The applicability of this model, created ... -
Nanofiber yarn production methods by electrospinning
Göktepe, Fatma; Mülayim, B.B. (Chamber of Textile Engineers, 2015)Nano-size fiber production by electrospinning has been a common application method recently due to both being an easy and flexible system and high performance of the fibers produced. Generally in this system, fibers are ... -
A new method in fabric drape measurement and analysis of the drape formation process
Al-Gaadi, Bidour; Göktepe, Fatma; Halasz, Marianna (Sage Publications Ltd, 2012)In this paper we present the Sylvie three-dimensional (3D) Drape Tester, developed for fabric drape measurements, and its special auxiliary device that exerts dynamical impact on fabrics during draping. In addition, a new ... -
Production and analysis of electrospun pa 6,6 and pva nanofibrous surfaces for filtration
Dinç, S. D.; Göktepe, Fatma (Inst. Nat. Cercetare-Dezvoltare Text. Pielarie, 2021)Electrospun nanofibrous surfaces were produced by using two different polymers (PA 6,6 and PVA) at three different levels of polymer feeding rate (0.2, 0.6 and 1.0 ml/h, respectively) and three different levels of production ... -
Some Properties of Bacterial Cellulose Produced by New Native Strain Gluconacetobacter sp. A06O2 Obtained from Turkish Vinegar
Karahan, Aynur Gul; Akoglu, Aylin; Çakır, İbrahim; Kart, Arzu; Çakmakçı, M. Lütfü; Uygun, Ayşegül; Göktepe, Fatma (Wiley, 2011)The aim of the study was to isolate and identify an acetic acid bacterial strain having high cellulose yield and to investigate some physicochemical properties of bacterial cellulose (BC). Acetic acid bacteria were isolated ... -
Spinnable carbon nanotubes and technical yarns produced by these special fibers
Göktepe, Fatma (Chamber of Textile Engineers, 2015)Carbon nanotubes are highly special materials having low density but high strength and modulus, high electrical and thermal conductivity and stability at relatively low and high temperatures. While these materials are ...