Yazar "Okutan, Mustafa" seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • [ N/A ]
    Öğe
    Electrical and Mechanical Properties of LDPE/PANI Composites
    (Amer Scientific Publishers, 2016) Alkan, Ümit; Kılıç, Mehmet; Karabul, Yaşar; Yamak, Hale Berber; Okutan, Mustafa; Icelli, Orhan
    The thermal, mechanical and dielectric properties of Low Density Polyethylene/Polyaniline (LDPE/PANI) composites filled were investigated. LDPE/PANI composites were prepared using different weight percentage of PANI by compression molded in an electrically heated press. An objective of this study was to investigate dielectric and mechanical proprieties of LDPE/PANI composite films. The samples were characterized by Fourier-transform infrared spectroscopy analysis (FT-IR), tensile tests, thermogravimetry/differential thermogravimetry (TG/DTA) analysis and dielectric measurements. The FT-IR spectrum showed that PANI remained doped in the composite, and this improved the dielectric and mechanical proprieties of LDPE/PANI composite films. As compared to the mechanical and dielectric properties of pure LDPE, LDPE/0.7 wt% PANI composites have been found to have better mechanical and dielectric properties. The real (epsilon') and the imaginary parts (epsilon '') of the complex dielectric constant were measured in the frequency range of 100 Hz-10(6) Hz at room temperature (RT).
  • Küçük Resim
    Öğe
    Gamma-Ray Irradiation Effect on Mechanical and Dielectric Properties of Volcanic Basalt Mineral Reinforced Low Density Polyethylene Films
    (OFICYNA WYDAWNICZA POLITECHNIKI WROCLAWSKIEJ, WYBRZEZE WYSPIANSKIEGO 27, 50-370 WROCLAW, POLAND, 2017) Kılıç, Mehmet; Karabul, Yaşar; Alkan, Ümit; Yağcı, Özlem; Okutan, Murat; Okutan, Mustafa; İçelli, Orhan
    The aim of the work is to study the mechanical and dielectric properties of low density polyethylene (LDPE) that can be modified by basalt mineral under low dose gamma irradiation. The composite films are prepared by a hot pressing method (15 MPa, 418 K, for about 10 min), and then irradiated by Co-60 gamma-rays in the dose range varied between 6 and 24 gray (Gy). Mechanical and dielectric properties of these samples are examined by means of stress-strain measurements and dielectric spectroscopy in the frequency range of 100 Hz –15 MHz at the room temperature. Experimental measurements evidence that the mechanical properties of LDPE were weakened by basalt additives and radiation. The tensile strength of 0.5 wt.% basalt additivity, which has an optimum value increased by 30 percent when compared to pure LDPE without radiation. When LDPE and LDPE/basalt composites were radiated between 6 to 24 Gy, the mechanical properties of both samples decreased at almost the same rate. The LDPE/ 0.5wt.% basalt composite sample without gamma-irradiation was the one with the highest mechanical strength. In the absence of radiation, the low (static) frequency real part of dielectric constant is increased with basalt additives. The dielectric strength reached a maximum value up to 20.0 wt.% basalt additive at 6 Gy dose. However, the polymeric structure of the sample was deteriorated.
  • [ N/A ]
    Öğe
    Structure and Impedance Properties of Some Basalt Materials Under Magnetic Field
    (Amer Scientific Publishers, 2016) Çınar, Meltem; Kılıç, Mehmet; Karabul, Yaşar; Canlı, Nimet Yılmaz; Alkan, Ümit; Okutan, Mustafa; Icelli, Orhan
    Volcanic basalt rocks are collected from different chemical compound, that is dark colored and comparatively rich in iron and magnesium, which is located at almost every country in the world. This study examined two different basalt samples collected from different regions of Van province in Turkey. The dielectric dispersion properties of the some Basalt rocks coded Sample 1 and Sample 2 were analyzed in order to determine the parameters such as surface conductivity, dissipation factor and complex dielectric functions. Morphological analysis, particle size measurement and electrical impedance analyzer measurements were assessed in order to determine dielectric constant, dielectric loss, dielectric strength and relaxation time. The research has revealed that due to its high dielectric dissipation and factor high resistance, Sample 1 can be used a precious material in numerous industrial applications that involve electromagnetic shielding or electrostatic dissipation applications.