HDPE/ZnO ve HDPE/Hidroksiapatit Nanokompozitlerin Termal ve Morfolojik Özelliklerinin İncelenmesi
Year 2020,
Volume: 32 Issue: 1, 259 - 266, 03.03.2020
Betul Çiçek Ozkan
,
Melek Güner
,
Tarık Selçuk Şeker
Abstract
Yüksek yoğunluklu polietilen (HDPE) matrisine farklı oranlarda çinko oksit (ZnO) ve hidroksiapatit (HAp) nano parçacıklar takviye edilerek baskı tekniği ile farklı konsantrasyonlarda nanokompozit malzemeler üretilmiştir. Kullanılan nano takviye malzemelerinin ve kompozit üretim yönteminin HDPE matrisli kompozitler üzerindeki termal, morfolojik ve kristalinite özellikleri araştırılmıştır. Hazırlanan kompozitlerin X-ışını kırınım deseni (XRD) yöntemi kullanılarak kristalinite özellikleri incelenmiş ve HDPE’nin karakteristik 2θ pikleri elde edilmiştir. HDPE/ZnO nanokompoziti için ZnO fazına ait olan 2θ pikleri tespit edilmiş ve ortalama kristal boyutunun 14 ile 26 nm arasında değiştiği belirlenmiştir. HDPE/HAp nano kompozitinde HAp fazına ait olan 2θ pikleri ve ortalama 10 ile 25 nm arasında değişen kristal boyutları tespit edilmiştir. XRD sonuçları her iki kompozit içerisinde nano takviye malzemelerinin iyi bir biçimde dağıldığını göstermektedir. Ayrıca artan takviye miktarı ile kompozitin kristalinitesinin arttığı belirlenmiştir. Termal analiz sonucunda her iki kompozit grubu için tespit edilen takviye oranının gerçek değerlerle örtüştüğü ve artan takviye miktarıyla ısı akısının arttığı belirlenmiştir. Morfolojik incelemeler sonucunda nanokompozit malzemelerin yüzey yapısının saf HDPE’den farklı olduğu, tabakalanmaların meydana geldiği ve artan takviye miktarıyla bu değişimin daha net bir biçimde görüldüğü gözlenmiştir.
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Year 2020,
Volume: 32 Issue: 1, 259 - 266, 03.03.2020
Betul Çiçek Ozkan
,
Melek Güner
,
Tarık Selçuk Şeker
References
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- [3] Gilmer, T.C. and Williams, M., 1996. Polymer mechanical properties via a new laboratory tensile tester, Journal of chemical education, 73(11), 1062.
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- [22] Fouad, H., Elleithy, R., and Alothman, O.Y., 2013. Thermo-mechanical, wear and fracture behavior of high-density polyethylene/hydroxyapatite nano composite for biomedical applications: effect of accelerated ageing, Journal of Materials Science & Technology, 29(6), 573-581.
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- [26] Shen, L., Bian, X., Lu, X., Shi, L., Liu, Z., Chen, L., Hou, Z., and Fan, K., 2012. Preparation and characterization of ZnO/polyethersulfone (PES) hybrid membranes, Desalination, 293, 21-29.
- [27] Paz, A., Guadarrama, D., López, M., E González, J., Brizuela, N., and Aragón, J., 2012. A comparative study of hydroxyapatite nanoparticles synthesized by different routes, Química Nova, 35(9), 1724-1727.
- [28] Kaygili, O., Ates, T., Keser, S., Al-Ghamdi, A.A., and Yakuphanoglu, F., 2014. Controlling of dielectrical properties of hydroxyapatite by ethylenediamine tetraacetic acid (EDTA) for bone healing applications, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 129, 268-273.