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Termokromik Malzemelerin Kaplama Malzemesi Olarak Karakterizasyonu

Binaya giren güneş enerjisi miktarını kontrol etmek, binaların enerji ihtiyaçlarını azaltmak küresel ısınmaya karşı mücadele etmede alınabilecek önlemlerdir. Bu amaçla, pencereler enerji tasarrufu üzerinde etkili olan özel ince film ile kaplanmıştır. Seralar, güneşten koruyucular, konutlar, ofisler ve otomobillerin ön camları da dahil olmak üzere akıllı kaplamaların çok fazla uygulama alanı vardır. Bu gibi kaplamaların geliştirilmesi, çevresel faydalar sağlayarak enerji maliyetlerinde önemli tasarruf sağlar [1]. Araştırmalar yeni nesil malzemelerin geliştirilmesine yol açmıştır. Malzeme teknolojisindeki gelişmeler, "akıllı malzeme" teriminin sıcaklık, ışık gibi bazı koşullara istenen yanıtı vermesine neden olan ek işlevler kazanmıştır. Değişen sıcaklığa bağlı optik özellikleri değiştirerek ışık ve ısı enerjisini kontrol eden yeni nesil termokromik akıllı camları üretme konusunda gelişme vardır. Bu çalışmada, özellikle inşaat sektöründe kullanılan dışa bağımlılığı azaltacak, uluslararası düzeyde rekabet edebilirliği artıran ve enerji verimliliğini destekleyecek uygulamalar için yenilikçi kaplama malzemeleri geliştirilmesi amaçlanmaktadır. 33°C’de yeşil, 45°C’de siyah ve 65°C’de mavi renk değiştiren termokromik pigmentlerin tane boyutu ölçülmüş ve TG / DTA analizleri gerçekleştirilmiştir. Pigmentler USB dijital mikroskop ile incelenmiştir ve renk ölçümleri spektrofotometre kullanılarak yapılmıştır. Termokromik pigmentlerin artan ve azalan sıcaklık ile renk değişimi infrared termometre ile incelenmiştir. Karakterizasyon çalışmaları X-ışını kırınım analizi ve taramalı elektron mikroskobu analiz teknikleri ile gerçekleştirilmiştir.

Anahtar Kelimeler:

Kaplama, Cam, Termokromik pigment, Karakterizasyon

Termokromik Malzemelerin Kaplama Malzemesi Olarak Karakterizasyonu

Controlling the amount of solar energy entering the building, reducing the energy needs of buildings is a measure that can be taken to combat global warming. For this purpose, the windows are covered with special thin film which is effective on energy conservation. There are a lot of application for intelligent coatings, including greenhouses, sun protectors, housing, offices and automobile windshields. The development of such coatings provides environmental benefits leading to considerable savings in energy costs [1]. Researches have led to the development of new generation materials. Developments in materials technology gained extra functions that cause the term "intelligent material" to give the desired response to some conditions such as temperature, light, etc. Improving on produce a new generation of thermochromic intelligent glasses that control the light and heat energy by changing the optical properties depending on the changing temperature. In this study, it is aimed to develop innovative coating materials for applications which will reduce external dependence on glass used especially in the construction sector, increase competitiveness at international level and support energy efficiency. The grain size of the thermochromic pigments, which change color at 33°C green, black at 45°C, and blue at 65°C, were measured and TG/DTA analyzes were carried out. Pigments were examined with USB digital microscope and color measurements were made using spectrophotometer. The color change of thermochromic pigments with increasing and decreasing temperature was examined by infrared thermometer. Characterization studies were carried out by X-ray diffraction analysis and scanning electron microscopy analysis techniques.

Keywords:

Coating, Glass, Thermochromic pigment, Characterization,

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