Effect of the TiO2 Concentration On the Photocatalytic Self-Cleaning Properties Of Polyethylene Teraphthalate Fibers

Öz

In this article self-cleaning properties of polyethyleneterephthalate (PET) fibers is investigated as a function of TiO2 particle content added during fiber spinning. After fibers were spun they were woven and stained with black tea, coffee, cherry juice, and ketchup. The sample fabrics were then exposed to different light sources such as daylight and solar simulator to monitor the stain removal over time. Furthermore the mechanical properties of the fibers with various amounts of TiO2 content were compared. Morphologies of the fibers were investigated with both optical and scanning electron microscopes (SEM). Using the differential scanning calorimeter (DSC) the crystallization behavior of the samples was compared. In the range of studied concentrations of TiO2 it is observed that self-cleaning properties can be achieved without significantly sacrificing from the mechanical properties of the fibers.

Anahtar Kelimeler

• polyethyleneterphthalate,titania,self cleaning,fiber,photocatalysis

Polietilen Teraftalat (PET) Liflerde Katkılanan TiO2 Konsantrasyonunun Fotokatalitik Kendini Temizleme Özelliklerine Etkisi

Öz

Bu çalışmada eğirme esnasında katkılanan TiO2 miktarına bağlı olarak, polietilen tereftalat liflerde (PET) kendi kendini temizleme özelliği incelenmektedir. Lifler eğirildikten sonra dokunarak siyah çay, kahve, vişne suyu ve ketçap ile lekelenmiştir. Ardından numune kumaşlar gün ışığı ve Xenon lamba gibi farklı ışık koşullarına maruz bırakılarak lekelerin zamanla giderimi incelenmiştir. Ayrıca, üretilen katkılı liflerin mekanik performansı katkısız lifler ile kıyaslanmış ve morfolojileri, optik ve taramalı elektron mikroskopları (SEM) ile analiz edilmiştir. Diferansiyel taramalı kalorimetre (DSC) kullanılarak liflerin kristallenme davranışlarında farklılık olup olmadığı analiz edilmiştir. Yapılan çalışma neticesinde; liflerin mekanik özelliklerinde ve kristallenme davranışlarında çalışılan katkılama oranı aralığına göre, büyük değişimler olmadan fotokatalitik etki sayesinde kumaşa kendi kendini temizleme özelliği kazandırılabileceği tespit edilmiştir.

Anahtar Kelimeler

• polietilen teraftalat,titanyum oksit,kendini temizleme,fotokataliz,fiber

Destekleyen Kurum

Korteks Mensucat Sanayi ve Ticaret A.Ş.

Teşekkür

Çalışma kapsamındaki hammadde temini, deneysel veri, iplikler ve kumaşların üretimini sağlayan Korteks Mensucat Sanayi ve Ticaret A.Ş.’ye teşekkürlerimizi sunarız.

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