Amonyum floroborat katkılı PAN nanofiberlerin termal davranışının incelenmesi

Abstract

Bu çalışmada, Amonyum Floroboratın (AFB), Poliakrilonitril (PAN) polimerinin termal özelliklerine olan etkisi incelenmiştir. Bu amaç için, sürekli nanofiber üretim yöntemlerinden biri olan elektro-spin yöntemiyle, PAN ve AFB katkılanmış PAN (PAN-AFB) nanofiber formunda üretilmiştir. Üretilen nanofiberlerin ısıl bozunma davranışı termal gravimetrik analiz (TGA) ile incelenmiştir. Fiberlerin yapısal karakterizasyonu FT-IR ve SEM teknikleri kullanılarak gerçekleştirilmiştir. Elde edilen sonuçlara göre, PAN içerisine eklenen AFB miktarının artması ile nanofiberlerin ağırlık kaybının azaldığı ve termal kararlılığının arttığı gözlenmiştir. Polimer matrisine AFB katkı oranları %0,2, %0,4 ve %0,6 olarak uygulanmıştır. Bunun yanısıra, SEM analiz görüntüleri, AFB partiküllerinin Poliakrilonitril içerisinde homojen olarak dağıldığını göstermektedir. Deneysel çalışmaların sonuçlarına göre, AFB’nin PAN üzerindeki olumlu etkileri gözlenmiş ve termal direncini artırdığı sonucuna varılmıştır.

Keywords

• Amonyum Floroborat
• Elektro-spin
• Nanofiber
• Poliakrilonitril

Investigation of thermal behavior of ammonium fluoroborate doped PAN nanofibers

Abstract

In this study, the effect of Ammonium Fluoroborate (AFB) on the thermal properties of Polyacrylonitrile (PAN) polymer was investigated. For this purpose, PAN and AFB doped PAN (PAN-AFB) nanofibers were produced by electro-spinning method. The thermal degradation behavior of produced nanofibers was examined by thermal gravimetric analysis (TGA). Structural characterizations of the fibers were performed using FT-IR and SEM techniques. According to the results, it was observed that the weight loss of the nanofibers decreased and the thermal stability increased with the increase in the amount of AFB added to the PAN. AFB additive ratios of 0,2%, 0,4% ve 0,6% were applied to the polymer matrix. Besides, SEM analysis images show that AFB particles are homogeneously dispersed in Polyacrylonitrile. According to the results of the experimental studies, the positive effects of AFB on PAN were observed and it was concluded that these effects increased its thermal resistance.

Keywords

• Ammonium Fluoroborate
• Electro-spinning
• Nanofiber
• Polyacrylonitrile

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