Mechanical Properties of MWCNT Reinforced Polyvinyl Alcohol Nanofiber Mats by Electrospinnig Method

Abstract

 In this study, the production of weight ratios of 1, 3 and 5 % multi-walled carbon nanotube reinforced / unreinforced polyvinyl alcohol (PVA) nanofiber mats was carried out by electrospinning method. Tensile strength, modulus of elasticity and elongation amounts were investigated by tensile tests under static loading with / without reinforced nanofiber mats. % 1 MWCNT reinforced PVA nanofiber mats, ç , E and toughness increased by 50, 88 and 12 %, respectively, when compared with PVA nanofiber mats. Fourier Transform Infrared Spectroscopy (FT-IR) and Differential Scanning Calorimetry (DSC) analyzes were performed on the chemical changes and interactions occurring in the system formed by combining the produced nanofiber mats with PVA and MWCNT. In addition, scanning electron microscope (SEM) images were also investigated to determine the physical properties of reinforced / unreinforced PVA solutions and to monitor the surface porosity of networked polymers at the specification of nanofiber mats.

Keywords

• Electro spun,Multi Wall Carbon Nanotubes,Polyvinyl Alcohol,Nanofiber Mats

Elektro-eğirme Yöntemiyle MWCNT Takviyeli Polivinil Alkol Nanoelyaf Keçelerin Mekanik Özellikleri

Abstract

Bu çalışmada elektro-eğirme metodu kullanılarak ağırlıkça % 1, 3 ve 5 oranlarında çok cidarlı karbon nanotüp takviyeli/takviyesiz polivinilalkol (PVA) nanoelyaf keçelerin üretimi gerçekleştirilmiştir. Takviyeli/takviyesiz üretilen nanoelyaf keçeler, statik yükleme altında çekme deneyleri yapılarak çekme dayanımı, elastiklik modülü ve uzama miktarları incelenmiştir. % 1 MWCNT takviyeli PVA nanoelyaf keçe, s_ç, E ve toklukları PVA nanoelyaf keçe ile karşılaştırıldığında sırasıyla % 50, 88 ve 12 artış gözlenmiştir. Üretilen nanoelyaf keçelerin PVA ve MWCNT ile bir araya gelmesi ile oluşan sistemde meydana gelen kimyasal değişimleri ve etkileşimleri Fourier Dönüşümlü Kızılötesi Spektroskopisi (FT-IR) ve Diferansiyel Taramalı Kalorimetre (DSC) analizleri yapılmıştır. Ayrıca nanoelyaf keçelerin özelliklerinin belirlenmesinde takviyeli/takviyesiz PVA çözeltilerinin fiziksel özellikleri ve ağ yapılı polimerlerin yüzey gözenekliliğinin izlenebilmesi amacıyla taramalı elektron mikroskobu (SEM) görüntüleri de incelenmiştir.

Keywords

• Elelktro-eğirme,Çok Cidarlı Karbon Nanotüp,Polivinilalkol,Nanoelyaf Keçeler

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