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

Yıl 2017, , 190 - 200, 31.05.2017

Mürsel Ekrem

https://doi.org/10.31202/ecjse.305851

Cited By: 4

Öz

 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.

Anahtar Kelimeler

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

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

Öz

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.

Anahtar Kelimeler

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

Kaynakça

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