Kolajen hidrolizat/karboksimetil selüloz filmlerinin mekanik ve bariyer özelliklerinin SiO2 nanoparçacıkları kullanımı ile geliştirilmesi

Year 2019, Volume: 25 Issue: 3, 320 - 324, 28.06.2019

Buğra Ocak

Abstract

Küresel
bir sorun olan kirlilik ve biyolojik olarak parçalanmayan plastik ambalaj
filmlerinin artan kullanımı çevresel kaygılara neden olmuştur. Dolayısıyla,
biyolojik olarak bozunabilir filmler gibi doğal polimer materyalleri kullanma
eğilimi artmıştır. Bu makale, paketleme/kaplama uygulamaları için yeni kolajen
hidrolizat/karboksimetil selüloz/nano-SiO₂ filmlerini hazırlamayı ve
karakterize etmeyi amaçlamaktadır. Sonuçlar, filmlere nano-SiO₂
katılımının %1'den %4'e arttırılmasıyla, kalınlık ve çekme mukavemetinde
belirgin bir artışa (p<0.05) neden olduğunu, ancak kopma uzamasını önemli
ölçüde azalttığını göstermektedir. Nano-SiO₂, filmlerin su buharı
geçirgenliği ve suda çözünürlük değerlerini büyük ölçüde düşürmüştür. Ayrıca,
filmlerdeki nano-SiO₂ oranındaki artışlar şeffaflık değerlerini
arttırmış, ultraviyole ve görünür aralıktaki ışık geçirgenliğinde azalma
sağlamıştır. Bu çalışma, nano-SiO₂'nin kolajen
hidrolizat/karboksimetil selüloz filmlerine ilavesinin, üretilen filmin
özellikleri üzerinde önemli etkiler verdiğini göstermektedir. Kolajen
hidrolizatı/karboksimetil selüloz filmlerinin özelliklerinin geliştirilmesi,
filmlerin kaplama/ambalaj amaçlı kullanım potansiyelini arttıracaktır.

Keywords

Kolajen hidrolizat, Karboksimetil selüloz, SiO2, Su buharı geçirgenliği, Su çözünürlüğü

Development of the mechanical and barrier properties of collagen hydrolysate/carboxymethyl cellulose films by using SiO2 nanoparticles

Abstract

Pollution
is a global problem and the increased use non-biodegradable plastic packaging
films have caused environmental concerns. Thus, there is a tendency to use
natural polymer materials, such as biodegradable films. This paper aims to
prepare and characterize novel collagen hydrolysate/carboxymethyl
cellulose/nano-SiO₂ films for packaging/coating applications. The
results indicate that the incorporation of nano-SiO₂ in films from
1% to 4% caused significant increase (p<0.05) in thickness and tensile
strength but significantly decreased the elongation at break. Nano-SiO₂
drastically reduced the water vapor permeability and water solubility values of
films. Furthermore, the increments in nano-SiO₂ proportion in films
increased the values of transparency and provided a reduction in the light transmission
in the ultraviolet and visible range. This study demonstrates that nano-SiO₂
addition to collagen hydrolysate/carboxymethyl cellulose films gives
significantly effects on properties of film produced. The enhancement of film
properties shows the potential for using collagen hydrolysate/carboxymethyl
cellulose films for coating/packaging purposes.

Keywords

Collagen hydrolysate, Carboxymethyl cellulose, SiO2, Water vapor permeability, Water solubility

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