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

Öz

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.

Anahtar Kelimeler

• 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

Kaynakça

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