Researchers of Saveh IAU Create Resilient Nano-composite Packaging

Wednesday, August 24, 2016 - 03:50

Researchers of Islamic Azad University, Saveh branch, have improved materials used in food packaging by applying two kinds of clay and iron oxide Nano-particles at the same time.

According to the Iran Nano Technology Initiative Council, the most important issue taken into account in packaging products is increasing shelf life of its contents. The new material can increase food shelf life through adjusting and creating a suitable atmosphere inside the package as needed.

As Dr. Gholamreza Khalaj, faculty member of Saveh IAU, stated, the research has been done in order to improve various properties of polymeric materials used in food and pharmaceutical packaging by simultaneously applying clay and iron oxide Nano-particles.

In this research, two different kinds of nanoparticles, clay and iron oxide, are used to reduce oxygen permeability. They have different mechanisms so using them at the same time will significantly increase the shelf life of their contents.

“Producing Nano-composites Granules with the aim of creating thin films of packaging was placed on the agenda in this investigation. In order to prevent oxygen entries physically, modified Montmorillonite Nano-clays with di(hydrogenated tallow)dimethyl ammonium chloride were used. Then the iron was synthesized and different percentages of clay and iron oxide Nano-particles, added to the polymer melt. Next, packaging film was produced by a double-strand extruder. Finally, the film was characterized and its mechanical strength and permeability to oxygen features evaluated,” he explained.

The study was carried out by Dr. Gholamreza Khalaj and Dr. Hamid Reza Ahmadi, faculty members of Saveh IAU, and Nanotechnology expert, Mohammad Javad Khalaj.

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