Effect of plastomer on mechanical properties and characteristics of frozen cast polypropylene film for food packaging

Tan, Xin Yi (2017) Effect of plastomer on mechanical properties and characteristics of frozen cast polypropylene film for food packaging. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This research focuses on the effect of plastomer on mechanical properties and characteristics of frozen cast polypropylene for food packaging. Cast polypropylene (CPP) films produced by co-extrusion are known as one of the most popular and widely used in flexible packaging market. However, the nature of high crystallinity in PP structure during processing, the film brittleness increased as resulted in poor impact strength performances especially at lower temperature (below 0°). Several additives have been used in order to improve the impact energy of CPP films. The objectives of this research are to study the effect of plastomer on dimension measurement and mechanical properties of multilayer CPP films with different thicknesses and to characterize the CPP films by Scanning Electron Microscopy, X-ray Diffraction and Fourier Transform Infrared Spectroscopy. Tensile strength of CPP films has increased about 11.6 %~31.7 % with the presence of plastomer. Besides that, the impact strength was improved by approximately 110 %, 90 % and 37 % for 60.

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