Disposal of synthetic polymer packaging is a continuous disadvantage to environment. In  order to overcome this problem, inthis poster ill present, the development of a new approach using two different methods for making bilayer-coated-paper using bio polymeric coating materials including corn starch as the bottom layer and zein protein as the top layer.  First method is rod-coating and second dip-coating. To improve the properties of srach, glycerol was used as plasticizer. The effect of the different coating methods employed was inspected by studying the mechanical and barrier properties of the coated paper.  The coated papers had shown an enhanced performance by decreasing  the water vapor and oxygen transmission rates, studied at various temperatures and Relative Humidity (RH) conditions.  The scanning electron microscopy (SEM) showed that  all the pores of uncoated paper were covered with plasticized starch and zein which resulted in enhanced properties. The result suggested that surface of the paper coated with biodegradable and food safe biopolymers can be used for the manufacturing of paper based packaging material in food sector.

Different coating approaches for enhancing the barrier and mechanical properties of papers using biopolymers

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