Study on Development of New Eco friendly Polymer Blends and Their Degradation by Microbial and Photolytic Techniques

Abstract

In this study work has been done on Development of eco-friendly polymer blends and their degradation by microbial and photolytic techniques.Synthetic polymers likePVA, PVC and PVP have been modified by grafting techniques and blending with some natural occurring polymers. solvent casting method has been used to make polymer blend films. The blending helps us to get desired polymeric film in different composition.Natural polymers like cellulose, starch and chitosan used to blend with thesesynthetic polymers Some blends prepared with natural fibers like wood husk, pine husk, sugar bagasse husk and coconut husk. The blending initiated at high temperature, with particular solvent of different polymerand constant stirring. After the modification, new blends have been investigated by FTIR, SEM,XRD, DTA and TGASuch prepared blend were given exposure of photolytic and microbes in different environment and their degradability was checked. newlinePVA-SBH-chitosan blends have shown high degradation upto 80% while PVC blend with SBH and chitosan /WH ( husk) have shown degradation but very slow in the range of 10 to 15% in 3months. But my modification and blends non-biodegradable polymer like PVC and polythene can be degraded with combined effect of UV exposure and biological treatment. This modification made a modified material more useful which can be used in different industries. Recent studies have highlighted that the fulfillment of important conditions for PVC use is considered by an optimum ratio between hydrophilic and hydrophobic parts of the polymer surface. The research was conducted with the purpose to increase the hydrophilic part by modifications.. It was demonstrated that modification of PVA, PVC and PVP proves to be a facile method to change the physical nature, in order to become suitable for the special required applications. Modified polymer blends are more biodegradable due to its hydrophilic nature and has more application in plastic industry. newline