STUDY OF RECYCLED POLYETHYLENE AND POLYPROPYLENE

Abstract

The project aims to study the complete procedure followed for recycling of plastic waste, i.e., collection of waste scrap of plastic, transportation of this waste to the recycling centers, different processing parameters and finally the testing of waste and recycled samples. Further comparative study between waste and recycled polyethylene (high density polyethylene) and polypropylene was also carried out. The study is concerned with analyzing the collection, transportation, processing & testing of recyclable polymeric materials, i.e., polyethylene and polypropylene. Polyethylene and polypropylene are chosen here as recyclable materials. Extrusion process was chosen to observe the effect of recycling/ reprocessing. For comparative study between waste and recycled polyethylene and polypropylene, the effect was seen up to two processing cycles. There was a marginal decrease in physical and mechanical properties. There was a small increase in melt flow index while heat deflection tem...