STUDIES ON MECHANICAL PROPERTIES OF RECYCLED POLYPROPYLENE BLENDED WITH VIRGIN POLYPROPYLENE

Abstract

During the recycling process the material undergoes various operations that bring out several modifications in the molecular structure. As a matter of fact, the mechanical properties of the recycled products and their structural organization are quite different compared to those composed of virgin material [1]. Also, particular attention is attached to the relationship and several consequent changes in the mechanical properties. The aim of this work is to study the properties of recycled polypropylene in particular through the analysis of degradation by the mechanical properties from virgin and recycled material. These mixtures were analysed as a function both of blend composition and of the number of reprocessing of the recycled fraction. The results of virgin and the reprocessing polypropylene were correlated with the mechanical properties.