Estudio del impacto del reciclaje en las propiedades mecánicas, térmicas y reológicas del polímero HDPE

Abstract

[ES] El TFG, asistido por la profesora Lidija Slemenik Per e, actual encargada del departamento de Ciencia de Materiales de la facultad de Mechanical Engineering de la Universidad de Eslovenia, trata sobre el estudio de las propiedades de los polímeros reciclados hasta 100 veces, y el impacto de los procesos de reciclaje sobre las mismas.

[EN] Plastic waste grows every year, therefore the recyclability of plastics has been studied vastly to get the higher performance of the used polymers. In this thesis, the effects of recycling and rejuvenating agents are explained in a polymer commonly know as polypropylene (PP). First, a wide theoretical overview where the physical properties (thermal, mechanical and rheological) are explained and their dependence with the structure and molecular weight and methods of recycling are presented. Later, the effects of the recycling process and how physical properties decrease with the molecular weight reduction and extruding cycles are explained. Also, the study of the addition of the additives is explained in this thesis and how physical properties are increased, depending on the different types of fillers or concentrations. This thesis is supported by several studies that enable the understanding of the behavior of recycled PP; moreover, the results of different experiments are shown.