Parte II - Estudo do efeito da dose de radioesterilização sobre as propriedades do poli(tereftalato de etileno) - PET reciclado

Abstract

The packing products are in constant development, in function, especially of the globalization processes. The open market after the financial stabilization and the technologic innovations, changed the population habits, costumes and the environment matters. As the year passing by, the necessity to reduce costs becames more extremely the hard study of polymerics materials, copolymers, blends and its recycling, always seeking a better wrapping of the product, especially food concerns increasing its product’s shelf life. The food sterilization processes and polymer modifications through irradiation are targets of growing studies in current industries linked with the nutrition and packing sectors. The aim of this paper is to study the radiosterilization dose effect on the recycled PET properties. The tensile strength at break increased for irradiated recycled PET. Therefore, it is possible to say that the recycled PET is crosslinking by electron beam at room temperature with 25kGy radiosterilization dose.