Banca de QUALIFICAÇÃO: MIGUEL PERTILE PANDOLFO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : MIGUEL PERTILE PANDOLFO
DATA : 26/03/2021
HORA: 19:00
LOCAL: Google Meet
TÍTULO:

Influence of oxidation on the mechanical properties of plastic films laminated with PET-metal

PALAVRAS-CHAVES:

Metalized PET, aluminum oxidation, flexible package, strength of lamination, multilayers.

PÁGINAS: 19
GRANDE ÁREA: Engenharias
ÁREA: Engenharia de Materiais e Metalúrgica
RESUMO:

Polyethylene terephthalate (PET) films are widely used in multilayer
packages, mainly in the food industry, because of their greats mechanical
properties and barrier to gas and humidity diffusion. Many factors can affect
the packaging properties and the quality of the packaged product. Among
them, the strength of lamination between the thin films is highlighted. Due
to its great influence on the barrier properties of the material, this parameter
is crucial to keep the integrity of the product, however, there are not many
studies have been developed to understand it. This study aims to measure
oxidation's influence on the PET metalized thin-film concerning the film
layers' lamination strength to the others substrates of the composite film.
Three polymers substrates were selected to be laminated with metalized
PET: polyethylene (PE), bi-oriented polypropylene (BOPP), and PET. The
specimens will be divided into two groups, called A group and B group,
where the influence of the aluminum oxidation on the different structures
will be evaluated in each group. The oxidation influence on structures that
have received or not corona treatment will also be evaluated. The
delamination tests will be carried out in a Universal Mechanical Testing
Machine. The oxidation effects will also be evaluated based on the behavior
of the samples' morphological and barrier properties, using optical
microscopy and the impermeabilitu tests. It is expected to correlate the
degree of oxidation in the metalized films by reducing lamination forces and
understanding which material and type of oxidative treatment negatively
influence the most.

MEMBROS DA BANCA:
Interno - 1580090 - ANDRE ZIMMER
Interno - 2383615 - DAIANE ROMANZINI