MEIRA, R. C.; http://lattes.cnpq.br/2815084766295632; MEIRA, Roberta Costa.
Resumo:
The recycling of waste is being intensified worldwide in order to improve the quality of
recycled product and provide greater efficiency of the productive system. The
polyethylene used in co-extruded plastic packaging for the cosmetic industry along
with the use of ethylene vinyl alcohol (EVOH) has been a great advantage in
prolonging the useful cycle of the final product and cost optimization with protection
guaranteed. Thus, this work aims at assessing the conditions of use of recycled
material in packaging co-extruded with properties for application of a biomaterial. The
packages used in this study consist of percentages of recycled polyethylene, virgin
polyethylene and some composite samples by gas barrier (EVOH). Samples of liquid
soap, potted in containers, were evaluated by organoleptic tests, as well as by
measuring the hydrogen potential-pH, since the packages were characterized by
spectroscopy techniques in the Region of Fourier Transform Infrared (FTIR),
diffraction X-ray (XRD), optical microscopy (OM), Differential Scanning Calorimetry
(DSC), Total Thickness, permeability, Wettability, Mechanical Tensile Testing, Cell
Viability and Production of Nitric Oxide. The sensory test showed that there were
changes in the liquid soap when subjected to temperature. With the techniques FTIR,
XRD and DSC was possible to verify the presence of characteristics of polyethylene.
In MO and analysis of total thickness was possible to notice a change in the layers of
packaging, hence the total thickness. Wettability in no significant change. The
permeability test and mechanical characterization, highlighted the efficiency of the
packaging EVOH. In the MTT assay and NO revealed that there was no cytotoxicity
for both results. Thus it can be concluded that, according to the analyzed product
packaging, with percentages of 15% and 30% recycled polymer are recommended
for use in cosmetic industry, as it showed biocompatible.
