Affiliation:
1. Departement de l'Environnement, Ecole Nationale Polytechnique, Alger,Algeria
2. Universite Clermont Auvergne, Clermont-Ferrand,France
Abstract
Objective:
The objective of this work is to study the artificial ageing of semi-rigid and
plasticized polyvinyl chloride (PVC) stabilized with epoxidized sunflower oil (ESO) as a biobased
derivative in combination with zinc and calcium stearates.
Methods:
For comparison, a formulation of PVC plasticized and stabilized with epoxidized soya
bean oil (ESBO) was considered. Artificial ageing was carried out during the 304 hours. Samples
were taken off after: 48, 146, 234 and 304 hours and then characterized. The evolution of density,
glass transition temperature and morphology, was followed as a function of the time. The structural
modifications of polymer were analyzed by Fourier transform infrared spectroscopy in attenuated
total reflectance and transmission modes.
Results:
The results showed a little decrease of density, a considerable increase of the glass transition
temperatures values and a change of morphology. All changes in the properties of PVC relate
to formation of new chemical structures.
Conclusion:
Globally, it was found that ESO exhibited similar performances to those of ESBO.
Publisher
Bentham Science Publishers Ltd.
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