Title:Investigation of Artificial Ageing of PVC Stabilized with Epoxidized Sunflower Oil as Biobased Derivative
Volume: 4
Issue: 2
Author(s): Nadia Gallouze, Naima Belhaneche-Bensemrab*, Sophie Commereuc and Vincent Verney
Affiliation:
- Departement de l'Environnement, Ecole Nationale Polytechnique, Alger,Algeria
Keywords:
PVC, epoxidized sunflower oil, thermal stabilizer, artificial ageing, thermal properties, FTIR spectroscopy.
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.