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Current Applied Polymer Science

Author(s): Nadia Gallouze, Naima Belhaneche-Bensemrab*, Sophie Commereuc and Vincent Verney

DOI: 10.2174/2452271604666210820093434

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Investigation of Artificial Ageing of PVC Stabilized with Epoxidized Sunflower Oil as Biobased Derivative

Page: [148 - 156] Pages: 9

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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.

Keywords: PVC, epoxidized sunflower oil, thermal stabilizer, artificial ageing, thermal properties, FTIR spectroscopy.

Graphical Abstract

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