Soil burial degradation of new bio-based additives. Part II. plasticized poly(vinyl chloride) films

Commercial sunflower oil was epoxidized, and the epoxidized oil (ESO) was used as a new thermal stabilizer for poly(vinyl chloride) (PVC). Plasticized formulations stabilized with ESO and epoxidized soya bean oil as a commercial stabilizer were evaluated for comparison. Two plasticizers were used, d...

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Bibliographic Details
Published in:Journal of vinyl & additive technology 2013-09, Vol.19 (3), p.183-191
Main Authors: Lardjane, Nadia, Belhaneche-Bensemra, Naima, Massardier, Valèrie
Format: Article
Language:English
Subjects:
Chemical Sciences
Chlorides
Density
Material chemistry
Plasticizers
Polymers
Polyvinyl chlorides
Soil (material)
Soya bean oil
Sunflower oil
Weight loss
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Summary:Commercial sunflower oil was epoxidized, and the epoxidized oil (ESO) was used as a new thermal stabilizer for poly(vinyl chloride) (PVC). Plasticized formulations stabilized with ESO and epoxidized soya bean oil as a commercial stabilizer were evaluated for comparison. Two plasticizers were used, dioctyl phthalate and diisononyl adipate. The aging of the PVC samples was investigated in landfill soil for 24 months. The modifications of the structure of the polymer were followed by Fourier, transform infrared spectroscopy. Furthermore, the variations of density and mechanical properties (tensile and Shore D hardness) were considered, and the variations of the mass of the samples, the glass transition temperature (Tg), the molar mass distribution, and the weight loss were followed as a function of duration of soil burial. The morphological changes were tracked by scanning electron microscopy. Results showed that the nature of the plasticizer and heat stabilizer affects the properties of PVC as well as the phenomena of migration and biodegradation. J. VINYL ADDIT. TECHNOL., 19:183‐191, 2013. © 2013 Society of Plastics Engineers
ISSN:1083-5601
1548-0585
DOI:10.1002/vnl.21320