Migration of new bio-based additives from rigid and plasticized PVC stabilized with epoxidized sunflower oil in the soil

2^nd International Conference and Expo on Ceramics & Composite Materials

July 25-26, 2016 Berlin, Germany

N Lardjane, N Belhaneche-Bensemra and V Massardier

Universit�© Mouloud Mammeri de Tizi-Ouzou, Algeria
Ecole Nationale Polytechnique, Algeria
Universit�© de Lyon, France

Posters & Accepted Abstracts: J Material Sci Eng

Abstract :

Plasticizers, primarily phthalates, are added to the originally rigid PVC polymer in order to make flexible products. Stabilizers are indispensable to provide the necessary stability of the PVC polymer against heat, light and weathering. Applicable stabilizers are heavy metals and organotin compounds as well as organic co-stabilizers, depending on the desired product properties. The significant increase of the use of PVC induces an increase in the use of plasticizers (phthalates) and thus generates the pollution of air, soil and water. In a previous work, commercial sunflower oil was epoxidized and the effects of ESO on the thermal degradation and stabilization of PVC in the presence of metal carboxylates were investigated. Vegetable oils are renewable raw materials. Their conversion to useful intermediates for polymeric materials is significant because of their low cost, ready availability, and possible biodegradability. The use of environmentally benign additives is another way to avoid the health and environmental issues. For that purpose, alternative plasticizer (DINA) and heat stabilizers (ESO) are used. The artificial aging of the PVC samples was investigated under uncontrolled temperature in the laboratory for 4 months. The modifications of the structure of the polymer were followed by Fourier transform infrared spectroscopy (FTIR). The morphological changes were followed by scanning electron microscopy (SEM). Furthermore, the evolution of the bacterial growth, variation of pH and variation of mass were considered.

Biography :

Email: nadiaalar@yahoo.fr