Preparation of epoxidized sunflower oil metal soap derivatives and their use as heat stabilizers for polyvinyl chloride

Authors : Ouassila CHELIL, Naima BELHANECHEBENSEMRA, Daniel Lopez GARCIA, Marta FERNANDEZGARCIA, Mohamed Tahar BENANIBA

Pages : 582-593

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The aim of this work was to prepare metal soaps of epoxidized sunflower oil insert ignore into journalissuearticles values(ESO); and use them as thermal stabilizers for polyvinyl chloride insert ignore into journalissuearticles values(PVC);. For that purpose, commercial sunflower oil was first epoxidized and then used to prepare insert ignore into journalissuearticles values(Ba, Zn, Pb, and Cd); metal soap derivatives, which were characterized by Fourier transform infrared insert ignore into journalissuearticles values(FTIR); spectroscopy, thermogravimetric analysis insert ignore into journalissuearticles values(TGA);, and differential scanning calorimetry insert ignore into journalissuearticles values(DSC);. The prepared metal soaps derivatives of ESO were used as thermal stabilizers for plasticized PVC. Discoloration, residual thermal stability at 200 $^{\circ}$C , and rheological properties of PVC samples were tested. The structural modifications were investigated by UV-visible spectroscopy. The best thermal stabilization effects were observed in the presence of Pb soap of ESO. Furthermore, metal derivatives of ESO were classified according to their stabilizing effect as follows: Pb-ESO > Ba-ESO > Cd-ESO > ESO > Zn-ESO.
Keywords : PVC, metal soap epoxidized sunflower oil derivatives, thermal stabilization, rheology, TGA, DSC, UV visible