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Title: Study of thermal degradation of PVC plasticized formulations costabilized with D-sorbitol and triphenyl phosphite
Author: Haro-Gutierrez, P.
Rodriguez-Lopez, O.
Arellano, J.
Mendizábal, E. M.
Jasso, C.F.
Arellano, M.
Gonzalez-Ortiz, L.J.
Issue Date: 2011
Abstract: PVC is generally degraded during processing, producing several undesirable effects. In this work, mixtures of calcium and/or zinc stearates and epoxidized soybean oil are used as stabilizers. In addition, to improve overall stability, D-sorbitol or triphenyl phosphite were added as costabilizers. The formulation composition was systematically varied considering the following parameters: a) presence of epoxidized soybean oil, b) CaSt2/ZnSt2 ratio and, c) presence and type of costabilizer. Thermal stability was followed during isothermal heating by determining: a) the accumulation rate of some conjugated polyenes and, b) the changes in the tensile properties.
Appears in Collections:Producción científica UdeG (prueba)

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