Kinetic Study of the Specific Migration of an Organotin Heat Stabilizer from Rigid Poly(vinyl chloride) into Food Simulants by FTIR Spectroscopy
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Abstract
Abstract The aim of this paper is the determination of the specific migration of an organotin heat stabilizer (Irgastab 17 MOK) from rigid poly(vinyl chloride) (PVC) into food simulants. For that purpose, two fatty simulants were used: hexane and ethanol. The test conditions were 15 d at 4 and 40°C and 3 h at 70°C. The rate of the mass loss of the films was followed as a function of time. FTIR spectroscopy was used to investigate the migration phenomena and to estimate the diffusion coefficients and the activation energy of diffusion by using mathematical models. The influence of various parameters such as temperature, time of contact and the nature of food simulant was considered. The results show that FTIR spectroscopy is a simple, low cost and rapid method which can be used to investigate the migration phenomena. Keywords: food simulantmigrationorganotin stabilizer The authors acknowledge Mrs A. Amara and B. Ouhalima for their collaboration and help for performing some of the FTIR work in the Industrial Chemical Department of University Saad Dahleb of Blida.
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Research context
OpenAlex topics: Polymer Science and PVC · biodegradable polymer synthesis and properties · Recycling and Waste Management Techniques
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