Modeling of mass transfers between food simulants and treated plasticized PVC

PVC is often used in food packaging and blood bags. This study concerns mass transfers between plasticized PVC, having been subjected to a treatment, and liquid food or food simulants. The treatment reduces the diffusion of the plasticizer and the influence of some factors of this processing are investigated. A mathematical model, able to simulate these mass transfers and to quantify the treatment parameters, is proposed.