Effective Parameters on the Diffusion Coefficient Modeling of Solvent Molecules in the two-Component Polymer Systems

Polymeric Materials are widely used during their Shelf life in Exposure to a Variety of Chemicals. Therefore, it is very important to Study the Behavior of Solvent Molecules Diffusion from these Materials. Studies on the Solvent molecules Diffusion into Polymer Blends are not well understood. In Polymer Composites and Blends, Changes in the Volume Fraction of each Component change the penetration transfer behavior. In Polymer Blends, by changing the Volume Fraction of the Blends Components, a Phase Transition Occurs between the Matrix and the Dispersed phase, which can change the Diffusion behavior of the penetrating molecules due to the volume fraction changes of the Blends. Various Models have been proposed by various Researchers to the Modeling of volume fraction changes Effect on the Transport Characteristics of solvent Molecules into two-component Polymer Systems. Among these Models, Robson Model and Equivalent Box Model by Klarik (EBM) are the most complete Models Predicting the Transport Behavior of Solvent Molecules into Polymer Blends and Composites. The Results of Studies on the Average Difference of the modeled data and the experimentally data for the NR/NBR Blends Show that the Robson model with 1.4% has the Least Difference with the experimentally data.