Modeling the Water Barrier Properties of Nylon Film Intended for Food Packaging Applications
2003
Del Nobile, M.A. | Buonocore, G.G. | Altieri, C. | Battaglia, G. | Nicolais, L.
This paper presents a mathematical model able to predict the water barrier properties of nylon film as a function of the water activity at the upstream and downstream side of the film. To validate the model, water sorption and permeation tests were conducted at 25 °C. The fitting and predictive ability of the proposed model was successfully tested by fitting the model to the sorption data and by predicting the nylon water permeability coefficient, respectively. The implications of the adopted approach on practical aspects of packaging were pointed out by comparing the nylon water barrier properties as evaluated by means of a permeation test and that in the real working conditions.
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