Simplified Approach Based on Polynomial Equations to Predict the Permeability of Micro-perforated Polymeric Films

摘要

A simplified approach to predict the mass transport properties of micro-perforated films was presented in this work. In particular, the proposed mathematical model was based on a second-degree polynomial function. Different types of micro-perforated films with two thicknesses (35 and 25 mu m) were tested for gas and water vapour permeability, under proper conditions. The films differed in both number of holes per unit area and hole diameter. Corresponding non-perforated films were also tested. The experimental data obtained were used to validate the model. Moreover, the surface response plot of the interactions between hole diameter and number of holes per area relative to oxygen, water vapour and carbon dioxide permeability were determined. Results of the mean relative deviation modulus (E%) between the experimental and predicted data confirmed the ability of the proposed model to predict the permeability of micro-perforated films. Copyright (c) 2016 John Wiley & Sons, Ltd.