Abstract
The mass transfer profile (permeability, diffusion, and solubility coefficients) of chlorine dioxide (ClO2), a strong oxidizing agent that is used in food and pharmaceutical packaging, was determined through various common polymeric packaging materials. A continuous system for measuring permeation of ClO2, using an electrochemical detector, was developed. It was observed that biaxially-oriented poly(propylene), poly (ethylene terephthalate), poly(lactic acid), nylon, and a multilayer structure of ethylene vinyl acetate and ethylene vinyl alcohol were better barriers for gaseous ClO2, as compared to polyethylene, poly(vinyl chloride), and polystyrene. The activation energies of permeation for ClO2 through poly(ethylene terephthalate) and poly(lactic acid) were determined to be 51.05 ± 4.35 and 129.03 ± 2.82 kJ/mol, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 2929-2936 |
| Number of pages | 8 |
| Journal | Journal of Applied Polymer Science |
| Volume | 114 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 Dec 2009 |
| Externally published | Yes |
Keywords
- Activation energy
- Chlorine dioxide
- Diffusion
- Films
- Gas permeation
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