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首页> 外文期刊>Journal of Applied Polymer Science >Mass Transfer Study of Chlorine Dioxide Gas Through Polymeric Packaging Materials
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Mass Transfer Study of Chlorine Dioxide Gas Through Polymeric Packaging Materials

机译：二氧化氯气体通过聚合物包装材料的传质研究

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摘要

The mass transfer profile (permeability, diffusion, and solubility coefficients) of chlorine dioxide POD, 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 002 through poly(ethylene terephthalate) and poly(lactic acid) were determined to be 51.05 +/- 4.35 and 129.03 +/- 2.82 kJ/mol, respectively.
机译：通过各种常见的聚合物包装材料，确定了食品和药品包装中使用的强氧化剂二氧化氯POD的传质曲线（渗透率，扩散率和溶解度系数）。开发了一种使用电化学检测器测量ClO2渗透的连续系统。观察到，与聚乙烯相比，双轴取向的聚（丙烯），聚（对苯二甲酸乙二酯），聚（乳酸），尼龙以及乙烯乙酸乙烯酯和乙烯乙烯醇的多层结构是更好的阻隔气态ClO2的材料，聚（氯乙烯）和聚苯乙烯。测定002通过聚对苯二甲酸乙二醇酯和聚乳酸的渗透的活化能分别为51.05 +/- 4.35和129.03 +/- 2.82kJ / mol。

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