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Gas barrier properties of metal oxide/polymer composite films

机译：金属氧化物/聚合物复合膜的气体阻隔性能

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The aim of this study was to characterise the gas barrier properties of a range of metal oxides deposited on poly (ethylene terephthalate) (PET) substrates. Gas transmission rates and activation energies have been collated for the nanocomposite films. Calculations based on the ideal laminate theory (ILT) were made, based on the gas transmission data, in order to assess the effective permeabilities of the different coatings. It was shown that ITO presented the highest resistance to oxygen permeation whereas AlO{sub}xN{sub}y exhibited the best barrier to water vapour transmission. Oxygen permeation mechanism through these films is dominated completely by the presence of defects in the barrier layer. For water vapour permeation, the situation is different and there is evidence to suggest that the mechanism can sometimes involve some kind of interaction of the water molecule with the oxide.
机译：该研究的目的是表征沉积在聚（乙二醇酯）（PET）底物上的一系列金属氧化物的阻气性质。用于纳米复合膜的气体传输速率和活化能量被整理。基于气体传输数据，制备基于理想层压理论（ILT）的计算，以评估不同涂层的有效渗透率。结果表明，ITO呈现了对氧气渗透的最高抗性，而AlO {Sub} XN {Sub} Y展示了水蒸气传输的最佳屏障。通过这些薄膜的氧渗透机制通过阻挡层中存在缺陷来完全占主导地位。对于水蒸气渗透，情况不同，有证据表明该机制有时可能涉及水分子与氧化物的某种相互作用。

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