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Spectroscopic Investigation of IJ Layer Yellowing

机译:IJ层泛黄的光谱研究

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摘要

The authors have investigated the use of fluorescence spectroscopic measurements as a method for the analysis of yellowing mechanisms in accelerated ageing tests. Two model films with defined composition were used to establish the spectroscopic method. The method was then applied to samples that had undergone accelerated ageing by ozone, thermal and humidity degradation, light exposure and chemical contamination. The use of several different spectroscopic methods allowed to discriminate between optical brightener degradation, yellow stain formation and light scattering. The results were compared to those obtained form spectral densitometer measurements.
机译:作者研究了荧光光谱测量法作为加速老化测试中泛黄机理分析的方法。使用具有确定成分的两个模型胶片来建立光谱方法。然后将该方法应用于因臭氧,热和湿气降解,曝光和化学污染而加速老化的样品。使用几种不同的光谱方法可以区分荧光增白剂的降解,黄斑的形成和光散射。将结果与通过光谱密度计测量获得的结果进行比较。

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