Quantification of oxidation on the surface of a polymer through photography

J. Yáñez M.; A. Estrada M.

doi:10.1117/12.851120

3 December 2009 Quantification of oxidation on the surface of a polymer through photography

J. Yáñez M., A. Estrada M.

Proceedings Volume 7499, Seventh Symposium Optics in Industry; 74990S (2009) https://doi.org/10.1117/12.851120
Event: Seventh Symposium on Optics in Industry, 2009, Guadalajara, Jalisco, Mexico

Abstract

Oxidation in polymeric materials and special polyurethane is manifested by a yellow color, highly visible in white soles for footwear, besides presenting changes in its properties. Its importance varies according to the application of the material for which it was created. The most common way to detect this process is through a visual color change on the surface. In the present proposal we present a technique using digital photography for quantifying the color change in the polymer. The analysis of the photography is realized by means of projective geometry, since, relates the plane of the object and the one of the image of the object. This allows determining the area of the studied object, and by means of a histogram, which is determined each time for to record the progress of oxidation on the surface of the material. We present results of visual analysis and its behavior through a mathematical model.

Citation Download Citation

J. Yáñez M. and A. Estrada M. "Quantification of oxidation on the surface of a polymer through photography", Proc. SPIE 7499, Seventh Symposium Optics in Industry, 74990S (3 December 2009); https://doi.org/10.1117/12.851120

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