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Predictive Weathering Tool for Color Formula Development
Technical Paper
2003-01-0798
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A model has been developed and implemented at GE Plastics that predicts a material's color shift when weathered. The material's color shift is due to the summation of color shifts from each individual component. By individually measuring the change in each component's optical coefficients upon weathering and using a multiple light scattering model, one can predict the color shift of a material composed of mixtures of these components. The model has been shown to have a standard deviation of 0.4 to 0.9 when predicting color shifts E*, for PC-polyester copolymers, ABS, and ABS/PC blends using an automotive exterior test, SAE J1885, ASTM D 4674, and ASTM D 4459.
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Citation
Graf, J. and Umamaheswaran, V., "Predictive Weathering Tool for Color Formula Development," SAE Technical Paper 2003-01-0798, 2003, https://doi.org/10.4271/2003-01-0798.Also In
References
- Van de Hulst, H.C. “Multiple Light Scattering. Tables, Formulas, and Applications.” Academic Press New York 1980
- Born M. Wolf E. “Principles of Optics” MacMillan & Co. New York 1964
- 95 Standard Practice for Computing the Colors of Objects by Using the CIE System
- 93 Standard Test Method for Calculation of Color Differences From Instrumentally Measured Color Coordinates
- Marquardt, D.W. 1963 Journal of the Society for Industrial and Applied Mathematics 11 431 441
- Picket, J. Umamaheswaran, V. Highly Predictive Weathering of Engineering Thermoplastics SAE 2003-03M-73
- Method and Tool to Predict Material Color Shifts Due to Weathering
- Method and System for Formulating a Color Match