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Highly Predictive Accelerated Weathering of Engineering Thermoplastics
Technical Paper
2003-01-1192
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Current accelerated weathering protocols such as SAE J1960 or ASTM G26 do not provide reliable, predictive results for engineering thermoplastics. Correlation factors among resin types and even different colors of a single resin have variations that are 60-100% of the mean at the 95% confidence level, making these tests useless for lifetime prediction or even reliable ranking of materials. We have developed improved conditions using CIRA/sodalime-filtered xenon arc, a more rain-like water spray, and occasional sponge-wiping of the samples. The data for gloss loss and color shift agree very well with Florida data giving a correlation factor of 3100±680 kJ/m2 (at 340 nm) per Florida year at the 95% confidence level. The acceleration factor is 7.6x.
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Citation
Pickett, J. and Umamaheswaran, V., "Highly Predictive Accelerated Weathering of Engineering Thermoplastics," SAE Technical Paper 2003-01-1192, 2003, https://doi.org/10.4271/2003-01-1192.Also In
References
- Simms J.A. J. Coatings Tech . 59 45 1987
- Gillen K.T. Celina M. Polym. Degrad. Stabil 71 15 2001
- Gillen K.T. Clough R.L. Polym. Degrad. Stabil 24 137 1989
- Andrady A.L. Searle N.D. Crewdson L.F.E. Polym. Degrad. Stabil 35 235 1992
- Pickett J.E. Polym. Preprints 42 1 425 2000
- Ahrens C.D. Meteorology Today 5th Brooks/Cole 1994 194