Highly Predictive Accelerated Weathering of Engineering Thermoplastics

2003-01-1192

03/03/2003

Event
SAE 2003 World Congress & Exhibition
Authors Abstract
Content
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.
Meta TagsDetails
DOI
https://doi.org/10.4271/2003-01-1192
Pages
7
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.
Additional Details
Publisher
Published
Mar 3, 2003
Product Code
2003-01-1192
Content Type
Technical Paper
Language
English