This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Polycarbonate Glazing: Maximum and Effective Temperatures for Outdoor Weathering Exposure in the Desert of Arizona
Journal Article
2009-01-0573
ISSN: 1946-3979, e-ISSN: 1946-3987
Sector:
Citation:
Sargent, J., Shuler, S., and Pickett, J., "Polycarbonate Glazing: Maximum and Effective Temperatures for Outdoor Weathering Exposure in the Desert of Arizona," SAE Int. J. Mater. Manf. 2(1):347-351, 2009, https://doi.org/10.4271/2009-01-0573.
Language:
English
Abstract:
We define an effective temperature (Teff) as an irradiance-weighted average temperature of a material during weathering. It is the constant temperature that would give the same amount of damage as the sample sustains during natural cycling and serves as a benchmark for predicting lifetimes. It is weakly dependant on the activation energy (Ea) of the degradation process. The annual effective ambient and black panel temperatures at an Arizona test site were 30° and 42°C, respectively, for Ea = 4–7 kcal/mol. Privacy color polycarbonate minivan sunroof windows had surface Teff = 45–46°C exterior, 54–58°C interior, and 49–52°C exterior blackout surfaces. Maximum recorded temperatures were 73°C, 87°C, and 81°C, respectively.
Recommended Content
Technical Paper | Use of PVB in Laminated Side Glass for Passenger Vehicle Interior Noise Reduction |
Ground Vehicle Standard | Class "A" Vehicle Glazing Shade Bands |
Technical Paper | Which Automotive Glazing Makes Me Feel More Comfortable |