2017 Volume 29 Issue 3 Pages 86-92
We investigated about accelerated weathering tests suitable for EEA resin. Anchor clamp covers were examined as samples. Accelerating factors were calculated by comparison of accelerated samples and used samples (used for 23-40 years). Tensile stress and oxidized layer’s thickness were measured for the comparison. The measuring method of the oxidized layer’s thickness on EEA was developed for this investigation. Accelerated weathering tests were performed by using carbon arc light and “super Xe light” (3 times higher irradiance than sunlight). The deterioration products of the samples accelerated by super Xe light is different from the used samples. This difference does not occur when the carbon arc light is used. We have concluded that the accelerated weathering test using carbon arc light is suitable for EEA resin, and further study is needed for using super Xe light.
