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| Comparative Study on Accelerated Outdoor Exposure Methods with Solar Tracking and Reflective Energy Accumulation |
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| DOI：10.7643/issn.1672-9242.2022.11.020 |
| KeyWord:polymer xenon lamp weathering concentrated nature sunlight exposure exposure methods withsolar tracking accumulation weatherability yellowing |
| Author | Institution |
| LIU Dan |
Pan Asia Automotive Technology Center Co., Ltd., Shanghai , China |
| ZHANG Xiao-lue |
Pan Asia Automotive Technology Center Co., Ltd., Shanghai , China |
| DU Yan-wen |
Shanghai Guandian Quality Inspection and Technology Service Co., Ltd., Shanghai, , China |
| MAO Jing-qiao |
Donghua University, Shanghai , China |
| ZHANG Heng |
Shanghai Representative Office of American Q-Lab Company, Shanghai , China |
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| Abstract: |
| This paper aims to find the characteristics and value ofoutdoor accelerated exposure method with solar tracking reflection and concentrated energy.Based on several typical transparent polymer material samples, the characteristics of these test methods are compared by comparing the correlation, acceleration and discrimination of the yellowing results of natural exposure in Florida’s typical subtropical humid environment, xenon lamp accelerated weathering test in the automotive exterior decoration laboratory and Arizona’s solar tracking reflection shaped energy outdoor accelerated exposure. The correlation between outdoor accelerated exposure and natural exposure is higher than that between xenon lamp accelerated test and natural exposure. Compared with natural exposure, the average acceleration ratio of outdoor accelerated exposure and the relative difference of acceleration ratio of different samples are obviously smaller than that of xenon lamp accelerated test. The distinction between natural exposure and outdoor accelerated exposure is also significantly greater than that of xenon lamp accelerated test in laboratory. The outdoor accelerated exposure method has well balanced the correlation, acceleration, acceleration consistency and discrimination, and is suitable for the verification test of polymer materials. |
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