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首页> 外文期刊>Journal of Applied Polymer Science >Correlation study of damp heat and pressure cooker testing on backsheets
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Correlation study of damp heat and pressure cooker testing on backsheets

机译：背板湿热和压力锅测试的相关性研究

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For photovoltaic (PV) modules, high-quality backsheets are essential. To verify these qualities, hot and humid tests of up to 1000 h are standard in the PV industry. Damp heat (DH) tests are useful for evaluating material quality and infant failures, especially for materials that are sensitive to hydrolysis. However, shorter test periods are needed. Hence, the objective of this study was to investigate and correlate the aging behavior of hydrolysis-sensitive polyester [poly(ethylene terephthalate) (PET)] based backsheets after exposure to DH and pressure cooker conditions. The material properties, such as thermal and mechanical parameters, correlated well between the pressure cooker at 120 degrees C and the DH test, with the qualification that differences in the failure mechanism were seen after 96 and 2000 h, respectively. Nevertheless, it should be acceptable to use pressure cooker tests (PCTs) for fast material testing. The PCT is proposed to significantly reduce the testing time for infant failures and material quality to around 4 days for PET-based backsheets. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44230.
机译：对于光伏（PV）模块，高质量背板至关重要。为了验证这些质量，在光伏行业中，长达1000小时的高温和潮湿测试是标准的。湿热（DH）测试可用于评估材料质量和婴儿故障，尤其是对水解敏感的材料。但是，需要更短的测试时间。因此，本研究的目的是研究和关联基于水解敏感性聚酯[聚对苯二甲酸乙二酯（PET）]的底片在DH和高压锅条件下的老化行为。材料特性（例如热和机械参数）在120摄氏度的压力锅和DH测试之间具有很好的相关性，可以确定在96 h和2000 h后分别观察到破坏机理的差异。但是，使用压力锅测试（PCT）进行快速材料测试应该是可以接受的。提议将PCT显着减少基于PET的底片的婴儿衰竭和材料质量的测试时间至大约4天。 （c）2016 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，44230。

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