Limits of UV-light acceleration on the photooxidation of low-density polyethylene

Lifetime prediction of polymers requires accelerated ageing based on an increase in UV light intensity and temperature. However, the representativeness artificial is still issue. The relevance highly UV-induced weathering raises question reciprocity failure depending polymer. influences irradiance temperature photooxidation kinetics polyethylene were studied to determine extent which increasing leads polyethylene. Polyethylene films subjected photooxidative experiments at various intensities different temperatures, amounts carbonylated photoproducts monitored by IR spectroscopy. results show for limits acceleration light.