31 Oct 2023
Mini-PV-modules containing PEVA films that contain 18, 24 and 33% VA content respectively have been subjected to UV ageing (1000 hours at 340 nm wavelength and 650C) to simulate aging by sun.The change in yellowness index of the PEVA films, representing extent of degradation, increases with VA content . VA content in PEVA also increases the fluorescence intensity and contour size in the encapsulated polymer films after UV ageing suggesting?higher?decay.
