Comparison of Photodegradation Behavior of Virgin and Recycled Polycarbonate

초록

This study investigates the photodegradation behavior of virgin and recycled polycarbonate (PC) under identical accelerated weathering conditions. To evaluate degradation trends under light exposure, Fourier transform infrared universal testing machine (UTM), optical microscopy (OM) were employed to examine changes in chemical structure, radation than virgin PC, showing greater photo-oxidation, more pronounced discoloration, and larger losses in crystallinity and thermal stability. These results indicate that structural damage accumulated during previous use and processing accelerates photodegradation under light exposure. The findings highlight the vulnerability of recycled PC and the need for effective stabilization strategies in light-exposed environments.

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