Abstract
AbstractDegradation of polyurethane samples by UV, combination of UV–thermal, and natural weathering were studied by photoacoustic spectroscopy. This study reveals that degradation of polyurethane could be initiated at a relatively low temperature of 40°C and low UV dosage. It was also found that the effect of heat is more pronounced than the effect of UV. The reaction mechanism of polyurethane degradation is fully in agreement with photoacoustic absorption spectra.
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