Abstract
The poly(vinyl chloride) based nanocomposites with 3.0% weight content of the photo-active zinc oxide (ZnO) nanoparticles or the photo-inert calcium carbonate (CaCO3) nanoparticles was prepared by the solution mixing method, respectively. Their photo-oxidative degradation under ultraviolet irradiation (365 nm) at room temperature were compared with the pure poly(vinyl chloride) via Fourier transform infrared spectroscopy, Thermogravimetric analysis and x-ray photoelectron spectroscopy analyses. The results showed that the photo-inert calcium carbonate (CaCO3) nanoparticles hampered the photo-degradation of poly(vinyl chloride), whereas the photoactive zinc oxide (ZnO) nanoparticles accelerated the photodegradation of poly(vinyl chloride). Furthermore, the ZnO nanoparticles also favored the crosslinking reaction of the dehydrochlorinated poly(vinyl chloride).
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