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- W2376752280 abstract "The thermal and photo-degradability of PE/CaO films were investigated by thermogravimetric analysis(TG) and artificial accelerated aging tests to simulate incineration and solar irradiation,respectively. The kinetic parameters of PE films with various CaO contents were calculated both by the Kissinger and the Ozawa methods. The results show that the apparent activation energies calculated from the two methods are comparable. According to the Crane equation,the thermal-degradation of PE or PE/CaO film has been found to follow first-order reaction kinetics. The apparent activation energies(by Kissinger equation) of PE/CaO films with CaO contents of 10%,20% and 25% are 220.4,197.6 and 217.8 kJ·mol-1,respectively. The values are lower than that of PE film(224.0 kJ·mol-1) ,suggesting that the thermal-degradability of PE/CaO film is better than that of pure PE film. It is clear that hydroperoxides and free radicals are formed when PE/CaO film is exposed to UV radiation. The free radicals lead to Norrish type II chain-breaking reactions,primarily. The chain scission process produces more free radicals,which result in acceleration of the degradation." @default.
- W2376752280 created "2016-06-24" @default.
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- W2376752280 date "2009-01-01" @default.
- W2376752280 modified "2023-09-23" @default.
- W2376752280 title "Thermal and photo-degradability of PE/CaO films" @default.
- W2376752280 hasPublicationYear "2009" @default.
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