Abstract
The influence of irradiation on the thermal degradation of polypropylene (PP) was studied by performing thermogravimetric analysis at three constant heating rates and at a constant temperature. The results of the weight-loss thermogram and the rate of conversion during the degradation suggested that a small irradiation dose was enough to significantly enhance the pyrolysis activity. Kinetic parameters [k0(E) and f(E)] of the decomposition reaction were estimated by applying a simple distributed activation energy model (DAEM) proposed by Miura and Maki (Miura K, Maki T. Energy Fuels 1998;12:864). The estimated kinetic parameters showed unexpected dependence on the irradiation dose, which was explained partly based on the known mechanism of polymer degradation. The results suggested that the presented analysis method is sensitive enough to extract the change in rate parameters among slightly modified PPs. The validity of the estimated parameters was verified by comparing the predicted weight-loss thermograms with the experimental data obtained at different dynamic heating rates.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
