مشخصات پژوهش

عنوان	Non-isothermal degradation kinetics of MMA-St copolymer and EPS lost foams
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Lost foam MMA-St copolymer EPS Degradation kinetics
چکیده	Methylmethacrylate-styrene (MMA-St) random copolymerwas synthesized by suspension copolymerization. The thermal degradation of MMA-St copolymer and EPS lost foams was studied by non-isothermal thermal gravimetric analysis under nitrogen purge. Thermal decomposition behavior of MMA-St copolymer lost foam was examined and compared with EPS. It was found that EPS foam starts to decompose at higher temperatures than MMA-St copolymer foam in all heating rates. The apparent activation energy was calculated by the Flynn-Wall-Ozawa method. It has been concluded that the model fitting methods unable to reveal the complexity of the pyrolysis process and the model-free methods can be suggested as a reliable way of determining the kinetic parameters.
پژوهشگران	یحیی بهلولی (نفر پنجم)، علی چرچی (نفر چهارم)، فرهنگ عباسی (نفر سوم)، مصطفی رضایی (نفر دوم)، حمید رضا عظیمی زنوزی (نفر اول)