10 فروردین 1403
داود جهاني

داود جهانی

مرتبه علمی: استادیار
نشانی: بناب - دانشگاه بناب
تحصیلات: دکترای تخصصی / مهندسی مکانیک
تلفن: 04137745000
دانشکده: دانشکده فنی و مهندسی
گروه: گروه مهندسی مکانیک

مشخصات پژوهش

عنوان
Effect of temperature and composition on the cell morphology and the density of polystyrene / polymethyl methacrylate blend foams
نوع پژوهش مقاله ارائه شده
کلیدواژه‌ها
Nano particle; Foam; Polystyrene;
پژوهشگران داود جهانی (نفر اول)، امین نظری (نفر دوم)، حسن منصوری (نفر سوم)

چکیده

— In this paper, the foaming process and cell morphology of polystyrene(PS)/ polymethyl methacrylate(PMMA) blend foams were studied. PS / PMMA blends were prepared in different compositions with /without calcium carbonate. In order to investigate the foaming process, the polymer plates samples, 200 μm in thick, were saturated with normal pentane gas and foaming process was studied. The results show that with increasing of the temperature, the saturation process performs faster. Also with the increase of PMMA content in the blend, the gas penetration into the polymer and foam density decreases. Addition of nanoparticles in the blend resulted on increasing of the nucleation rate and void density.