پديد آورندگان :
Wanwanichai Parinya نويسنده , Junkasem Jirawut نويسنده , Saimanecwong Babeeya نويسنده , Mahasan Ratana نويسنده , Tantivess Pitee نويسنده , Magaraphan Ratanawan نويسنده , Vanichvarakij Yothin نويسنده , Petiraksakul Pinsupha نويسنده , Supaphol Pitt نويسنده
چكيده لاتين :
One-step and two-step isothermal sheet-casting processes for producing poly(methyl methacrylate) (PMMA) sheets, based primarily on water and waterair systems, were studied and compared. The main objectives were: (1) to assess the optimal production time for each system in producing 3-mm thick PMMA sheets at various process conditions and (2) to assess and compare the quality of the PMMA sheets obtained in terms of their mechanical integrity. It was found that the mechanical integrity of the PMMA sheets prepared by the two-step (water-air) isothermal process was much better than those prepared by the one-step (water) isothermal process, a direct result of the much higher ultimate percentage of monomer conversion.
