Shakoori - Research Center for Polymeric Materials, Sahand University of Technology,Tabriz, Iran
Rezaei - Research Center for Polymeric Materials, Sahand University of Technology,Tabriz, Iran
Abbasi - Research Center for Polymeric Materials, Sahand University of Technology,Tabriz, Iran
Esmaeilnezhad - Research Center for Polymeric Materials, Sahand University of Technology,Tabriz, Iran

In this study, the drying kinetics and thermal properties of three latexes (pure acrylic polymer latex(MP 36), styrene-acrylic copolymer latex (MS 28) and PVA latex ) have been compared. For Thermal investigation the Thermal Gravimetric/Differential Thermal Analysis (TG/DTA) method has been used. The results indicate that all the samples have approximately the same degradation temperature like expandable polystyrene (EPS) and styrene-methylmetacrylate (St-MMA) lost foams. Diagrams of drying process of latexes show three different stages. The results show that drying time has an inverse relation with temperature. In fact drying time decreases with increasing of the temperature. The latexes have different cumulative water loss because of different water diffusion coefficients.

lost foam; latex; drying kinetics; thermal properties