Abstract
γ-Aminopropyltriethoxysilane was used to modify nano-size silica particles (A-Silica), and silanation was studied by 29Si and 13C CP MAS NMR. 3 wt % original silica (Silica) and modified silica (A-Silica) particles were blended with poly(ethylene-co-glycidyl mathacrylate) (PEGMA) in a twin screw extruder. The dispersibility of these nanocomposites was examined by transmission electron microscopy. The equilibrium melting temperature was estimated by linear and nonlinear Hoffman–Weeks relations, and the kinetics of isothermal crystallization were described by Avrami, Tobin, Malkin, and Urbanovici–Segal models. The results showed that PEGMA containing the modified nano-silica gave the highest equilibrium melting temperature and slowest isothermal crystallization rate. The above four kinetic models predicted the same ranking order in crystallization rate: PEGMA > PEGMA/Silica > PEGMA/A-Silica.
Sign-in/Register to access full text options 
Free) 
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 call
