Synthesis Technology of Silica Aerogels/Polystyrene Core-Shell Composite Materials
In order to obtain super aerogels heat insulating composite materials with silane coupling agent on the in-situ surface treatment. The core-shell structure composite materials have been prepared by dispersion polymerization process of polystyrene grafted on the SiO2 particles. By TEM on these samples the impact of the system components initiator polymerization parameters and dispersion process was discussed. The results showed that the system component of the greatest impact on conversion rate is the ratio of aerogels /St ,the optimum reaction temperature is 75 °C.With organic initiator KPS as initiator after a unique ultrasound technique to obtain the core-shell composite materials structure which coating is 70%.
G. Q. Geng et al., "Synthesis Technology of Silica Aerogels/Polystyrene Core-Shell Composite Materials", Advanced Materials Research, Vols. 168-170, pp. 1833-1836, 2011