Method for producing expanded polystyrene with improved properties containing a mineral nanofiller

Abstract

The subject of the application is a foamed polystyrene with improved properties containing a mineral nanofiller, which is characterized in that it is obtained according to the method described below and the mineral nanofiller is used in an amount of 5% to 50% by weight relative to the styrene. Preferably, the mineral nanofiller is halloysite and / or montmorillonite and / or bentonite. The subject of the application is also a method for producing foamed polystyrene with improved properties containing a mineral nanofiller, which is performed by suspension polymerization of styrene in the presence of a protective colloid, an initiator, and a foaming agent, characterized in that during the suspension polymerization of styrene, a mineral nanofiller is added to the styrene phase or the aqueous phase in an amount of 5% to 50% by weight relative to the styrene. Preferably, halloysite and / or montmorillonite and / or bentonite are used as the mineral nanofiller. Preferably, benzoyl peroxide is used as the initiator.Preferably, heptane and / or hexane or pentane is used as the foaming agent. Preferably, polyvinyl alcohol is used as the protective colloid.