Highly Porous Granulated Corundum Filler of Alumina-Foam Polystyrene Mixture. Parts 1 and 2

Abstract

Methods available for preparing porous corundum filler have a number of marked disadvantages: significant complexity, low productivity, high energy content, and narrow fraction composition. The most promising method for preparing porous corundum fillers of three types (hollow, porous, and keramzit type) is granulation of a molding mixture based on foamed bead polystyrene (screenings). By varying granulation parameters of alumina-foam polystyrene it is possible to control end product properties.