EXPANDABLE POLYSTYRENE BEAD INCLUDING PLATE-SHAPED TALC COATED BY RESIN AND PRODUCTION METHOD THEREOF

摘要

Disclosed herein is a method for preparing expandable polystyrene beads, which comprises: mixing platy talc with resin at high speed to coat the platy talc with the resin; and coating the resin-ooated platy talc on polystyrene beads or adding the resin-coated platy talc to a styrene polymerization process for preparing polystyrene beads. The expandable polystyrene beads prepared according to the disclosed method have excellent thermal insulation properties, because either the platy talc penetrated into the polystyrene beads or the platy talc coated on the outside of the polystyrene beads reflects or absorbs incident infrared radiation, thus achieving low thermal conductivity.