A method of coating expandable graphite on expandable polystyrene resin particles and a method of coating the expanded resin particles

摘要

The present invention oxidizes the surface of expandable polystyrene (EPS) resin particles with ozone to modify the hydrophobic EPS particles to hydrophilic, and then the modified EPS at 1 to 30 rpm in the presence of a polar organic solvent for 1 to 5 minutes. The present invention relates to a method for producing expandable polystyrene resin particles coated with expanded graphite in which expanded graphite is added to the solvent and coated with paraffin while stirring.