FLAME-RETARDED THERMAL INSULATING FOAM OF CHEMICAL CROSS-LINKED POLYVINYL CHLORIDE BASED AND MANUFACTURING METHOD OF THE SAME

摘要

The present invention relates to a flame-retardant thermal insulating foam based on chemical cross-linked polyvinyl chloride and a manufacturing method thereof. In particular, the flame-retardant thermal insulating foam based on chemical cross-linked polyvinyl chloride is molded by extruding and foaming a base composition which includes: a resin mixture including 30-70 parts by weight of a polyvinyl chloride (PVC) resin and 30 to 70 parts by weight of a chlorinated polyethylene (CPE) resin; 10-100 parts by weight of chlorinated paraffin oil (CPO) with respect to 100 parts by weight of the resin mixture; and 1-10 parts by weigh of a cross-linking agent. The flame-retardant thermal insulating foam based on chemical cross-linked polyvinyl chloride includes the polyvinyl chloride (PVC) resin and the chlorinated polyethylene (CPE) resin having excellent flame-retardant properties and thus can be used for an insulation material for building construction. Also, the flame-retardant thermal insulating foam based on chemical cross-linked polyvinyl chloride includes the chlorinated polyethylene (CPE) resin which is highly mixable with the polyvinyl chloride (PVC) resin. Therefore, the flame-retardant thermal insulating foam based on chemical cross-linked polyvinyl chloride has an increased rate of the cross-link, is capable of foaming pores in a very large numbers, and thus can increase insulation properties.