POLYCAPROLACTONE/POLYVINYLCHLORIDE POLYMER AND BIODEGRADABLE FILM AND SHEET USING THE SAME

摘要

PURPOSE: Provided are a polycaprolactone(PCL)/polyvinylchloride(PVC) polymer and biodegradable film and sheet using the polymer, which have increased tensile strength than that of polyvinyl chloride and can be used for mulching films for agriculture, vinyl bags for waste food, and PVC films and sheets. CONSTITUTION: The PCL/PVC polymer comprises 87-99.99wt% of the PVC and 0.01-13wt% of the PCL. And the biodegradable film and sheet are produced by a process comprising the steps of: blending PVC, PCL, a lubricant, and a heat-stabilizer in an extruder at 80-250deg.C for 0.5-30 minutes; cooling the blended PCL/PVC at 10-25deg.C; forming pellets having a particle diameter of 2mm; molding the pellets by using a calender, a blow mold, a press mold, and etc. and then cooling at 10-25deg.C.