Process for regeneration of recycled polyvinylchloride

摘要

A process for reclamation of recycled polyvinylchloride comprises plasticization of recycled polyvinylchloride preliminarily washed of dirt and disintegrated, under constant stirring at a temperature of 60 - 80 DEG C, using a plasticizer containing not more than 11 wt.% of polyorganosiloxane, followed by modification of recycled polyvinylchloride at a temperature of 60 - 80 DEG C with a 4 - 12% solution of a structure-forming agent in stearin, whereupon the resultant modified polyvinylchloride is granulated at a temperature of 150 - 170 DEG C.