Miscibility of pvc with chlorinated pe and chlorinated pvc

摘要

Miscibility of PVC with chlorinated PE and chlorinated PVC was reviewed.The miscible region of chlorine content ranged from 44 wt% to 65 wt%,which was not symmetric to the chlorine content of PVC,56.7 wt%.Two group contribution methods were useed to calculated solubility parameters of polymers.Teh results of solubility parameters shwed a more symmetric missible region with respect to the value of PVC.However,the ranges of miscibilitly were different.It was 2.3 (J/cm~3)~0.5 in a three-ddimensional methos and was 1.5 (J/cm~3)~0.5 in the Fedors method.