Properties of thermoshrinked films based on polyvinylchloride

Abstract

Dependence of thermal shrinkage of films based on polyvinylchloride (PVC) on temperature is established. The technique of determining PVC film shrinkage speed within a wide interval of temperatures is developed. The effect of the content of the plasticizer and heat treatment on the physicomechanical parameters of PVC films is shown. The influence of the duration of mixing the components of the mix on physico-mechanical parameters of PVC films is established. Linear equations of regression of temperature rise kinetics in the course of mixing the ingredients in a high-speed agitator and those of subsequent kinetics of cooling the mix at mixing are obtained.