PVC is versatile, cost effective and one of the leading thermoplastics consumed worldwide. The use of PVC for applications ranging from the very rigid to highly flexible is unique and unchallenged.
One of the limitations of PVC resin is the lack of thermal stability at normal processing temperature and conditions. The main decomposition mechanism PVC undergoes at elevated temperatures are dehydrochlorination, auto oxidation and mechano-chemical chain scission.
Development of various heat stabilizers to suit different processing conditions and temperatures has promoted the use of PVC in the wide range of applications.
Processing of PVC while maintaining its functional properties is only possible by addition of specific heat stabilizers, which retard degradation by preventive and curative stabilizing function.