Introduction
What Is PVC Compound ?
PVC is with low thermal stability and high melt viscosity. Therefore, it is combined with a number of additives to vary properties to suit different end-user applications
PVC formulation is key to processing success. This review looks at the different types available, their uses and new developments. The main groups of additives are heat stabilizers, plasticizers, impact modifiers, process aids, lubricant, fillers, flame retardants, pigments, blowing agents, biocides, viscosity modifiers, antistatic agents, antioxidants, UV absorbers, antifogging agents and bonding agents.
Formulations changes are being driven by legislation banning heavy metals and possible health risks from additives such as phthalate plasticizers
PVC compounding methods are considered here. There are many different ways of processing PVC: extrusion, calendaring, injection molding, and extrusion/stretch blow molding
 
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