What are the types of processing aids for PVC?

Processing aids for PVC include a variety of additives that enhance the processing characteristics of the polymer. Common types include lubricants, which reduce friction during processing; impact modifiers, which improve toughness; and stabilizers, which prevent degradation during heat exposure. Additionally, processing aids may also include plasticizers to increase flexibility and flow modifiers to enhance melt processing. These aids help optimize the manufacturing process and improve the final properties of PVC products.