PVC LUBRICANT

PVC lubricants play a vital role in PVC processing, contributing to improved performance and quality. They can be classified into two main categories: PVC internal lubricants and PVC external lubricants.

External Lubricants

PVC external lubricants serve the purpose of creating a lubricating thin layer at the interface between the plastic melt and metal. These lubricants have limited compatibility with polymers, making them prone to migration from the melt to the exterior. As a result, they effectively reduce friction and enhance the overall processing of PVC.

Internal Lubricants

PVC internal lubricants are characterized by their strong compatibility with polymers. They work by reducing the cohesion between polymer molecules within the polymer matrix. This reduction in internal friction heat generation enhances the melt fluidity of the plastic melt, further improving the processing of PVC.