Paraffin wax in making PVC

The lubrication mechanism in PVC was studied using calcium stearate and paraffin wax lubricants. Based on the results of the differential thermal analyses, percent haze, microscopy, metal release, Brabender fusion, and extrusion studies .

Plasticizers are extensively utilized in various domains for improvising the fluidity or plasticity of materials especially made of plastic and PVC. Lubricants containing polar groups, which preferentially wet the metal surface in the presence of PVC, such as calcium stearate, are excellent metal lubricants.

The plasticizer makes polymer impact proof, thermal & light stable, flexible and strongly attached to resin. We provide a wide range of these additives applicable for different utilities.

 Non-polar lubricants which do not wet the metal surface, such as paraffin wax, allow PVC to stick to the metal surface.

These additives are widely used in wire jacketing, PVC cable, synthetic rubber, chlorinated rubber, nitrocellulose polystyrene, PVC resins, footwear, vinyl flooring, medical equipment, adhesives, perfumes, non-toxic food containers, automobile parts, tubes and rubber belts.

However, these lubricants work in combination with the metal wetting lubricants to make the lubricant layer more fluid, providing a better lubricating system than either lubricant alone. Lubrication between PVC primary particle flow units is similar to that at the metal surface with the polar PVC surface acting in a similar manner as the metal surface. We find the common classification of lubricants as internal or external to be deficient in explaining performance.