Polypropylene wax is commonly used as an additive in the production of polypropylene filament to enhance various properties. When used in high viscosity polypropylene filament, polypropylene wax serves several purposes:

Reducing Friction

Polypropylene wax can reduce the coefficient of friction, allowing for smoother extrusion and processing of the filament.

Improving Processability

High viscosity polypropylene can be difficult to process due to its higher melt viscosity. Polypropylene wax helps in reducing the melt viscosity, thus improving processability during extrusion.

Enhancing Surface Finish

Polypropylene wax can improve the surface finish of the filament, making it smoother and more aesthetically pleasing.

Preventing Blocking

In filament production and extrusion processes, blocking or sticking of the material can occur. Polypropylene wax acts as a slip agent, reducing the tendency of the filament to stick to processing equipment.

Increasing Flexibility

Polypropylene wax can increase the flexibility of the filament, making it more suitable for certain applications where flexibility is desired.

Controlling Shrinkage

By modifying the crystallization behaviour of polypropylene, polypropylene wax can help in controlling shrinkage during processing and cooling of the filament.

Reducing Energy Consumption

Due to its lubricating properties, polypropylene wax can reduce energy consumption during extrusion processes by lowering the torque required for filament production.