OPE wax used for PVC film processing

Oxidized polyethylene wax serves as a key multifunctional additive in PVC
film processing, primarily employed to optimise processing performance and
enhance product quality.
Principal Functions and Effects
Lubrication and Processing Performance Enhancement: OPE wax balances internal
and external lubrication, reducing friction between PVC melt and equipment,
minimising plasticisation delays, and increasing extrusion speed and
production efficiency. Its polar groups also enhance compatibility with PVC
molecular chains, preventing processing issues caused by excessive external
lubrication.
‌Improved Dispersibility and Stability‌: In highly filled formulations, OPE wax
adsorbs fillers and pigments, preventing agglomeration and enhancing
dispersion efficiency to ensure uniform product performance.‌ Simultaneously,
it synergises with thermal stabilisers by absorbing decomposed HCl, extending
the processing window and reducing PVC thermal degradation.‌