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1. Main Functions
Internal lubricant: Reduces intra-molecular friction in the plastic melt, improves flowability, and reduces torque and energy consumption.
External lubricant: Reduces friction between the melt and the surfaces of metal equipment (barrels, screws, moulds), prevents adhesion, and improves demoulding performance.
Dispersant: Helps pigments and fillers (such as calcium carbonate and talc) disperse evenly within the resin, preventing agglomeration.
2. Specific Applications
Injection Moulding: Improves melt flow index, reduces injection pressure, minimises mould fouling, enhances demoulding efficiency, and produces smoother product surfaces.
Extrusion: Reduces extruder current, minimises material build-up at the die, and improves output and dimensional stability.
Pelletising: In masterbatches, aids pigment wetting and dispersion, and reduces filtration pressure drop.
