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As an external lubricant, Fischer-Tropsch wax functions through the following mechanisms:
Migration and spreading: During PVC plasticization, Fischer-Tropsch wax migrates from the PVC mixture interior to the melt surface.
Formation of a barrier layer: A thin, uniform lubricating film forms between the melt surface and the metal surfaces of processing equipment.
Reduced Adhesion and Friction: This lubricating film effectively lowers friction and adhesion between the PVC melt and metal equipment, achieving lubrication.
Fischer-Tropsch wax is widely used in various rigid and flexible PVC products:
Rigid PVC: This is the primary application area for Fischer-Tropsch wax.
Window and Door Profiles: Provides excellent surface finish, facilitates extrusion, and reduces energy consumption.
Pipes and fittings: Ensures stable extrusion and smooth inner/outer walls.
Sheets and films: Such as transparent PVC sheets and advertising boards, maintaining lubrication without compromising transparency.
Injection-molded products: Excellent demolding performance.
Flexible PVC:
Used as a lubricant and surface modifier in wire and cable compounds, artificial leather, flooring, etc.
