The roles of PTFE micropowder in engineering plastics mainly include: enhancing wear resistance, reducing the friction coefficient, improving self-lubricity, lowering noise levels, and extending service life.
Enhancing Wear Resistance and Reducing the Friction Coefficient: PTFE micropowder can form a lubricating film on the surface of components during friction, effectively reducing friction and wear. Typically, adding 15% PTFE to amorphous plastics and 20% PTFE to crystalline plastics yields the optimal wear-resistant effect.
Improving Self-Lubricity: PTFE micropowder significantly enhances the self-lubricity of engineering plastics, reducing the friction coefficient and noise levels. For instance, incorporating 2-20% PTFE micropowder into engineering plastics such as polyamide (PA), polyoxymethylene (POM), polycarbonate (PC), and polyphenylene sulfide (PPS) forms a polytetrafluoroethylene dry film between plastic components and mating surfaces, protecting the plastic from wear and drastically reducing plastic abrasion.
Lowering Noise Levels: PTFE micropowder reduces noise generated during friction, making it suitable for applications requiring low-noise environments.
Extending Service Life: By minimizing friction and wear, PTFE micropowder significantly extends the service life of engineering plastic products, particularly under high-load and harsh operating conditions.
Wide Range of Applications: PTFE micropowder is widely used in engineering plastics such as polyoxymethylene (POM), nylon (PA), polycarbonate (PC), polyether ether ketone (PEEK), polyester (PET), and polyphenylene sulfide (PPS). It is suitable for manufacturing parts with high wear resistance requirements, such as gears, bearings, and pulleys.
The recommended addition ratio of PTFE micropowder in engineering plastics typically ranges from approximately 5% to 20% (by weight). In cases with specific requirements, the addition ratio can even reach 40%-50%. Please adhere to actual application requirements.