Advantages Of Polyphenylene Sulfide PPS For Wear Resistance

As a special engineering material, polyphenylene sulfide (PPS) is widely used in the automotive, machinery, aviation, aerospace, medical and other industries due to its excellent mechanical properties, thermal properties, electrochemical properties, chemical resistance, radiation resistance, dimensional stability, electrical properties and flame retardancy. However, the wear resistance of PPS itself may be difficult to meet the requirements of the product in some cases, so it is often necessary to add wear-resistant additives for modification. Tetrafluoroethylene (PTFE) powder, as a wear-resistant additive, has significant advantages in the wear-resistant modification of PPS. The following is a detailed description of these advantages:

1. Reduce wear rate

PTFE powder is well known for its excellent wear resistance. When PTFE powder is blended with PPS plastic as a solid lubricant, the wear rate of PPS composite materials can be greatly reduced. PTFE has an extremely low friction coefficient of only 0.02, and is known as a small internal lubricant. Under the action of shear force, PTFE tiny particles can produce a thin film on the surface of PPS plastic, which plays a lubricating role, thereby reducing the friction between PPS plastic and metal or plastic surfaces

2. Improve wear resistance

Adding an appropriate amount of PTFE powder to PPS plastic can significantly improve the wear resistance of PPS. Especially under high speed and high load conditions, the PTFE/silicone lubrication system uses the migration of silicone to directly lubricate as a supplement to PTFE lubrication, which further improves the wear resistance compared to PTFE lubrication alone. This improvement in wear resistance allows PPS plastic to maintain a longer service life even in harsher working environments.

3. Maintain stable performance

PTFE powder not only has excellent wear resistance, but also has high temperature resistance, low temperature resistance, corrosion resistance, insulation performance, etc. These properties enable PTFE powder to maintain stable performance in complex and changeable working environments. For example, in high temperature environments, PTFE powder can maintain a low friction coefficient and wear resistance, avoiding friction and wear problems caused by thermal expansion. In low temperature environments, PTFE powder has good toughness and impact resistance, and can resist damage caused by low temperature embrittlement.

4. Wide range of application fields

Due to the significant advantages of PTFE powder in PPS wear-resistant modification, PPS plastics have been widely used in many fields. For example, in the field of mechanical engineering, PPS plastics are often used to manufacture wear-resistant coatings and sealing materials; in the chemical industry, PPS plastics are used to manufacture corrosion-resistant pipes and valves; in aerospace, automobile manufacturing, electronics and electrical fields, PPS plastics also play an important role.

In summary, as a wear-resistant additive for polyphenylene sulfide (PPS), PTFE powder has the advantages of reducing wear rate, improving wear resistance, maintaining stable performance and a wide range of applications. These advantages enable PPS plastics to perform well in a wider range of application scenarios, meeting the needs of different industries for high-performance materials.