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Advantages:
1. Excellent high-temperature resistance:
High-temperature stability: The long-term service temperature can reach 200 to 220℃, and the short-term temperature can exceed 260℃. The heat distortion temperature (HDT) exceeds 260℃ (about 110℃ for the unreinforced model, significantly improved after reinforcement).
Flame retardancy: The UL94 flame retardant grade reaches V-0 (no flame retardants need to be added), and the limiting oxygen index (LOI) is ≥47%, making it a difficult-to-burn material.
2. Excellent chemical stability:
Corrosion resistance: It has extremely strong resistance to most organic solvents (such as alcohols, ketones, hydrocarbons), inorganic acids, alkalis, salts, etc., second only to polytetrafluoroethylene (PTFE).
Hydrolytic stability: It can maintain performance in high-temperature and high-pressure steam or damp heat environments, making it suitable for the chemical and energy industries.
3. Excellent mechanical properties:
High rigidity: After reinforcement with glass fiber (GF), the tensile strength and flexural modulus are significantly enhanced (for example, the tensile strength of the 40% GF reinforced model can reach 150-200 MPa).
Creep resistance: Small deformation under long-term load, suitable for precision structural components.
4. Excellent dimensional stability:
Low hygroscopicity: The water absorption rate is only 0.02 to 0.05%, and the impact of humidity changes on dimensions is minimal.
Low coefficient of thermal expansion: Close to that of metals, suitable for use with metal inserts.
5. Electrical performance:
High-frequency insulation: Stable dielectric constant, good arc resistance, suitable for high-temperature electronic components (such as sockets, coil bobbings).
Arc resistance: The arc resistance time can reach over 100 seconds (UL746A).
6. Processing performance:
Easy injection molding & extrusion: Melting point approximately 280℃, good fluidity, suitable for processing thin-walled or complex parts.
Solderability: Can withstand reflow soldering temperatures (such as in SMT processes).
7. Other features:
Wear resistance: Low coefficient of friction, suitable for moving parts such as bearings and gears.
Radiation resistance: Resistant to gamma rays and X-rays, used in the nuclear industry or medical equipment.
Application:
1.Automotive turbocharger components:
Modified PPS is used to manufacture the intake pipes of turbochargers and the exhaust gas recirculation (EGR) valves. Its high-temperature resistance (above 220°C) and lightweight properties can replace metals. The 40% glass fiber reinforced (GF40) modification provides high strength and meets the demanding requirements of engine operation
2. Household appliance heat-resistant structural components:
The pressure valve of the rice cooker and the hot air duct of the air fryer use mineral-filled PPS to ensure dimensional stability and food safety at high temperatures. Flame-retardant modification (UL94 V0) makes it suitable for fire-resistant components such as the electromagnetic cooker coil bracket.
3. Chemical corrosion-resistant pumps and valves:
The acid-resistant pump housings and valve sealing rings made of modified PPS can resist strong acid and alkali corrosion and have a longer lifespan than stainless steel. The carbon fiber reinforced (CF) model is used for electroplating fixtures and combines lightweight and resistance to electrolyte corrosion properties.
4. Lithium battery insulation components:
The battery module brackets of new energy vehicles and the insulation shells of charging piles use flame-retardant PPS (V0 grade) to prevent high-temperature short circuits and fires. The glass fiber reinforced model provides high rigidity and ensures the structural stability of the battery pack.
Advantages:
1. Excellent high-temperature resistance:
High-temperature stability: The long-term service temperature can reach 200 to 220℃, and the short-term temperature can exceed 260℃. The heat distortion temperature (HDT) exceeds 260℃ (about 110℃ for the unreinforced model, significantly improved after reinforcement).
Flame retardancy: The UL94 flame retardant grade reaches V-0 (no flame retardants need to be added), and the limiting oxygen index (LOI) is ≥47%, making it a difficult-to-burn material.
2. Excellent chemical stability:
Corrosion resistance: It has extremely strong resistance to most organic solvents (such as alcohols, ketones, hydrocarbons), inorganic acids, alkalis, salts, etc., second only to polytetrafluoroethylene (PTFE).
Hydrolytic stability: It can maintain performance in high-temperature and high-pressure steam or damp heat environments, making it suitable for the chemical and energy industries.
3. Excellent mechanical properties:
High rigidity: After reinforcement with glass fiber (GF), the tensile strength and flexural modulus are significantly enhanced (for example, the tensile strength of the 40% GF reinforced model can reach 150-200 MPa).
Creep resistance: Small deformation under long-term load, suitable for precision structural components.
4. Excellent dimensional stability:
Low hygroscopicity: The water absorption rate is only 0.02 to 0.05%, and the impact of humidity changes on dimensions is minimal.
Low coefficient of thermal expansion: Close to that of metals, suitable for use with metal inserts.
5. Electrical performance:
High-frequency insulation: Stable dielectric constant, good arc resistance, suitable for high-temperature electronic components (such as sockets, coil bobbings).
Arc resistance: The arc resistance time can reach over 100 seconds (UL746A).
6. Processing performance:
Easy injection molding & extrusion: Melting point approximately 280℃, good fluidity, suitable for processing thin-walled or complex parts.
Solderability: Can withstand reflow soldering temperatures (such as in SMT processes).
7. Other features:
Wear resistance: Low coefficient of friction, suitable for moving parts such as bearings and gears.
Radiation resistance: Resistant to gamma rays and X-rays, used in the nuclear industry or medical equipment.
Application:
1.Automotive turbocharger components:
Modified PPS is used to manufacture the intake pipes of turbochargers and the exhaust gas recirculation (EGR) valves. Its high-temperature resistance (above 220°C) and lightweight properties can replace metals. The 40% glass fiber reinforced (GF40) modification provides high strength and meets the demanding requirements of engine operation
2. Household appliance heat-resistant structural components:
The pressure valve of the rice cooker and the hot air duct of the air fryer use mineral-filled PPS to ensure dimensional stability and food safety at high temperatures. Flame-retardant modification (UL94 V0) makes it suitable for fire-resistant components such as the electromagnetic cooker coil bracket.
3. Chemical corrosion-resistant pumps and valves:
The acid-resistant pump housings and valve sealing rings made of modified PPS can resist strong acid and alkali corrosion and have a longer lifespan than stainless steel. The carbon fiber reinforced (CF) model is used for electroplating fixtures and combines lightweight and resistance to electrolyte corrosion properties.
4. Lithium battery insulation components:
The battery module brackets of new energy vehicles and the insulation shells of charging piles use flame-retardant PPS (V0 grade) to prevent high-temperature short circuits and fires. The glass fiber reinforced model provides high rigidity and ensures the structural stability of the battery pack.
