Polysulfone PSU

Polysulfone (PSU) is a high-performance engineering plastic produced by the polycondensation reaction of phenyl and bisphenol A units. Polysulfone has excellent heat resistance, its glass transition temperature is usually above 180°C, and it can operate stably in high temperature environments for a long time. At the same time, polysulfone has good corrosion resistance to many chemicals, including acids, alkalis, solvents, etc. Its mechanical properties are also very excellent, with high strength, stiffness and wear resistance, and it is suitable for manufacturing a variety of engineering parts. In addition, polysulfone has good electrical insulation properties and biocompatibility, making it widely used in medical devices, electronic devices and other fields. In the medical field, polysulfone can be used to manufacture medical devices that are resistant to high temperatures and chemical corrosion, such as sterilizing equipment, surgical instruments, etc. In the electronics field, polysulfone is often used to manufacture high-temperature electrical components, battery casings, etc. Overall, polysulfone is a versatile, high-performance plastic whose heat resistance, chemical resistance, and mechanical properties make it an ideal material for many engineering fields.

Physical and chemical properties of Polysulfone (PSU):

1.Density: PSU has a higher density, usually between 1.24 g/cm³ and 1.28 g/cm³.

2.Melting point: PSU has a relatively high melting point, generally between 220°C and 230°C.

3.Tensile Strength: PSU exhibits good tensile strength of 80 MPa to 100 MPa.

4.Modulus: PSU has a higher modulus, around 2,500 MPa to 3,000 MPa.

5.Coefficient of Thermal Expansion: PSU has a relatively low coefficient of thermal expansion, making it dimensionally stable as temperatures change.

6.Glass Transition Temperature: The glass transition temperature of PSU is typically between 190°C and 200°C.

7.Transparency: PSU exhibits good transparency and is suitable for the manufacture of some optical and transparent parts.

8.Chemical stability: PSU has good stability to a variety of chemical substances and is acid and alkali resistant.

9.Electrical insulation: PSU is an excellent electrical insulation material and is suitable for electronic and electrical fields.

10.Weather resistance: PSU has certain weather resistance and is not susceptible to ultraviolet rays and climate change.

11.Processability: PSU can manufacture parts of various shapes through various processing methods such as injection molding and extrusion.

12.Hygroscopicity: PSU has low hygroscopicity, maintains stable performance, and is not easily deformed by moisture.

Key manufacturing steps:

1.Raw material preparation: Collect main raw materials, including diphenyl ether, diphenyl copper oxide, chlorosulfonic acid, etc.

2.Polymerization: The raw materials undergo a series of polymerization reactions, usually using solution polymerization or melt polymerization, to form the polymer chain structure of Polysulfone.

3.Solvent treatment: After the polymerization reaction is completed, the product is separated from the reaction mixture through solvent treatment to obtain polymerized Polysulfone.

4.Granulation or extrusion: The polymerized Polysulfone is formed into pellets or sheets through processes such as granulation or extrusion for subsequent processing into products of various shapes.

5.Processing and molding: Polysulfone is made into parts or products of the required shape using various processing methods, such as injection molding, extrusion, calendering, etc.

6.Post-processing: Necessary post-processing is performed on the processed parts, such as heat treatment, cooling, removal of residual solvents, etc., to ensure the quality of the final product.

Application areas：

1.Medical devices: Widely used in the medical industry to manufacture high-temperature, durable, chemical-resistant medical devices and transparent parts.

2.Automotive Industry: Used in manufacturing auto parts such as water tanks, sensors, engine parts due to its high temperature stability and mechanical strength.

3.Chemical treatment: Used to manufacture corrosion-resistant pipes, valves, pumps, etc., suitable for chemical treatment fields.

4.Industrial manufacturing: Widely used in manufacturing high-temperature, wear-resistant parts and used in industrial equipment manufacturing.

5.Textile industry: Used in the manufacture of high-performance fibers, such as high-temperature and chemical-resistant textiles.

6.Outdoor and Sports Equipment: Used in outdoor equipment, sports equipment due to its weather resistance and mechanical properties.

7.Optical devices: Suitable for manufacturing transparent parts, optical lenses and other optical devices.

FAQ:

What material is polysulfone?

Polysulfone (PSU) is a high-performance engineering plastic with excellent heat resistance, chemical resistance and mechanical properties.

What are the main properties of polysulfone?

The main properties of polysulfone include excellent thermal resistance, chemical resistance, mechanical properties, electrical insulation properties and biocompatibility.

What is the glass transition temperature of polysulfone?

The glass transition temperature of polysulfone is usually above 180°C.

What are the application fields of polysulfone?

Polysulfone is widely used in medical devices, automotive parts, aerospace components, electronic devices and other fields.

How does polysulfone react to chemicals?

Polysulfone has good corrosion resistance to many chemicals, including acids, alkalis, solvents, etc.

What is the role of polysulfone in medical devices?

Polysulfone is often used in medical devices to make high temperature and chemical resistant devices, such as sterilizing equipment, surgical instruments, etc.

What are the applications of polysulfone in the electronics field?

In the electronics field, polysulfone is often used to manufacture high-temperature electrical components, battery casings, etc.

What is the future development trend of polysulfone?

With the development of technology and the increase in application demand, polysulfone is expected to play a role in a wider range of fields, and more innovative applications and improvements may appear in the future.