PSU Rod Polysulfone Round Bar

Find high-performance PSU rods at DoonX, available wholesale for your demanding applications. Our pricing is structured to reward larger purchases, ensuring you get the best value as you buy more. PSU rods are perfect for high-temperature and chemically challenging environments.

Polysulfone (PSU) is a high-performance thermoplastic known for its toughness and stability across a wide range of temperatures and environments. Below is a detailed breakdown of PSU’s properties across mechanical, thermal, chemical, and electrical domains:

Mechanical Properties:

• High Strength: PSU exhibits excellent mechanical strength, with a tensile strength of approximately 70 MPa, making it suitable for load-bearing applications.
• Toughness: It offers superior toughness and impact resistance, which remain consistent over a broad temperature range, reducing the risk of failure under stress.
• Dimensional Stability: PSU maintains good dimensional stability, with low creep under mechanical stress and a low coefficient of thermal expansion (around 55 x 10^-6/°C).

Thermal Properties:

• High Heat Resistance: PSU can withstand continuous exposure to temperatures up to 150°C and intermittent exposure up to 180°C, making it ideal for applications in demanding thermal environments.
• Thermal Stability: It exhibits excellent thermal stability, which is crucial for applications requiring prolonged exposure to high temperatures.

Chemical Properties:

• Chemical Resistance: PSU is resistant to acids, alkalis, and some organic solvents, but may swell or degrade with exposure to strong polar solvents like ketones.
• Hydrolysis Resistance: It shows exceptional resistance to hydrolysis, even at elevated temperatures, which makes it suitable for steam sterilization and medical applications.

Electrical Properties:

• Electrical Insulation: PSU is an excellent electrical insulator with a high dielectric strength, typically around 30 kV/mm, making it appropriate for electrical and electronic applications.
• Low Dielectric Constant: It has a relatively low dielectric constant (around 3.1 at 1 kHz), which is beneficial for applications requiring minimal electrical interference.

Additional Properties:

• Transparency: PSU is inherently transparent in the near-ultraviolet and visible ranges, with good optical clarity, making it suitable for sight glasses and medical devices where visibility is necessary.
• Flame Retardancy: It is inherently flame retardant with a UL 94 V-0 rating without the need for flame retardant additives, enhancing safety in applications prone to fire risk.

 

Polysulfone (PSU) rods are employed in a variety of demanding applications due to their robust properties. Here are some primary uses for PSU rods:

Medical Applications

• Sterilizable Instruments: PSU rods are used to manufacture medical and dental instruments because they can withstand repeated sterilization cycles without degrading. This includes surgical trays, handles for surgical tools, and components of devices that require high-temperature steam autoclaving.
• Fluid Handling Components: In medical devices, PSU’s excellent chemical resistance and stability under temperature fluctuations make it suitable for fluid handling components like connectors and valves in dialysis machines.

Electrical and Electronics Industry

• Insulating Components: PSU rods are ideal for electrical insulation applications due to their excellent dielectric properties. They are used in connectors, insulators, and components of circuit breakers and switchgear.
• High-Performance Connectors: The stability of PSU under thermal and electrical stress makes it a preferred material for making connectors and housings for electronic devices that must operate under harsh conditions.

Aerospace and Automotive

• Interior Components: In aerospace and automotive industries, PSU rods are used for interior components such as knobs, handles, and switches. Their flame retardancy and low smoke emission are critical for safety standards in these industries.
• Sensor Housings: PSU’s ability to withstand high temperatures and resist chemicals makes it suitable for housing sensors that monitor critical parameters in aerospace and automotive applications.

Industrial Applications

• Pump and Valve Parts: In chemical processing industries, PSU rods are machined into parts for pumps and valves. Their resistance to hot water and steam, as well as to many chemicals, ensures long service life in harsh environments.
• Bearing and Bushings: The excellent mechanical strength and stability of PSU allow it to be used in bearings and bushings that operate under high load and high temperature.

Food and Beverage Industry

• Food Processing Equipment: Due to its ability to be repeatedly sterilized and its resistance to common cleaning agents, PSU is used in components for food processing equipment, ensuring compliance with hygiene standards.