POLYSULFONE (PSU)
Material Information
Polysulfone is an amorphous high performance thermoplastic that offers excellent mechanical and electrical properties, as well as chemical resistance to acidic and salt solutions. It also has good resistance to detergents. These properties remain constant over a relatively broad temperature range (-150º F to 300º F). Polysulfone is a rigid material that can operate in an autoclave environment. Its excellent hydrolysis resistance allows it to be continuously used in hot water and steam. It also has excellent radiation stability and low ionic impurity levels. All together, Polysulfone’s properties make it ideal for use in pharmaceutical and medical applications, food service equipment, semiconductor processing, and electronic equipment. It has low flammability and smoke emission and is FDA, NSF, 3A-Dairy, and USP Class VI compliant in a food grade. It is available in a transparent amber color in the form of rod and sheet.
Application
- Pharmaceutical
- Medical
- Food service equipment
- Semi-conductor water processing
- Electronic equipment
- Ultra pure water systems
- Chip testing equipment
Properties
- Autoclave resistant
- Excellent hydrolytic stability
- High strength and rigidity
- Excellent electrical properties
- Good chemical resistance
- Superior creep resistance
- FDA, NSF, 3A-Dairy, and USP Class VI compliant
- High temperature performance
- Flame retardant
Physical |
Astm Test Method |
Polysulfone (PSU) |
| Density (lb/in^3) | D792 | 0.045 |
| Specific Gravity | D792 | 1.24 |
| Water Absorption @ 24 hours (%) | D570 | 0.3 |
Mechanical |
||
| Tensile Strength (PSI) | D638 | 10,200 |
| Tensile Modulus (PSI) | D638 | 360,000 |
| Tensile Elongation at Yield (%) | D638 | 30 |
| Flexural Strength (PSI) | D790 | 15,000 |
| Flexural Modulus (PSI) | D790 | 400,000 |
| Izod Impact (Notched), ft-lb/in | D256 | 1.3 |
| Rockwell Hardness |
D785 | M82 / R128 |
Thermal |
||
| Coefficient of Thermal Expansion, 10^-5/°F |
D696 | 3.1 |
| Heat Deflection Temperature 264 psi, ºF | D648 | 340 |
| Melting Point, °F | D3418 | 374 |
| Continous Service Temp (Operating), °F | – | 300 |
| Flammability Rating | UL94 | HB |
Electrical |
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| Dielectric Strength, Short Term, (Volts/Mil) @ .125″ Thick |
D149 | 425 |
| Volume Resistivity (ohm-cm) @ 50% RH | D257 | 5.0 X 10^16 |
| Dielectric Constant at 1 kHz | D150 | 3.14 |
| Dissipation Factor at 1 kHz | D150 | 0.0008 |
NOTE:
The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.