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Formula: PSu
Form: Granule
Material: Polysulfone (PSU)
CAS Number: 25135-51-7
Commodity: Polymers
Nominal Granule Size:
3mm
Viscosity:
High Viscosity
Color:
Natural
PSU (Polysulfone) granules are high-performance thermoplastics with a glass transition temperature of approximately 190°C, making them suitable for high-temperature applications. Their hydrolysis and microbial resistance enable their use in the production of microfiltration and ultrafiltration membranes used in biomedical research and industrial water purification. Polysulfone exhibits high dielectric strength, which supports electrical insulation in aerospace and automotive electronics, ensuring reliability in demanding environments. Additionally, PSU granules are utilized in precision 3D printing for chemically resistant, high-strength laboratory and engineering components used in many research applications.
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Fair |
| Acids - dilute | Good |
| Alcohols | Good |
| Alkalis | Good |
| Aromatic hydrocarbons | Fair |
| Greases and Oils | Good |
| Halogens | Good |
| Ketones | Poor |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1kHz | 3.14 |
| Dielectric constant @1MHz | 3.1 |
| Dissipation factor @ 1kHz | 0.0013 |
| Dissipation factor @ 1MHz | 0.005 |
| Dielectric strength( kV mm⁻¹ ) | 17 |
| Volume resistivity( Ohmcm ) | 5x10¹⁶ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | HB |
| Radiation resistance | Good |
| Resistance to Ultra-violet | Poor |
| Limiting oxygen index( % ) | 30 |
| Water absorption( % ) | 0.4 |
| Water absorption - equilibrium( % ) | 0.85 |
| Density( gcm⁻³ ) | 1.24 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | M91 |
| Elongation at break( % ) | 50-100 |
| Tensile modulus( GPa ) | 2.48 |
| Izod impact strength( J m⁻¹ ) | 69 |
| Tensile strength( MPa ) | 70 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 1.8MPa( C ) | 174 |
| Upper working temperature( C ) | 150-180 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.26 |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 56 |
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