Best Polyamidimide rods Best Polyamidimide rods Best Polyamidimide rods
Polyamidimide (PAI) Rods: Unyielding Performance for a Wide Range of Applications
When it comes to exceptional mechanical strength and hardness, even at low temperatures, look no further than Polyamidimide (PAI) rods. These rods boast an impressive stability temperature of the mold, ensuring that they maintain their integrity under the most extreme conditions. With a glass transition temperature of +280°C, the PAI polymer remains unyielding, even when subjected to temperatures as high as +250°C during regular operation.
Polyamidimide rods are celebrated for their low coefficient of thermal expansion and minimal creep, high resistance to chemicals, and a limited flammability factor. This combination of attributes makes PAI rods the go-to solution for tackling complex challenges and serves as a viable alternative to metals like titanium, asbestos, Kevlar, phenol-formaldehyde-impregnated fiberglass, Teflon, and PEEK.
In addition to its impressive thermal and chemical resistance, polyamide-imide also exhibits resilience to environmental factors, such as UV, gamma, and X-rays. These rods can briefly handle temperatures surpassing 270°C, showcasing their adaptability in both high-temperature and cryogenic conditions.
With its ability to withstand considerable mechanical stress, PAI finds extensive use in a multitude of high-tech industries, from aerospace to instrumentation. Polyamidimide is available in rod diameters ranging from 10mm to 300mm, making it suitable for a broad array of applications.
Key Applications:
- Connectors
- Switches
- Relays
- Thrust washers
- Spline liners
- Valve seats
- Check balls
- Poppets
- Mechanical linkages
- Bushings
- Wear rings
- Insulators
- Cams
- Picker fingers
- Ball bearings
- Rollers
- Thermal insulators
Elevate your projects with the unbeatable performance of Polyamidimide (PAI) rods.
Mechanical Properties
| MECHANICAL PROPERTIES | VALUE | UNIT | PARAMETER | NORM |
|---|---|---|---|---|
| Impact strength (Charpy) | 81 | kJ/m2 | max. 7,5J | DIN EN ISO 179-1eU |
| Shore hardness | 85 | – | D scale | DIN EN ISO 868 |
| Compression strength | 12/32/90 | MPa | 1% / 2% / 5% | EN ISO 604 |
| Modulus of elasticity (tensile test) |
3600 | MPa | 1 mm/min | DIN EN ISO 527-2 |
| Tensile strength at break | 122 | MPa | 5mm/min | DIN EN ISO 527-2 |
| Modulus of elasticity (flexural test) |
3600 | MPa | 2mm/min, 10 N | DIN EN ISO 178 |
| Elongation at break | 8 | % | 5mm/min | DIN EN ISO 527-2 |
| Flexural strength | 173 | MPa | 2mm/min, 10 N | DIN EN ISO 178 |
| Ball indentation hardness | 221 | MPa | ISO 2039-1 |
Thermal Properties
| THERMAL PROPERTIES | VALUE | UNIT | PARAMETER | NORM |
|---|---|---|---|---|
| Thermal expansion (CLTE) | 4,2 | 10-5*1/K | 23-60°C, longitudinal | DIN EN ISO 11359-1;2 |
| Glass transition temperature | 285 | C | DIN EN ISO 11357 | |
| Thermal expansion (CLTE) | 4,2 | 10-5*1/K | 23-100°C, longitudinal | DIN EN ISO 11359-1;2 |
Electrical Properties
| ELECTRICAL PROPERTIES | VALUE | UNIT | PARAMETER | NORM |
|---|---|---|---|---|
| Dielectric constant | 3,5 | – | @ 1 MHz | DIN 53 481 |
| Dielectric constant | 3,8 | – | @ 100 Hz | DIN 53 481 |
| Dissipation factor | 0,019 | Ω/sq | @ 1 MHz | DIN 53 481 |
| Dielectric strength | 26 | kV/mm | ISO 60243-1 | |
| Dissipation factor | 0,0055 | % | @ 100 Hz | DIN 53 481 |
Other Properties
| OTHER PROPERTIES | VALUE | UNIT | PARAMETER | NORM |
|---|---|---|---|---|
| Flammability (UL94) | V0 | – | 3,2 mm | – |
| Moisture absorption | 0,4 / 0,57 | % | 24h / 96h (23°C) | DIN EN ISO 62 |
