Polyamide (PA)
Semi-crystalline, thermoplastics
Polyamides or PA Nylon have a very good mechanical property profile, particularly high toughness and excellent sliding and wear behaviour. The properties vary from the hard and tough PA 66 to the soft and flexible PA 12. Depending on the type, polyamides absorb different amounts of moisture, which affects the mechanical nylon properties and dimensional stability.
In the manufacture of shapes, a distinction is made between the extrusion and casting processes. In the casting process, nylon polyamide with larger dimensions and a higher degree of crystallisation (mechanical stability) can be produced, which also involve less internal stress. The extrusion process, on the other hand, enables more cost-effective production.
Properties:
- medium to high strength, hardness, stiffness, toughness
- high mechanical damping characteristics
- good fatigue strength
- very good closing stability
- good sliding properties
- usually high moisture absorption
- mostly low dimensional stability
Applications:
- Mechanical Engineering
- Transport and conveyor technology
- Packaging and paper machines
- Electrical Engineering
- Gears
- Slide bearing
- Castors
