|
PET Poly(ethylene terephthalate)
PET is a semicristalic technical plastic with very high resistance to chemicals, mechanical endurance and ductility. It covers a wide range of applications in many branches of industry.
Properties:
- high mechanical endurance,
- high rigidity and hardness,
- high constant endurance (also in high temperatures),
- good ductility,
- good gluability and weldability,
- very high creep resistance,
- low and constant friction coefficient,
- very high abrasion resistance (comparable or higher than polyamides), good dimensional stability, good resistance against dirt,
- better then PA and POM resistance 4 against acids,
- physiological harmless (admitted to direct contact with food),
- high energetic radiation resistance (gamma or X),
- low impact strength,
- very good electrical insulation,
- diluted acids and many dissolvent resistance.
Processing
Due to good processing properties and dimensional stability, even in high temperatures PET is suitable for manufacturing parts with narrow tolerances.
Abrasive and sliding properties
PET has low sliding coefficient and high dynamic loads, making it ideal for sliding and abrasive applications. It allows reducing driving forces in machines, avoiding stick-slip motion and extending working life of parts made from it. PET used for guide tracks, belt tracks and sprockets.
Dimensional stability
Moisture resistance and low coefficient of linear extension guarantee PET's dimensional stability. Therefore, it can be used in manufacturing process of precise parts with large loads and /or resistant against abrasiveness: guide rails, sprockets, sleeves, pumps elements.
UV resistant
PET is characterized by a very good UV resistance and low water absorption, therefore is suitable for many applications. It reduces costs of surface protection while using metal parts.
Food application
PET is admitted to the direct contact with food (it is physiologically harmless).
Colour
PET is available in white colour, and its self-lubricating type in light grey colour.
| | | | |