PLASTICS
Engineering plastics
Engineering plastics are polymers that are characterised by their mechanical, electrical and thermal properties. They are intended for purely technical applications rather than visual or haptic requirements.
Technical thermoplastics can usually withstand temperatures of up to 130°C, while corresponding thermosets, such as the Laminates can be used permanently at temperatures up to 150°C. They are characterised above all by high strength, good toughness and damping properties as well as generally good processability and a balanced cost-benefit ratio.
Engineering plastics are used for all kinds of applications. For example, plain bearings, rollers and wheels or seals as well as structural parts, insulators or housings and workpiece holders are made from these materials.
POLYTRON Kunststofftechnik offers engineering plastics from the following material groups for different requirements and application conditions:
Polyamides
Among engineering plastics, polyamides (PA) are certainly the best known and most widely used plastics. They are generally semi-crystalline thermoplastics with good strength, toughness and hardness, which can be used in many different applications.
The semi-finished products can be manufactured using two different processes: Extrusion (E) or casting (G). POLYTRON uses both extruded and moulded polyamide grades for technical components. In addition, there are different grades in each quality that are optimised for specific areas of application.
Find out more about polyamides and their special features!
Polyacetals (POM)
Polyacetals (POM), also known as polyoxymethylene or polyformaldehyde, are semi-crystalline thermoplastics produced by the polymerisation of formaldehyde.
Both pure homopolymers (POM-H) and co-polymers (POM-C) are used. In the co-polymers, ring ethers are incorporated into the POM molecular chain, which improve chemical resistance in the alkaline range and hydrolysis resistance in particular.
POMs generally have good rigidity and hardness and absorb virtually no water. They have good sliding properties and their electrical and dielectric properties are largely independent of humidity and temperature. POM is compatible with foodstuffs and is also available in special biocompatible grades.
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Teratron - Thermoplastic polyester (PET/PBT)
Polyethylene terephthalate (PET) and polybutylene terephthalate (PBT) are polyesters of terephthalic acid and, like the Polycarbonate (PC) to the aromatic (unsaturated) polyesters.
The aromatic groups (benzene rings) found in thermoplastic polyesters stiffen the molecular chains and make the material mechanically strong and therefore well suited for technical applications.
The semi-crystalline, non-reinforced PET has a high mechanical strength and hardness and, thanks to its low coefficient of thermal expansion and low moisture absorption, has good dimensional stability.
Polycarbonate (PC)
Polycarbonate (PC) is a clear, amorphous thermoplastic with good rigidity and strength as well as high impact strength for amorphous plastics.