PI - Polyimide

Ultra-high performance plastic based on polyimide

The material has excellent heat resistance and wear resistance.
The material is robust and easy to machine.
Polyimide is also perfectly insulating and has a very stable friction level.
Due to its outstanding individual properties, the material thus occupies the top position among plastic materials.

The plastic is used when it is necessary to withstand high temperatures as well as very rough operating temperatures, to save weight, to seal safely and easily or to minimize friction and wear. For example, in industrial electronics, aerospace, mechanical engineering, transportation, and the manufacture of solar systems, semiconductors and flat panel displays.

There are different types of polyimides. Depending on the type, polyimides are amorphous or semi-crystalline plastics with a generally relatively high continuous service temperature of over 200°C.
The so-called imide group, consisting of an aromatic monomer unit, nitrogen and two carbonyl groups, all of which are present in the molecular structure of polyimides, is responsible for the good thermal properties of the polyimides.

Main properties of polyimides

Polyimides have good thermal properties. In addition, polyimides have a high wear resistance, which can be further improved by additives and modifications.
The heat deflection temperature of polyimides ranges up to 400°C.
Purely aromatic polyimides form a more or less cross-linked structure and are therefore de facto thermoset.
However, thermoplastic processable polyimides can be produced by modifications in the molecular chain. In this respect, polyimides can be divided into the particularly temperature-resistant, thermosetting polyimides and the more easily processable, thermoplastic polyimides.

Delivery forms of polyimides

In principle, different thermoplastic and thermosetting polyimides are available with different fillers and modifications.

Mechanical components are mainly manufactured from the following polyimides:

Polyimide Plavis-N
Characterized by excellent physical properties, outstanding wear resistance and mechanical strength, and maximum thermal and electrical insulation.
Modification of Plavis-N: Unfilled

Polyimide Plavis-G15
Characterized by mechanical strength, outstanding wear resistance and excellent sliding and friction properties. Furthermore, Plavis-G15 is self-lubricating.
Modification of Plavis-G15: 15% graphite

Polyimide Plavis-C
Characterized by excellent mechanical strength, outstanding conductivity and outstanding resistance.
Modification of Plavis-C: Unfilled

Polyimide Plavis ESD
Characterized by excellent mechanical strength, outstanding conductivity and outstanding resistance. In addition, Plavis ESD has excellent wear resistance and is also self-lubricating and electrostatically absorbing.
Modification of Plavis-ESD: Unfilled

Polyimide Plavis-S
Characterized by excellent physical properties at very high temperatures up to 350° C
Modification of Plavis-S: Unfilled

Machining of polyimide

We use CNC milling and CNC turning as manufacturing processes. In addition, water jet cutting technology is used to manufacture components. We also supply additional polyimide films, which are mainly used in the electrical industry. The films are punched and plotted in the centre of gravity. Polyimide film can also be equipped with self-adhesive properties.