Plasma applications

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Plasma

Plasma applications

Plasma technology has become the standard process for adhesive bonding in automotive safety electronics.

To the VP4 plasma unit

The application of plasma technology is intended to achieve different goals.

Removal of separating layers

As preparation for subsequent processes such as bonding, coating, etc., plasma technology is used to pre-treat the surface in such a way that unwanted source materials and dust particles are removed. Plasma technology makes it possible to further process the materials immediately after plasma cleaning.

Increase of surface tension

The surface of plastics, metals and other materials is modified through the use of plasma technology in such a way that the surface tension is increased to the desired level, significantly improving wettability.

Plasma cleaning

Plasma treatment and plasma cleaning optimally prepare surfaces on plastics, metals and many other materials for subsequent processes such as bonding, coating and various other processes. The material surfaces are gently cleaned of unwanted source materials and even the smallest dust particles. The reliable plasma fine cleaning removes any additives, hydrocarbons, mold release agents and plasticizers from plastic surfaces. The plasma-treated materials can be further processed immediately after plasma cleaning.

Plasma activation

Plasma activation modifies surfaces of plastics, metals and various other materials to increase the surface tension required for subsequent processes such as bonding and printing. Plasma activation significantly improves wettability on material surfaces.

Plasma functionalization

Functionalization with atmospheric pressure plasma enables a significant improvement in surface energy on thermally sensitive surfaces. Thus, polymer surfaces can be bonded, printed and coated without problems in subsequent processes.

Passivation by plasma pretreatment

Plasma passivation specifically protects surfaces on a metallic material from corrosion. The passivation layer created improves corrosion protection and slows down corrosion.

Reduction through plasma pretreatment

Plasma pretreatment can reduce the surface roughness of insulating and metallic coatings without affecting their physical properties.

Subsequent processes and surfaces

Plasma technology is applied before different processes and on different surfaces.

Subsequent processes

Sealing - dispensing liquid seals, vulcanising, gluing in a gasket

Application of thermally conductive adhesives

Potting, vacuum potting

Laminating

Printing

Conformal Coating 

Painting

Injection moulding (2K, overmoulding)

Hot-Melt 

Soldering

Welding

Bonding

Surfaces

Plastics

Thermosets

Thermoplastics 

Typical semi-crystalline thermoplastics in the automotive electronics industry (PA66, PBT,..)

Non-polar materials (PP, PE, PA12)

Transparent amorphous thermoplastics e.g. in lighting technology (PMMA, PC (ABS-PC))

High temperature resistant materials / high performance plastics (PPA, PPS, PEEK)

TPE, TPO, PTFE 

Elastomers, silicones

Printed circuit boards (FR4)

Metals 

Ceramics

Magnets 

Fibres

Textiles 

Composite materials (GRP, CFRP)

Cardboard 

Glass

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