Plasma pretreatment - optimal material pretreatment for further industrial processes


Surface treatment by plasma

Plasma pretreatment - optimal material pretreatment for further industrial processes

Plasma pretreatment - optimal material pretreatment for further industrial processes

The gluing of materials is becoming increasingly important in the manufacturing industry. Plasma pretreatment ensures that this process gains in quality. The material is optimally prepared for these processes. This technology is used for cleaning, surface activation and plasma functionalization for materials of all kinds. Whether plastic, metal or glass are used as composites is irrelevant here. The use of plasma pretreatment not only makes the processes more effective, but also makes them more environmentally friendly.

Which plasma processes exists?

There are two suitable processes for pretreatment with plasma. Depending on the process, plasma pretreatment can be incorporated into production lines or can be carried out in separate chambers. It is therefore important to choose an individual solution that is optimized for your own production process.

Atmospheric pressure plasma

Atmospheric pressure plasma is also called normal pressure plasma. The abbreviations for this are AD plasma or ADP. The plasma is generated with pressure equivalent to the surrounding atmosphere. These systems can be easily integrated into production lines.

The material is removed with a jet or nozzle, in which the plasma chamber is located. The method works only selectively, whereby not every point can be reached by the plasma. This is suitable when only parts of the surface are to be prepared for further processing by the plasma treatment. This precise application technique can be individually adapted and can be reconfigured every time.

Low pressure plasma

In this process, the plasma is generated in a chamber under negative pressure. The plasma is created by an injected process gas. The low-pressure plasma is also called NDP.

The material is introduced into the vacuum chamber and is treated therein. This process reaches every corner of the material, cavities, and the surface is treated.

Further information about plasma pretreatment

What is Plasma?

By supply of energy, the state of matter of materials can be changed - from solid to liquid, to gaseous, to plasma. Plasma is thus the "fourth state of matter". It consists of ions, free electrons and neutral atoms or molecules. Plasma is artificially generated in an electric field. Plasma contains free charge carriers. Its electrical conductivity is an essential property of the particle mixture.

What is Plasma pretreatment?

Plasma pre-treatment involves the processing of the material or components with plasma. As a result, the properties of the material surface change. Consequently, the material's adhesiveness and wettability are enhanced. In addition, the surface roughness also changes, making it easier for the material to bond with new materials (adhesives, etc.).

How does Plasma pretreatment work?

During plasma pre-treatment, plasma impacts the surface of the material of the components. The plasma breaks the molecular and intermolecular bonds of the surface. This results in chemical reactions and the surface acquires a higher surface energy as well as a higher oxygen group enrichment. Simultaneously, the adhesive forces and wettability of the surface are increased. Moreover, the surface roughness also changes, which is particularly relevant for optimizing the adhesion of materials.

What can be achieved with Plasma pretreatment?

Plasma pre-treatment can be used to achieve a diverse range of goals. Therefore, this technology can be used for the following tasks:

  • Removal of separating layers
  • Increasing the surface tension
  • Surface Cleaning
  • Surface Activation
  • Surface Functionalization
  • Surface passivation
  • Reduction of surface roughness

Owing to its versatility, plasma pre-treatment is used in almost all industries. The technology is already widely used in the automotive industry, electronics, medical and pharmaceutical industry and in association with renewable technologies.

Get the benefits of plasma pre-treatment with plasma technology from bdtronic - we are looking forward to providing you consultation!

Why Plasma pretreatment is important?

Depending on surface condition, materials have different properties. Basically, materials surfaces must be cleaned. However, depending on the type of cleaning, it can have a negative effect on the properties. Cleaning or treatment with plasma increases the adhesion of the materials. As a result, these materials can be adhered better, and the quality of the adhesive bond is improved. However, not only adhesives last better after plasma treatment, but also varnishes and prints. For example, the durability of components is increased, and products can be subjected to more stress. At the same time, the increased adhesive efficiency reduces adhesive consumption accordingly and ensures economic benefits for the processes.

For which materials Plasma pretreatment is suitable?

Plasma pre-treatment is suitable for many materials. After treatment, the materials are perfectly prepared for the next steps. Thus, the pre-treatment is suitable for the following materials, among others:

  • Plastics
  • Metal
  • Glass

It is particularly an ideal pre-treatment before the application of thermally conductive pastes, before the dispensing of liquid seals as well as before bonding, potting and varnishing.

Why should you decide for bdtronic

Use an experienced professional for the plasma surface treatment of your materials. We impress with our technology in many areas:

  • More than 40 years of experience
  • For highest quality requirements
  • Expertise in a wide range of industries

You will get a customer-oriented, process-oriented, economical and goal-oriented service working with us. Furthermore, benefit from our worldwide service.

Together with you we will find the most suitable solution for your company - feel free to contact us!