Antistatic in practice: dust reduction on transparent plastic surfaces

Electrostatic charging as a cause

Transparent plastic surfaces, in particular those made of polycarbonate (PC) and polymethyl methacrylate (PMMA), tend to become electrostatically charged. This charge attracts dust particles from the surroundings and causes them to adhere to the surface, which can be problematic in many industrial applications.

Measurement of electrostatic charging

Electrostatic charging is usually measured with an electrometer. It is important that the measurements are carried out under controlled conditions in order to obtain reliable data. Factors such as humidity and temperature can influence measurement accuracy.

Suitable measures for reducing dust attraction

• Surface coatings: Antistatic coatings reduce charging and therefore dust attraction. They are specially developed for PC and PMMA and offer a long-term solution.
• Antistatic additives: These can be introduced during the production of plastics and act directly within the material. A well-known example is the use of polycarbonate with special additives.
• Antistatic sprays: These offer a short-term solution and are particularly suitable for regular maintenance and cleaning.

Safe agents for PC and PMMA

When selecting antistatic agents for PC and PMMA, only products that do not enter into chemical reactions with the plastics should be used. Regular tests and control measurements are necessary in order to ensure effectiveness and safety.

Application examples in industry

Industrial applications range from the automotive industry to electronics manufacturing. Particularly in cleanrooms, reducing dust deposits is essential in order to comply with cleanliness standards.

Additional information on the use of antistatic solutions can be found in our solutions section.

Frequently asked questions

What causes electrostatic charging on plastic surfaces?

Electrostatic charging arises from the separation of electric charges during contact and separation of different materials.

Which materials are particularly susceptible to dust attraction?

Polycarbonate and PMMA are particularly susceptible to electrostatic charging and therefore to dust attraction.

How can dust attraction on plastic be reduced?

Antistatic coatings and additives can effectively reduce dust attraction.

Are antistatic sprays a permanent solution?

No, antistatic sprays offer a short-term solution and must be renewed regularly.

Are there specific tests for antistatic properties?

Yes, electrometers are used to measure the electrical surface properties of plastics.