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Plasma coating | Customized surfaces

Adding special precursors to the discharging plasma stream enables layers of customized materials to be applied to plastics and metals.

The following finishes can be applied:

  • Corrosion-resistant coating
  • Antibacterial coating
  • Antireflex coating
  • Scratch-resistant coating
  • Barrier coating
  • Adhesive coating

Surface treatment at atmospheric pressure

In the atmospheric pressure plasma polymerization process, the molecules of organic basic substances are fragmented, ionized and partially oxidized by the high-energy plasma stream. The excited species interact with the substrate surfaces and form an even, firmly bonded, non-porous layer, The coating is applied with a modified nozzle from our industrially established Plasma MEF series, expanded to include a precursor evaporator unit.

The composition and properties of the layer are determined by the degree of fragmentation and the oxidation level of the precursor in the (air) plasma as well as by the plasma output.

If functional nanoparticles are deposited along with the precursor, the surface properties change again. Surfaces can be made antibacterial e.g. by integrating silver nanoparticles in the coating.

Our development partners would be happy to provide more information.

Innovent

Inline capacity at atmospheric pressure

Functional layers can also be applied along the production line. Before this can occur, trials should be run to determine whether the thickness required can be applied at the given throughput speed or cycle.