Polymer surfaces

modification, functionalization, analysis

Surface modification of polymers is our expertise

Modifying the surface properties of polymers paves the way for new applications of these materials and more sustainble products.

With many years of experience in polymer science and technology, we develop technologies for surface modification of polymers and for the production of organic coatings.

The modification of the surface properties of polymers opened up many new application areas for these materials. Activation improves the printability of polyethylene films (packaging), it allows lacquering polypropylene-based copolymers (car bumpers), and plastic parts can be adhesively joined. Nanometer sized functional coatings can act as diffusion barriers, prevent the settlement of microbes, or as robust carriers for functional molecules on virtually any substrate. Micrometer thick coatings can switch their properties under the influence of light. Micro-structured surfaces can have many optical and mechanical functions. These functions help making more sustainable products with a better durabiliy and support the design for recycling.  

Our services include

  • consulting
  • feasibility studies
  • technology development
  • scale up
  • process monitoring and control
  • equipment selection
  • quality assurance
  • personnel training

Our technologies

  • activation and functionalization with low pressure plasma
  • plasma-enhanced thin film deposition
  • photochemical functionalization, in particular with vacuum-ultraviolet excimer radiation
  • advanced flame treatment
  • functionalization of polymer surfaces using gas phase and liquid phase chemical reactions
  • printing chemistry
  • surface analysis

Our equipment

Our equipment ranges from laboratory scale up to small industrial scale. We can do plasma treatments in a chamber with up to 0.4 m3. Webs (films, fabrics) can be treated at a width of up to 30 cm with low pressure plasma as well as with Corona (dielectric barrier discharge), flames, VUV lamps, with various printing techniques at atmospheric pressure.

For the analysis of surfaces and thin films we use state-of-the-art instrumentation.

Fraunhofer POLO

Together with Fraunhofer colleagues we joined our competencies and equipment in the area of polymer surfaces. We can support our clients in complex projects, too. The Fraunhofer Alliance POLOcan realize realizes complex projects for clients developing new concepts, innovative processes, and modern materials based on the surfaces of plastics and natural polymers.

Plasma Germany

We share our experience with companies, universities and research institutes in Germany and contribute to disseminating knowledge about surface technology by participating actively in Plasma Germany (German).  In particular, in the field of plasma and polymers (German) we contribute to the exchange of experiences.