Low-maintenance continuous Air2Air PECVD film coating via a In-Plasma concept (In-Plasma-Air2Air) (T06#)

• Subject Area: Coating and Surface Technology
• Term: from 2020 to 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 138690629

Plastic food packaging requires a gas barrier to protect food. Commercial plastics, such as. B. PET, do not have a sufficient blocking effect. Multilayer films produced by coextrusion exhibit this barrier effect, but their components cannot be separated economically, and therefore cannot be recycled according to type. The present transfer project should work out how plastic film can be plasma-chemically equipped with a barrier layer using PECVD. These barriers are very thin (a few 10 nm) SiO2 layers, with which the web is to be coated. Many physical and material science issues have been successfully dealt with. Thanks to the cooperation with experienced industrial partners, there are also very good solutions for the crucial technical questions, which should be checked, investigated and verified in the transfer project.

• DFG Programme: CRC/Transregios (Transfer Project)
• Subproject of: TRR 87: Pulsed High Power Plasmas for the Synthesis of Nanostructural Functional Layers
• Major Instrumentation: Vakuumanlage und Rohrperipherie
• Applicant Institution: Ruhr-Universität Bochum
• Business and Industry: Bühler Alzenau GmbH; Constantia Pirk GmbH & Co. KG; Diener electronic GmbH + Co. KG; Pfeiffer Vacuum Components & Solutions GmbH; Reifenhäuser Cast Sheet Coating GmbH & Co. KG; SIG Combibloc Systems GmbH
• Project Heads: Professor Dr.-Ing. Peter Awakowicz; Professor Dr. Rainer Dahlmann; Professor Dr.-Ing. Christian Hopmann