Efficiency Engine: Release Agent Free Manufacturing of Composite Parts with Textured Surfaces by Flexplas® Technology
In this work, different ways to achieve a textured FlexPLAS® release film and the corresponding influence/impact on fibre reinforced plastics (FRP) surface finishes were investigated. Different surface topographies of the plasmapolymeric coated release film were achieved by variation of the base film recipe with different filler contents and by hot embossing with different designs. The topography of the film was compared to the corresponding FRP surfaces, which were manufactured with those films. Hereby, it was shown that the surface roughness of the film and the corresponding part surfaces can be adjusted over a wide range - from microstructured finishes, e.g. for a matt surface optics, up to macroscopic textures which resemble peel ply surfaces. Additionally, it could be verified that the surface texture improves the air egress during the application of the film to the tooling.
Authors: Felix Grimm, Johanna Hofmann, Peter Kunzelmann, Matthias Ott, Gregor Grabl
Conference: SAMPE Europe Conference 2016