back to top
My wish lists
Save your wish list
If you want to add more content to your wish list, simply log in. If you do not have a user account, please register for the Hanser Customer Center.

» Do you already have a user account? Please log in here.
» Don't have a user account yet? Please register here.
Your wish lists
If you want to use your wish list during your next visit, simply log in. If you do not have a user account, please register for the Hanser Customer Center.
» Do you already have a user account? Please log in here.
» Don't have a user account yet? Please register here.

« Back

Your advantages at a glance

  • One login for all Hanser portals
  • Individual home page for faster access to preferred content
  • Exclusive access to selected content
  • Personal wish lists on all portals
  • Central management of your personal information and newsletter subscriptions

Register now
Deutsch
Bookmark Bookmarked
05-14-2018

Remove Components from Molds without Residuals

Release Agent Free Manufacture of FRP Components

The plasma-coated FlexPlas release film developed by the Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM (Bremen and Stade, Germany) has already been successfully used for a number of years for the manufacture of contaminant-free fiber reinforced plastic (FRP) components. In collaboration with Infiana Germany GmbH & Co. KG this technology is now being adapted and further developed for special customer requirements.

The release film is used to replace conventional release agents and allows components to be removed from molds without any residuals. Additionally, the mechanical separation of the component from the mold via the film means the molds have a considerably longer service life. According to IFAM FlexPlas is a worldwide first, namely it is the only flexible plasma-polymer coated release film that allows the manufacture of contaminant-free FRP components.

Removal of FlexPlas release film from a contaminant-free CFRP component after curing in the hot press (© Fraumhofer IFAM)

The Automation and Production Technology team at Fraunhofer IFAM's Research Center CFRP North (Forschungszentrum CFK Nord) in Stade have recently successfully extended the potential use of FlexPlas release film: The production of carbon fiber reinforced plastic (CFRP) using prepregs in a hot press enables the production of large batch numbers with two smooth sides in short cycle times.

Also, high and constant component quality is guaranteed and no time-consuming sanding of components after curing is required. There is furthermore no need to clean or apply release agent to the molds, so increasing the added value.

The research work has demonstrated that FlexPLAS release film can also be used for molds of more complex geometry by adapting the process steps and parameters for prepregs in hot presses. The film provides protection for the cured component and can be easily removed, so leaving a clean matt surface that can be coated/lacquered without further pre-treatment.

Further Increase the Degree of Automation

The next development steps are explained by Joachim Scheller, Project Leader for Adaptive Application Systems: "We will start by implementing an already planned automation concept for release agent free FRP manufacture in complex press-molds. As a result, we will increase the degree of automation of the film feed, the inserting of the preform, and the component removal and so further increase the benefit of using FlexPlas release film for the hot pressing of prepregs."

The Automation and Production Technology team at Fraunhofer IFAM not only utilize their technical expertise in this area but also their knowledge of FRP manufacture. This combined know-how allows us to develop tailored technologies and processes with FlexPlas release film to meet customer requirements.

Company profile

IFAM Fraunhofer-Institut für Fertigungstechnik und Angewandte Materialforschung

Wiener Str. 12
DE 28359 Bremen
Tel.: 0421 2246-0
Fax: 0421 2246-300

These articles might be interesting for you
Newsletter

Would you like to subscribe to our Newsletters on plastics technology and profit from the latest information?

Subscribe here

Subscribe here