Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Release agent free demolding of components & heat and electricity conducting composite material

10.10.2013
At K 2013 in Düsseldorf (Hall 07, Stand B05) the Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Bremen, will present FlexPLAS® release films and ReleasePLAS® coatings which allow effective demolding of components without the use of release agents.

Focus will also be put on a new polymer-metal composite material which is suitable for the structural monitoring of components or for seawater desalination applications.


Release agent free manufacture of very large components: Checking the deep-drawn fold-free FlexPLAS® release film on the mold for a CFRP aircraft fuselage section (© Fraunhofer IFAM).


Heat conducting composite pipes for seawater desalination (© Fraunhofer IFAM).

Effective and residue-free demolding, as well as coating

It is a process that is repeated hundreds of thousands of times a day in industry on a small scale: A component is manufactured using a mold and thereafter removed from the mold. New technologies from Fraunhofer IFAM, namely FlexPLAS® release films and ReleasePLAS® mold coating technology, allow effective demolding of components without the need to use release agents.

The FlexPLAS® release film technology was awarded the “AVK Innovation Prize 2012” and the “Composite Innovations Award 2013”. Features of these films are their extreme elasticity and durability. They can be stretched with little force and can even withstand extreme elongation of up to 300 percent without functionality impairment. This is ideal for fold-free application, even on curved or structured molds. The films can also be used manufacturing very large components made of fiber reinforced plastics (FRPs).

Following demolding, the components can be immediately coated without the need for complex pre-treatment. This is because there is no transfer of materials from the release film, meaning no costs are incurred removing contaminants or residues of release agents. The new technology also allows the in-mold coating of fiber composite components: This process is relatively easy and involves applying a gel coat to the FlexPLAS® release film. The degree of matt/gloss of the coated surface can be adjusted via the roughness of the FlexPLAS® release film that is employed. This coating technique significantly lowers the risk of coating defects. The production of the FRP component itself takes place on top of the coating. The in-mold coating and FRP component are cured together and the coated component with the release film is then removed from the mold. If the release film is kept on the component to the end of the manufacturing process or until delivery to the final customer, then it also serves as a protective film.

In contrast, the ReleasePLAS® coating is applied directly to the mold. It perfectly matches the surface structure and its properties can be adapted to various customer-specific requirements.

New composite material conduct heat and electricity

The new material is a mixture of plastic and metal, namely a “polymer-metal composite”. A wide range of polymers can be used as the matrix material for the composite. The material can therefore be readily customized for specific applications. Other advantages: The material is easy to process because of his plastic character. It is also light and conducts electricity and heat very effectively due to the high metal content.

The composite material is ideal for the structural monitoring of load-bearing components. When a component is exposed to loads, the electrical resistance of the composite changes. These signals can be transmitted via a cable on the component and then analyzed by a measuring instrument. The composite material is used in the form of heat-conducting pipes for seawater desalination. The principle of desalination: Seawater is sprayed onto pipes through which hot gas or water flows, so heating the pipes. Pure water evaporates from the seawater leaving behind a salty waste liquor.

Contact
K 2013 I October 16-23, 2013 I Düsseldorf I Germany
Hall 07 I Stand B05

Anne-Grete Becker | Fraunhofer-Institut
Further information:
http://www.ifam.fraunhofer.de

More articles from Trade Fair News:

nachricht LZH showcases laser material processing of tomorrow at the LASYS 2018
22.05.2018 | Laser Zentrum Hannover e.V.

nachricht Achema 2018: New camera system monitors distillation and helps save energy
22.05.2018 | Technische Universität Kaiserslautern

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

When corals eat plastics

24.05.2018 | Ecology, The Environment and Conservation

Surgery involving ultrasound energy found to treat high blood pressure

24.05.2018 | Medical Engineering

First chip-scale broadband optical system that can sense molecules in the mid-IR

24.05.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>