Abstract
This work deals with the fabrication of an innovative hybrid thermoplastic prepreg by continuous hot forming process. The material, suitable also for Automated Fiber Placement process, is produced through a consolidation of commercial PEEK-Carbon Fiber prepreg sandwiched between two amorphous PEI films. Consolidation is performed by a purpose-designed automated prototype equipment operating on defined pressure and thermal cycles. Then preliminary tests on first trials produced were carried out. These activities have been developed in the frame of the NHYTE project, a Research and Innovation Action funded by the European Union's H2020 framework programme, under Grant Agreement No 723309 NOVOTECH acting as Coordinator presents this paper on behalf of all Partners of the project. The proof of NHYTE project concept is the manufacturing of a fastener free and high performing fuselage portion demonstrator.
Highlights
State-of-the-ArtThe PEEK-Carbon Fiber prepreg is a widely used material for commercial applications and properties of the structures realized with this material are similar to the ones performed with the best class of thermosets, with some specific properties (e.g. toughness and impact resistance) better than those of the best thermosets
The PEEK-Carbon Fiber prepreg is a widely used material for commercial applications and properties of the structures realized with this material are similar to the ones performed with the best class of thermosets, with some specific properties better than those of the best thermosets. Such prepreg ensures both functions of toughness enhancement and process simplification, including improved cycle times and lower energy consumptions, since it does not require the use of an autoclave curing phase
An innovative solution is proposed based on the addition of amorphous PEI films to Carbon-PEEK prepreg, performed in condition of controlled temperature history
Summary
The PEEK-Carbon Fiber prepreg is a widely used material for commercial applications and properties of the structures realized with this material are similar to the ones performed with the best class of thermosets, with some specific properties (e.g. toughness and impact resistance) better than those of the best thermosets. Such prepreg ensures both functions of toughness enhancement (multilayer material) and process simplification, including improved cycle times and lower energy consumptions, since it does not require the use of an autoclave curing phase.
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