Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS

Development of split-film co-knitted thermoplastic composites

A new generation of continuous fibre reinforced thermoplastic textile structures has been developed, called Split-Warpknits. Split-Warpknits are warpknitted textile structures that are composed of reinforcing fibres and a thermoplastic material. The textile structure can be uni-axial (where the fibres are oriented in the same direction), bi-axial (the fibres are knitted together in warp 0 and weft 90 direction) or multi-axial (where up to 8 layers are knitted together in different orientations). Extensive research and development has been done on the following different levels: material selection and development; transformation from film to textile structure; development of a process technique; product development (demonstrator parts). Two different Split-Warpknits have been developed: one based on polypropylene (PP)/glass, the other on polyethylene terephthalate polymer (PETP)/ glass and for high performance applications a polyether imide (PEI)/aramide structure has been developed. Novel production techniques have been studied (vibrational technique, QUIKTEMP, induction heating, porous steel) and various demonstrator parts have been produced.

Reported by

Karl Mayer Textilmaschinenfabrik GmbH
Brühlstraße 25
63179 Obertshausen
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