Sgl Automotive Carbon Fibers Gmbh & Co. Kg

Ostthuringische Materialprufgesellshaft Fur Textil Und Kunststoffe Mbh

Ostthuringische Materialprufgesellschaft Fur Textil Und Kunststoffe Mbh

Thomas Reussmann

Gerald Ortlepp

Renate Luetzkendorf

Klaus-Peter Mieck

Renate Lützkendorf

A method produces a flat semi-finished product from a fiber composite material that contains individual carbon fibers, carbon fiber bundles, or a mixture thereof in a defined anisotropic fiber orientation and a thermoplastic matrix material. The anisotropy of the carbon fibers is created in a carding process using the high orientability of admixed non-carbon textile fibers, at least some of the non-carbon textile fibers being thermoplastic, and the carbon fibers having been isolated from waste or used parts. The flat fibrous web which is produced by a carding process and which has a specific orientation of the carbon fibers in the longitudinal direction is compressed into a sheet material under the effect of heat. This enables the use of carbon fibers, for example from production waste, as reinforcing fibers, whereby a less expensive raw material is provided and the carbon fibers are contained in the waste materials are recycled.

Method for producing a flat semi-finished product from a fiber composite material and flat semi-finished product

A continuous fiber granulate material includes granulate particles having reinforcing staple fibers helically arranged in a thermoplastic matrix. The reinforcing staple fibers are located in a sheathed zone of the granulate particles along with a melted matrix material, with the granulate further including a core zone having unmelted thermoplastic staple fibers. The continuous fiber granulates have good free-flowing properties and a uniform distribution of reinforcing fibers.

Continuous-strand pellets and method and device for preparing continuous-strand pellets

Growing community of inventors

Rudolstadt, Germany

Thomas Reussmann