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A direct process to reuse dry fiber production waste for recycled carbon fiber bulk molding compounds

: Saburow, O.; Huether, J.; Maertens, R.; Trauth, A.; Kechaou, Y.; Henning, F.; Weidenmann, K.A.

Volltext (PDF; )

Procedia CIRP 66 (2017), S.265-270
ISSN: 2212-8271
Conference on Composite Materials Parts Manufacturing (CCMPM) <1, 2017, Karlsruhe>
Deutsche Forschungsgemeinschaft DFG
GRK 2078
Zeitschriftenaufsatz, Konferenzbeitrag, Elektronische Publikation
Fraunhofer ICT ()

Recycling concepts for composites are gaining importance facing constantly growing production rates in multiple sectors. Today, a high percentage of the carbon fiber waste is generated during production. The unimpregnated share of waste cannot be reused as high-performance non-crimp fabrics, since shape, size and orientation of the patches were changed during the previous production step. The approach presented here shows the direct processing of chopped dry non-crimp fabrics cutting waste to Bulk Molding Compounds. The manufactured BMC materials are able to compete with materials from state-of-the-art Sheet Molding Compounds produced using virgin carbon fibers in terms of mechanical performance.