Carded recycled carbon fiber mats for the production of thermoset composites via infusion/compression molding

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Proceedings titleSAE Technical Papers
ConferenceSAE 2013 AeroTech Congress and Exhibition, AEROTECH 2013, 24 September 2013 through 26 September 2013, Montreal, QC
SubjectAircraft industries; Carbon fiber reinforced; Composite plates; Fiber volume fractions; Flexural testing; Pyrolysis process; Thermoset composites; Ultrasound treatments; Exhibitions; Fibers; Mechanical properties; Molding; Pyrolysis; Recycling; Scanning electron microscopy; Tensile testing; Textile industry; Thermosets; Carbon fibers
AbstractThe use of carbon fiber reinforced thermoset composites has doubled in the last decade raising questions about the waste generated from manufacturing and at end-of-life, especially in the aircraft industry. In this study, 2.5 cm long carbon fibers were recovered from thermoset composite waste using a commercial scale pyrolysis process. Scanning electron microscopy, density measurements, single filament tensile testing as well as micro-droplet testing were performed to characterize the morphology, mechanical properties, and surface adhesion of the fibers. The recycled fibers appeared to be mostly undamaged and clean, exhibiting comparable mechanical properties to virgin carbon fibers. A carding process followed by an ultrasound treatment produced randomly aligned recycled fiber mats. These mats were used to fabricate composite plates, with fiber volume fractions up to 40 %, by infusion / compression molding. The mechanical properties of the plates were evaluated by tensile and flexural testing, and were found to be comparable to an equivalent containing virgin carbon fibers. Copyright © 2013 SAE International.
Publication date
AffiliationNational Research Council Canada (NRC-CNRC)
Peer reviewedYes
NPARC number21270955
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Record identifier71a49a82-1093-4487-90e3-51591385c610
Record created2014-02-18
Record modified2016-05-09
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