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  4. CFRP-recycling following a pyrolysis route : process optimization and potentials
 
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CFRP-recycling following a pyrolysis route : process optimization and potentials

Citation Link: https://doi.org/10.15480/882.1561
Publikationstyp
Journal Article
Date Issued
2009
Sprache
English
Author(s)
Meyer, Leif Ole  
Schulte, Karl  
Grove-Nielsen, Erik  
Institut
Kunststoffe und Verbundwerkstoffe M-11  
TORE-DOI
10.15480/882.1561
TORE-URI
http://tubdok.tub.tuhh.de/handle/11420/1564
Journal
Journal of composite materials  
Volume
43 (2009)
Issue
9
Start Page
1121
End Page
1132
Citation
Journal of Composite Materials 9 (43): 1121-1132 (2009)
Publisher DOI
10.1177/0021998308097737
Scopus ID
2-s2.0-65449170819
Publisher
Sage Publ.
Pyrolysis is a well known method to recover carbon fibers from composite waste. In order to bring these recycled carbon fibers back into new composites, and to provide a `closed loop' for this material, their properties have to be investigated and proved suitable for new products. In a former study a strong influence of the pyrolysis process on the surface of the recovered fibers was found. This in turn influenced other properties like fiber strength, electrical properties and fiber-matrixadhesion. These results offer the possibility to control individual properties of recycled carbon fibers and their composites, but on the other hand they indicate a necessity for process optimization in order to provide a high quality of the recycled fibers. In this study different process parameters during pyrolysis were investigated and optimized in order to provide the reclaimed carbon fibers with properties close to new fibers. The optimization was done by labscale pyrolysis experiments performed in a thermogravimetric analyzer (TGA), with variation of pyrolysis temperature, isothermal dwell time and oven atmosphere, respectively. The recovered fibers were analyzed by scanning electron microscopy and Raman spectroscopy. Finally a pyrolysis test on a semi-industrial-scale was successfully performed to demonstrate the technical viability of the optimized process parameters.
Subjects
CFRP
carbon fibre
epoxy
recycling
pyrolysis
DDC Class
620: Ingenieurwissenschaften
Lizenz
http://rightsstatements.org/vocab/InC/1.0/
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