Journal
TEXTILE RESEARCH JOURNAL
Volume 87, Issue 13, Pages 1655-1664Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0040517516658511
Keywords
recycled carbon fiber; hybrid yarn; carding; spinning
Categories
Funding
- German Research Foundation at the Technische Universitat Dresden [DFG CH 174/34-1]
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This article reports the successful manufacturing of hybrid yarns from virgin staple CF (40 or 60mm) or recycled staple CF (rCF) by mixing with polyamide 6 (PA 6) fibers of defined length. The hybrid yarns are produced using an optimized process route of carding, drawing, and flyer machine. Furthermore, the influence of CF length, CF type (i.e. virgin or rCF), CF volume content, and twist of the yarn are also investigated regarding the tensile properties of unidirectionally laid (UD) thermoplastic composites. The results show that CF length, yarn twist, and CF content of composites play a big role on the tensile properties of thermoplastic composites. From the comparison of tensile strength of UD composites produced from 40 and 60mm virgin staple CF, it can be seen that the increase of yarn twist decreases the tensile strength. However, the effect of twist on the tensile properties of UD composites manufactured from 40mm virgin staple CF is insignificant. The tensile strength of UD thermoplastic composites manufactured from the hybrid yarn with 40 and 60mm virgin staple CF and rCF is found to be 771 +/- 100, 838 +/- 81, and 801 +/- 53.4MPa, respectively, in the case of 87T/m containing 50 volume% CF.
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