期刊
COMPOSITES PART B-ENGINEERING
卷 221, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2021.109007
关键词
Carbon fibre; Discontinuous reinforcement; Recycling; Mechanical properties
资金
- Colorado Office of Economic Development and International Trade (OEDIT) [CTGG1 2018-1981, CTGG1 2018-0632]
- Advanced Industries Accelerator Program
- JobsOhio
- U.S. Department of Energy [DE-AC05-00OR22725]
- Office of Energy Efficiency and Renewable Energy (EERE) [DE-EE0006926]
Recycled carbon fiber has historically been challenging to integrate into composite manufacturing due to its unique characteristics, but this study shows that it can be a viable alternative for short-fiber discontinuous applications, performing similarly to virgin fiber reinforcement.
Recycled carbon fiber has historically proven challenging to integrate into composite manufacturing due in no small part to the low-density, randomly oriented, discontinuous fiber format that results from typical recycling. Discontinuous fiber requires the use of alternative technologies than those traditionally applied to continuous fiber (e.g., hand lay-up, winding). Extrusion compounding is one such applicable technology, but material transfer into the system requires alternative feeding equipment or the use of an altered procedure as trialed in this research. In this study, an injection molding compound for automotive applications was prepared with recycled carbon fiber and compared against an existing commercial compound. Input fibers and molded compound were evaluated for mechanical performance, while relevant variables such as compounded fiber alignment and aspect ratio were compared to the existing baseline material to confirm a like-for-like composite material structure. Analysis indicates that recycled fiber performs similarly to virgin fiber reinforcement, demonstrating that recycled fiber may be a viable drop-in replacement for short-fiber discontinuous applications.
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