Engineering and Technology

Toward a circular economy: zero-waste manufacturing of carbon fiber-reinforced thermoplastic composites

P. R. Barnett, N. S. Hmeidat, et al.

Discover groundbreaking research by Philip R. Barnett, Nadim S. Hmeidat, Bingqian Zheng, and Dayakar Penumadu, as they tackle the limitations of current recycling technologies in fiber-reinforced composites. This innovative work demonstrates how recycled carbon fibers and polyphenylene sulfide can be remanufactured while maintaining fiber length and reducing variability, paving the way for a more sustainable future in composite remanufacturing.

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Abstract

Current recycling technologies for fiber-reinforced composites fall short of a circular economy. This work recycled and remanufactured composites made of recycled carbon fiber and polyphenylene sulfide (PPS) using compression and injection molding. A size-exclusive sieving technique retained fiber length, reducing variability in remanufactured composite properties. Strength reductions were attributed to microstructural inhomogeneity and poor fiber dispersion. Future recycling must focus on fiber length retention and improved dispersion for viable composite remanufacturing.

Publisher

npj Materials Sustainability

Published On

Mar 11, 2024

Authors

Philip R. Barnett, Nadim S. Hmeidat, Bingqian Zheng, Dayakar Penumadu

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