Get This Paper

Closed Loop Recycling of CFRP Into Highly Aligned High Performance Short Fiber Composites Using the TUFF Process


Title: Closed Loop Recycling of CFRP Into Highly Aligned High Performance Short Fiber Composites Using the TUFF Process

Authors: Dirk Heider, John Tierney, Joseph Deitzel, Munetaka Kubota, John Thiravong, Verena Gargitter, Winona Burris, John Morris, Nicholas Shevchenko, Shridhar Yarlagadda, and John W. Gillespie, Jr.

DOI: 10.33599/nasampe/s.19.1607

Abstract: Current Carbon (CF) Fiber Reinforced Polymers (CFRP) recycling strategies reclaim continuous CF in powder or short fiber form. The material is added to molding compounds as a filler or short fiber reinforcement having random or semi-aligned orientation to produce composites with low fiber volume fraction and reduced mechanical properties (down cycling). Down cycling reduces the value chain limiting the recycling opportunities of CFRPs. This paper combines a short fiber alignment process (TuFF) with 1) the use of low-cost, short CFs obtained from recycled and waste stream, and 2) recycling of TuFF material using thermolysis to produce highly aligned short fiber composites with mechanical properties approaching continuous fiber levels. The closed-loop process recycles the CFRP, reclaims the fiber content, aligns the fibers using the TuFF process and produces new CFRP components with high property retention. The method reduces material and part cost and allows true recycling and reuse of CF components into high-performance parts.

References: 1. Market Outlook: Surplus in CF's future?, 2. Recycled carbon fiber: Its time has come, recycled-carbon-fiber-its-time-has-come- 3. Janney M. et al., “Fabrication of Chopped Fiber Preforms by the 3-DEP Process”, Composites and Polycon 2007, American Composites Manufacturers Association, Tampa, Florida, USA. 4. Shridhar Yarlagadda, Joseph Deitzel, Dirk Heider, John Tierney, and John W. Gillespie Jr., “Tailorable Universal Feedstock for Forming (TuFF): Overview and Performance”, SAMPE Conference Proceedings. Charlotte, NC, May 20-23, 2019. 5. National Center for Manufacturing Sciences. (2017, April). High-performance computing studies (Report No. DOT HS 812 404). Washington, DC: National Highway Traffic Safety Administration., 6. 7. Cousins, D. S., Suzuki, Y., Murray, R. E., Samaniuk, J. R., & Stebner, A. P. (2019). Recycling glass fiber thermoplastic composites from wind turbine blades. Journal of Cleaner Production, 209, 1252-1263. 8. J.M. Deitzel, M. Kubota, J.W. Gillespie Jr , Z.R. Hinton, L. Thursch, N. Alvarez, G. Palmese, J.J. Fallon, M. Bortner, R. Zhang, R.M. Joseph, T. Schumaker, J. Riffle, S. Lukubira, S Kanhere, M.C. Tang, A. Ogale. “Surface Treatment of TuFF Pitch-Based Carbon Fiber for Adhesion Promotion in High Tg Thermoplastic Composites”. SAMPE Technical Conference Proceedings. Charlotte, NC, May 20-23, 2019. Society for the Advancement of Material and Process Engineering. 9. Tierney, J.J., Gillespie J.W. Jr., “Development of an XML Framework for Materials, Processing and Testing of Composites”, SAMPE Conf. Baltimore (2015).

Conference: SAMPE 2019 - Charlotte, NC

Publication Date: 2019/05/20

SKU: TP19--1607

Pages: 11

Price: FREE

Get This Paper