Title: Carbon Nanofiber Z-Threaded Carbon Fiber Reinforced Polymer Composite (ZT-CFRP) Laminate Parts Produced Using a Magnetic Compaction Force Assisted Additive Manufacturing (MCFA-AM) Technique

Authors: Bikash Ranabhat, Sebastian Kirmse, Michael Johnson and Kuang-Ting Hsiao

DOI: 10.33599/nasampe/s.20.0256

Abstract: The main challenge in AM processes of continuous fiber-reinforced polymer (FRP) composites is the lack of matured technology, advanced polymers and nanocomposites that match the performance and fabrication requirements. This research addressed the fabrication technology and materials concerns. The research presented herein developed a fast-curing porous carbon nanofiber z-threaded CFRP (P-ZT-CFRP) prepreg tape using a radial flow alignment technique (RFA) and fabricated the P-ZT-CFRP laminate using MCFA-AM. For comparison, two porous CFRP (P-CFRP) laminates cured by the Out-Of-Autoclave Vacuum-Bag-Only (OOA-VBO) method were also manufactured. The interlaminar shear strengths (ILSS) for the two P-CFRPs were 38.5 MPa (with 50 % acetone in resin to create voids) and 43.8 MPa (with 20 % acetone) respectively. The P-ZT-CFRP (with 20 % acetone) manufactured with the MCFA-AM (without vacuum) produced the ILSS of 54.5 MPa. The 0.5 wt% CNF z-threads in resin provided an effective structural integrity enhancement in the porous laminate. The specific ILSS per weight of the P-ZT-CFRP was 83% and 87% of that from the control CFRP manufactured by OOA-VBO (75.5 MPa) and the regular CFRP produced by MCFA-AM (70.5MPa), respectively; which indicated the interesting potentials to tailor lightweight and high-strength CFRPs using AM and nanomaterials. Future improvement directions were discussed.

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Conference: SAMPE 2020 | Virtual Series

Publication Date: 2020/06/01

SKU: TP20-0000000256

Pages: 15

Price: FREE