High strength hollow carbon fibers with both porous and solid shell were fabricated by a combination of coaxial electrospinning and emulsion electrospinning. In the coaxial electrospinning, a Polyacrylonitrile (PAN)/ Poly(methyl methacrylate) (PMMA)/Dimethylformamide (DMF) emulsion was used to form the porous shell and a PAN/DMF solution was used to form the solid shell. Fiber surface and cross-section morphology was studied by scanning electron microscope (SEM). Mechanical property of the hollow fibers was characterized by single fiber tensile test using microelectromechanical system devices (MEMS). The effect of pores on mechanical performance of the hollow fibers was studied. Hollow carbon fibers with porous and solid shell both showed a brittle fracture behavior. The modulus and strength of the hollow carbon fibers with solid shell was ∼ 76.1 GPa and 2.04 GPa, respectively. For the hollow carbon fibers with porous shell, the porosity led to ∼ 35 % reduction in strength. The porous fibers with the mediocre strength measured here open new horizons for combining structural functionality with energy storage, in so-called structural batteries.
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ASME 2018 13th International Manufacturing Science and Engineering Conference
June 18–22, 2018
College Station, Texas, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-5136-4
PROCEEDINGS PAPER
Processing-Mechanical Property Relationship of Hollow and Porous Carbon Fibers Fabricated by Coaxial Electrospinning Available to Purchase
Yijun Chen,
Yijun Chen
Texas A&M University, College Station, TX
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Jizhe Cai,
Jizhe Cai
Texas A&M University, College Station, TX
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James G. Boyd,
James G. Boyd
Texas A&M University, College Station, TX
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Mohammad Naraghi
Mohammad Naraghi
Texas A&M University, College Station, TX
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Yijun Chen
Texas A&M University, College Station, TX
Jizhe Cai
Texas A&M University, College Station, TX
James G. Boyd
Texas A&M University, College Station, TX
Mohammad Naraghi
Texas A&M University, College Station, TX
Paper No:
MSEC2018-6598, V002T04A016; 4 pages
Published Online:
September 24, 2018
Citation
Chen, Y, Cai, J, Boyd, JG, & Naraghi, M. "Processing-Mechanical Property Relationship of Hollow and Porous Carbon Fibers Fabricated by Coaxial Electrospinning." Proceedings of the ASME 2018 13th International Manufacturing Science and Engineering Conference. Volume 2: Materials; Joint MSEC-NAMRC-Manufacturing USA. College Station, Texas, USA. June 18–22, 2018. V002T04A016. ASME. https://doi.org/10.1115/MSEC2018-6598
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