Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 4, Issue 1, Pages 131-136Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am201153b
Keywords
carbon nanotubes; graphene nanoribbons; Kevlar fiber; spray coating; conductive fiber
Funding
- AFOSR [FA9550-09-1-0581]
- Lockheed Martin LANCER IV Program
- ONR MURI [00006766, N00014-09-1-1066]
- AFRL through Universal Technology Corporation [FA8650-05-D-5807]
- Advanced Energy Consortium (Baker Hughes, Halliburton, Conoco Phillips, bp, OXY, Marathon, Shell, Total, Petrobras, Schlumberger)
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Conductive carbon material-coated Kevlar fibers were fabricated through layer-by-layer spray coating. Polyurethane was used as the interlayer between the Kevlar fiber and carbon materials to bind the carbon materials to the Kevlar fiber. Strongly adhering single-walled carbon nanotube coatings yielded a durable conductivity of 65 S/cm without significant mechanical degradation. In addition, the properties remained stable after bending or water washing cycles. The coated fibers were analyzed using scanning electron microcopy and a knot test. The as-produced fiber had a knot efficiency of 23%, which is more than four times higher than that of carbon fibers. The spray-coating of graphene nanoribbons onto Kevlar fibers was also investigated. These flexible coated-Kevlar fibers have the potential to be used for conductive wires in wearable electronics and battery-heated armors.
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