Journal
FIBERS AND POLYMERS
Volume 14, Issue 3, Pages 453-458Publisher
KOREAN FIBER SOC
DOI: 10.1007/s12221-013-0453-4
Keywords
Nickel-copper composite coating; Metalation swelling; Aramid fiber; Electroless plating; Conductive fiber
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Funding
- Nano-tech Foundation of Shanghai [0852nm00600]
- Innovative Foundation of Shanghai University [SHUCX101003]
- Shanghai Leading Academic Discipline Project [s30107]
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Conductive aramid fiber with nickel-copper composite coating is prepared by consecutive steps of metalation swelling, sensitization, activation, nickel electroless deposition, and copper electroless deposition, respectively. The metalation swelling of aramid fiber makes the follow-up sensitization and activation feasible. The as-prepared samples are characterized by SEM, TEM, XRD and XPS. After metalation swelling, the aramid fibers look like cotton fibers with numerous nano-scale pits of 50-300 nm in diameter. Pd metal as nuclei for Ni crystal growth with the size of 10 +/- 5 nm is originated from Pd2+, which can be reduced to Pd-0 by Sn2+. The Ni-Cu composite coating of 1-A mu m thickness has polycrystalline structure. And the electrical resistance of conductive Ni-Cu aramid fiber is 0.035 Omega/cm. The synthesis mechanism of the conductive aramid fiber with Ni-Cu composite coating is given.
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