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Volume 41 Issue 8
Aug.  2015
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Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(8): 1499-1504.
YI Min, SHEN Zhigang, LIU Lei, et al. Application of BN nanosheets as atom-oxygen corrosion resistant fillers[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(8): 1499-1504. doi: 10.13700/j.bh.1001-5965.2014.0598(in Chinese)
Citation: YI Min, SHEN Zhigang, LIU Lei, et al. Application of BN nanosheets as atom-oxygen corrosion resistant fillers[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(8): 1499-1504. doi: 10.13700/j.bh.1001-5965.2014.0598(in Chinese)
shu

Application of BN nanosheets as atom-oxygen corrosion resistant fillers

doi: 10.13700/j.bh.1001-5965.2014.0598
  • 1.

    School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • 2. School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 26 Sep 2014
  • Publish Date: 20 Aug 2015
    Abstract
  • The application of boron nitride nanosheets (BNNS) as fillers to enhance the polymer's atom-oxygen corrosion resistance was investigated. Stable BNNS dispersions in polyvinylalcohol (PVA) solutions were prepared by liquid-phase exfoliation. By using a centrifugation-based size-select route, BNNS with three kinds of different lateral sizes were obtained. Their average area was about 21.4, 4.1, 1.0 μm2, respectively. The PVA/BNNS composite films were prepared by casting the PVA/BNNS dispersions. Atom-oxygen corrosion experiments indicate that all these BNNSs can enhance the atom-oxygen corrosion resistance of PVA. An addition of 1.0wt% BNNS (21.4 μm2) can lead to a reduction of 87% in PVA's mass loss. It is suggested that the bonding and barrier effects between atom oxygen and BNNS are responsible for the enhanced atom-oxygen corrosion resistance.

     

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