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Fabrication of nickel micromesh sheets and evaluation of their water-repellent and water-proof abilities

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Abstract

Nickel micromesh sheets were designed and fabricated and their water-repellent and water-proof abilities were characterized. The network-type microstructures of the micromesh sheets functioned as micro-protrusions of lotus leaves, which allowed the sheets to superhydrophobic. The micromesh enabled the material waves, including sound and light waves, to pass through the microholes, but repelled water. Because of the effects of the micromesh and plasma polymerized fluorocarbon (PPFC) coating, the contact angle of the micromesh sheets was drastically jumped up from 63° of the non-coated nickel flat film to 140° of the PPFC-coated nickel micromesh, which modified the nickel sheet from hydrophilic to superhydrophobic. The narrower lattice width in the micromesh was more effective at enhancing the water-repellency. On the other hand, the narrow lattice width weakened the water-proof ability. Reducing the hole size and increasing the lattice width of the micromesh are necessary to improve the water-proof ability.

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Abbreviations

γ:

surface tension of the liquid

θ:

contact angle

e:

hole width

f:

lattice width

h:

mesh thickness

ϕ:

pore fraction

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Authors and Affiliations

  1. Graduate School of Mechanical Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan, South Korea, 609-735

    Sang Min Lee, Dong Joon Oh, Im Deok Jung, Kong Myeong Bae, Phill Gu Jung & Jong Soo Ko

  2. IT Convergence & Component Lab., ETRI, Daejeon, South Korea, 305-700

    Kwang Hyo Chung

  3. Biosensing Systems Lab., Corporate R&D Group, Sharp Corporation, Nara, Japan, 632-8567

    Seung-Jin Cho

Authors
  1. Sang Min Lee
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  2. Dong Joon Oh
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  3. Im Deok Jung
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  4. Kong Myeong Bae
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  8. Jong Soo Ko
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Correspondence to Jong Soo Ko.

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Lee, S.M., Oh, D.J., Jung, I.D. et al. Fabrication of nickel micromesh sheets and evaluation of their water-repellent and water-proof abilities. Int. J. Precis. Eng. Manuf. 10, 161–166 (2009). https://doi.org/10.1007/s12541-009-0062-8

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  • DOI: https://doi.org/10.1007/s12541-009-0062-8

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