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Author

Park, Young-Bin
Functional Intelligent Materials Lab (FIMLab)
Research Interests
  • Composites

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Adhesion of bioinspired nanocomposite microstructure at high temperatures

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Title
Adhesion of bioinspired nanocomposite microstructure at high temperatures
Author
Seong, MinhoJeong, ChangyoonYi, HoonPark, Hyun-HaBae, Won-GyuPark, Young-BinJeong, Hoon Eui
Keywords
Adhesion; Dry adhesive; Gecko; High temperature adhesive; Nanocomposite
Issue Date
201708
Publisher
ELSEVIER SCIENCE BV
Citation
APPLIED SURFACE SCIENCE, v.413, no., pp.275 - 283
Abstract
Bioinspired dry adhesives with protruding tips offer strong, repeatable, and reversible adhesion both in normal and shear directions owing to the presence of a thin spatulate layer. However, the temperature range in which they can be used is limited because most of them are made of polymeric materials that have inherently poor thermomechanical stability. Here, we report a nanocomposite dry adhesive as a high-temperature reversible adhesive with high pull-off strength. The nanocomposite dry adhesive is fabricated by a replica-molding technique with polydimethylsiloxane (PDMS) enforced with multiwalled carbon nanotubes (MWCNTs) of different concentrations. The MWCNT/PDMS composite adhesives exhibit remarkably better thermal stability than pristine PDMS adhesives owing to the excellent thermal and mechanical properties of the MWCNTs in the composite. Furthermore, the nanocomposite adhesives have a high adhesion strength even when they are thermally annealed at high temperatures of up to 350 °C, demonstrating a strong potential as a versatile high-temperature reversible adhesive.
URI
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DOI
http://dx.doi.org/10.1016/j.apsusc.2017.04.036
ISSN
0169-4332
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