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http://dx.doi.org/10.7234/composres.2018.31.4.171

Fabrication of Microstructures with Nanocomposites by Capillary Effect  

Han, Soo-Ho (Department of Mechanical Engineering, Andong National University)
Hwang, Hui-Yun (Department of Mechanical Engineering, Andong National University)
Publication Information
Composites Research / v.31, no.4, 2018 , pp. 171-176 More about this Journal
Abstract
We proposed new and easy fabrication method of micro-nano hierarchical structures for synthetic dry adhesives and conducted feasibility tests of alignment characteristics of nano-materials in the microstructures by capillary effect. Candidates of fabrication conditions were selected based on the degree of cure and viscosity of mixtures of multiwall carbon nanotubes (MWCNTs) and polydimethylsiloxane (PDMS), which were measured with respect to the fabrication conditions. Scanning electron microscopy images of cross sections of MWCNT-PDMS microstructures were analyzed. MWCNT alignment in microstructures was better when fabrication temperature and degree of cure at fabricating start were lower, but areal density of MWCNTs was little affected by fabrication conditions.
Keywords
Capillary effect; Micro-nano hierarchical structures; Alignment; Multiwall carbon nanotubes; Polydimethylsiloxane;
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