Description

• Title:
  Superhydrophobic Surface by Replication of Laser Micromachined Pattern in Epoxy/Alumina Nanoparticle Composite
• Creator:
  Psarski, Maciej;
  Marczak, Jacek;
  Grobelny, Jaroslaw;
  Celichowski, Grzegorz
• Contributor:
  Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236 Lodz, Poland
• Description:
  Superhydrophobic surfaces were obtained by superposition of microstructure—defined by replication of laser micromachined masters, with nanostructure—created by durable epoxy/γ-Al₂O₃ nanoparticle composite, used for replication. Hierarchical surface topography thus obtained consisted of hexagonally spaced microcavities and nanoparticle agglomerates, exposed on the replica surface by radio frequency (RF) air plasma etching. Surface topography was further enhanced by rims around the microcavity edges, resulting from nanosecond laser micromachining defects in aluminum masters. Subsequent wet chemical hydrophobization with 1H,1H,2H,2H-perfluorotetradecyltriethoxysilane (PFTDTES) provided superhydrophobic behavior in replicas with a microcavity spacing of 30 μm, as indicated by a water contact angle of 160° and a sliding angle of 8°. The preparation method is relatively simple, inexpensive, and potentially scalable.;
  This work was supported by the National Science Centre of Poland through projects nos. 2011/03/N/ST8/05879 and UMO-2012/05/B/ST8/02876. The authors are grateful to Professor Weimin Liu and Professor Feng Zhou of the Lanzhou Institute of Chemical Physics, Chinese Academy of Science, for making the laser micromachining, JEOL SEM, and Drop Shape Analysis equipment available.
• Object availability:
  free access
• Rights:
  Uznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska;
  http://creativecommons.org/licenses/by-nc-nd/3.0/pl ;
  Copyright © 2014 Maciej Psarski et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
• Date:
  2015.01.19;
  2014.04.24
• Type:
  Article
• Language:
  English
• Format:
  application/pdf
• Publisher:
  Hindawi Publishing Corporation
• Relation:
  Journal of Nanomaterials Volume;;Article ID 547895
• Identifier:
  Maciej Psarski, Jacek Marczak, Jarosław Grobelny, and Grzegorz Celichowski, “Superhydrophobic Surface by Replication of Laser Micromachined Pattern in Epoxy/Alumina Nanoparticle Composite,” Journal of Nanomaterials, vol. 2014, Article ID 547895, 11 pages, 2014. doi:10.1155/2014/547895;
  http://hdl.handle.net/11089/6221 ;
  1687-4129;
  10.1155/2014/547895
• Data provider:
  Repozytorium Uniwersytetu Łódzkiego
• Can I use it?:
  seek permission
• Type:
  image