Polymers 2016, 8(9), 326; https://doi.org/10.3390/polym8090326
Process, Design and Materials for Unidirectionally Tilted Polymeric Micro/Nanohairs and Their Adhesion Characteristics
1
Center for Neuroscience Imaging Research (CNIR), Institute of Basic Science, Suwon 440-746, Korea
2
School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 440-746, Korea
3
Department of Chemistry, Sungkyunkwan University (SKKU), Suwon 440-746, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Antonio Pizzi
Received: 29 June 2016 / Revised: 18 August 2016 / Accepted: 29 August 2016 / Published: 2 September 2016
(This article belongs to the Special Issue Renewable Polymeric Adhesives)
Abstract
Recent research in the field of gecko-inspired dry adhesive has focused on modifying the material and structural properties of polymer-based nanohairs. Polymers such as polystyrene (PS), high-density polyethylene (HDPE), ultraviolet curable epoxy (SU-8), polyurethane acrylate (PUA), polycarbonate (PC), and polydimethyl siloxane (PDMS) can fulfill many mechanical property requirements, are easily tunable, and can be produced via large-scale fabrication. However, the fabrication process for tilted structure remains challenging. The tilted structure is a crucial factor in high-degree conformal contact, which facilitates high adhesion, low effective modulus, and directional adhesion properties. Recent studies have attempted to create a tilted structure by applying beam irradiation, mechanical and thermal stress, and magnetic fields. This review provides a comprehensive investigation into advanced strategies for producing tilted polymeric nanostructures and their potential applications in the near future. View Full-TextKeywords:
gecko-like dry adhesive; high aspect ratio polymeric nanostructure; unidirectionally tilted structures; adhesiveless transfer printing; climbing robotics
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Im, H.S.; Kim, J.U.; Han, S.; Kim, T.-I. Process, Design and Materials for Unidirectionally Tilted Polymeric Micro/Nanohairs and Their Adhesion Characteristics. Polymers 2016, 8, 326.
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