Skip navigation

Fabrication of hollow polymer microstructures using dielectric and capillary forces

Fabrication of hollow polymer microstructures using dielectric and capillary forces

Tonry, Catherine E. H., Patel, Mayur K., Yu, Weixing, Desmulliez, Marc P. Y. and Bailey, Christopher ORCID: 0000-0002-9438-3879 (2019) Fabrication of hollow polymer microstructures using dielectric and capillary forces. Microsystem Technologies. pp. 1-8. ISSN 0946-7076 (Print), 1432-1858 (Online) (doi:https://doi.org/10.1007/s00542-019-04409-z)

[img]
Preview
PDF (Publisher's PDF - Open Access)
23397 TONRY_Fabrication_of_Hollow_Polymer_Microstructures_(OA)_2019.pdf - Published Version
Available under License Creative Commons Attribution.

Download (1MB) | Preview
[img]
Preview
PDF (Author Accepted Manuscript)
23397 TONRY_Fabrication_of_Hollow_Polymer_Microstructures_(AAM)_2019.pdf - Accepted Version
Available under License Creative Commons Attribution.

Download (934kB) | Preview

Abstract

Electric Field Assisted Capillarity is a novel one-step process suitable for the fabrication of hollow polymer microstructures. The process, demonstrated to work experimentally on a microscale using Polydimethylsiloxane (PDMS), makes use of both the electrohydrodynamics of polymers subject to an applied voltage and the capillary force on the polymers caused by a low contact angle on a heavily wetted surface. Results of two-dimensional numerical simulations of the process are discussed in this paper for the special case of production of microfluidic channels. The paper investigates the effects of altering key parameters including the contact angle with the top mask, the polymer thickness and air gap, the permittivity of the polymer, the applied voltage and geometrical variations on the final morphology of the microstructure. The results from these simulations demonstrate that the capillary force caused by the contact angle has the greatest effect on the final shape of the polymer microstructures.

Item Type: Article
Additional Information: © The Author(s) 2019. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Uncontrolled Keywords: Microstructures, Microfluidics, Electrostatics, Microfabrication
Subjects: Q Science > QA Mathematics
Faculty / Department / Research Group: Faculty of Architecture, Computing & Humanities
Faculty of Architecture, Computing & Humanities > Centre for Numerical Modelling & Process Analysis (CNMPA)
Faculty of Architecture, Computing & Humanities > Centre for Numerical Modelling & Process Analysis (CNMPA) > Computational Mechanics & Reliability Group (CMRG)
Faculty of Architecture, Computing & Humanities > Department of Mathematical Sciences
Last Modified: 07 Apr 2019 00:32
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/23397

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics