Optimization of a continuous hot embossing process for fabrication of micropyramid structures in thermoplastic sheets

Haponow, L., Kettle, J. and Allsop, J. (2021) Optimization of a continuous hot embossing process for fabrication of micropyramid structures in thermoplastic sheets. Journal of Vacuum Science and Technology B, 39(1), 012203. (doi: 10.1116/6.0000551)

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Abstract

Reported is the manufacture and optimization of inverted micropyramid cavity structures into thermoplastic sheets using roll-to-roll (R2R) embossing. To manufacture the master, an ultraprecision diamond machining method was applied to create seamless surface structures into a copper-coated hot embossing roller. Using the hot embossing process, the roller features were successfully transferred to 2 mm thick polymethyl methacrylate (PMMA) sheets. Optimization of the R2R control process variables was conducted using Taguchi's numerical methods, which showed the importance of the roller temperature for a successful pattern transfer. The work presents a novel fabrication technique that allows microstructures to be manufactured into thick PMMA sheets in a continuous process.

Item Type:Articles
Additional Information:The authors gratefully acknowledge the financial support provided by the Knowledge Economy Skills Scholarships (KESS 2, Ref: BUK2121).
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Kettle, Dr Jeff
Authors: Haponow, L., Kettle, J., and Allsop, J.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Journal of Vacuum Science and Technology B
Publisher:American Institute of Physics
ISSN:2166-2746
ISSN (Online):2166-2754
Published Online:15 December 2020
Copyright Holders:Copyright © 2020 The Authors
First Published:First published in Journal of Vacuum Science and Technology B 39(1):012203
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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