Almansoori, A.M.M., Masters, R., Abrams, K. et al. (4 more authors) (2018) Surface modification of the laser sintering standard powder polyamide 12 by plasma treatments. Plasma Processes and Polymers, 15 (7). 1800032. ISSN 1612-8850
Abstract
Polyamide 12 (PA12) powder was exposed for up to 3 h to low pressure air plasma treatment (LP‐PT) and several minutes by two different atmospheric pressure plasma jets (APPJ) i.e., kINPen (K‐APPJ) and Hairline (H‐APPJ). The chemical and physical changes resulting from LP‐PT were observed by a combination of Scanning Electron Microscopy (SEM), Hot Stage Microscopy (HSM) and Fourier transform infrared spectroscopy (FTIR), which demonstrated significant changes between the plasma treated and untreated PA12 powders. PA12 exposed to LP‐PT showed an increase in wettability, was relatively porous, and possessed a higher density, which resulted from the surface functionalization and materials removal during the plasma exposure. However, it showed poor melt behavior under heating conditions typical for Laser Sintering. In contrast, brief PJ treatments demonstrated similar changes in porosity, but crucially, retained the favorable melt characteristics of PA12 powder.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 The Authors. Plasma Processes and Polymers. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
Keywords: | Atmospheric pressure plasma treatment; laser sintering; scanning electron microscopy; surface modification; wettability |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 15 May 2018 13:34 |
Last Modified: | 06 Nov 2018 14:35 |
Published Version: | https://doi.org/10.1002/ppap.201800032 |
Status: | Published |
Publisher: | Wiley-VCH Verlag |
Refereed: | Yes |
Identification Number: | 10.1002/ppap.201800032 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:130838 |
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