Nanoscale Simulations of Wear and Viscoelasticity of a Semi-Crystalline Polymer
| dc.contributor.author | Vacher, Robin Sam | |
| dc.contributor.author | de Wijn, Astrid S. | |
| dc.date.accessioned | 2021-01-20T10:34:07Z | |
| dc.date.available | 2021-01-20T10:34:07Z | |
| dc.date.created | 2021-01-18T18:46:57Z | |
| dc.date.issued | 2020 | |
| dc.identifier.issn | 1023-8883 | |
| dc.identifier.uri | https://hdl.handle.net/11250/2723867 | |
| dc.description.abstract | We investigate the underlying tribological mechanisms and running-in process of a semi-crystalline polymer using molecular-dynamics simulations. We subject a slab of simulated polyvinyl alcohol to a sliding contact asperity resembling a friction force microscope tip. We study the viscoelastic response of the polymer to the sliding and show both plastic and elastic contributions to the deformation, with their relative strength dependent on the temperature. As expected, the elastic deformation penetrates deeper into the surface than the plastic deformation. Directly under the tip, the polymer has a tendency to co-axially align and form a layered structure. Over time, the plastic deformation on and near the surface builds up, the friction decreases, and the polymers in the top layer align with each other in the sliding direction (conditioning). | en_US |
| dc.language.iso | eng | en_US |
| dc.publisher | Springer | en_US |
| dc.rights | Navngivelse 4.0 Internasjonal | * |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
| dc.title | Nanoscale Simulations of Wear and Viscoelasticity of a Semi-Crystalline Polymer | en_US |
| dc.type | Peer reviewed | en_US |
| dc.type | Journal article | en_US |
| dc.description.version | publishedVersion | en_US |
| dc.source.journal | Tribology letter | en_US |
| dc.identifier.doi | 10.1007/s11249-020-01369-8 | |
| dc.identifier.cristin | 1873669 | |
| dc.description.localcode | Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. | en_US |
| cristin.ispublished | true | |
| cristin.fulltext | original | |
| cristin.qualitycode | 1 |
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