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The Use of Single-Sided NMR to Study Moisture Behaviour in an Activated Carbon Fibre/Phenolic Composite
Applied Magnetic Resonance, Volume: 52, Issue: 2, Pages: 99 - 115
Swansea University Authors:
Sue Alston , Cris Arnold
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DOI (Published version): 10.1007/s00723-020-01273-3
Abstract
Nuclear Magnetic Resonance (NMR) has been shown to be a useful technique to study the form and content of water in polymer composites. Composites using activated carbon fibres with phenolic resin have complex water absorption behaviour which would benefit from such investigation; however, the presen...
Published in: | Applied Magnetic Resonance |
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ISSN: | 0937-9347 1613-7507 |
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Springer Science and Business Media LLC
2021
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URI: | https://cronfa.swan.ac.uk/Record/cronfa55332 |
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2021-04-01T14:47:52.7280136 v2 55332 2020-10-05 The Use of Single-Sided NMR to Study Moisture Behaviour in an Activated Carbon Fibre/Phenolic Composite 031a3fc4df0b3c95331bd0fcef5cf708 0000-0003-0496-3296 Sue Alston Sue Alston true false 9f36b5062fc7093b5cbfc547cf452709 0000-0002-8937-1355 Cris Arnold Cris Arnold true false 2020-10-05 EEN Nuclear Magnetic Resonance (NMR) has been shown to be a useful technique to study the form and content of water in polymer composites. Composites using activated carbon fibres with phenolic resin have complex water absorption behaviour which would benefit from such investigation; however, the presence of the conductive fibres can make NMR problematic. In this study, single-sided NMR has been successfully used on such material by developing a method for sample-to-sample compensation for the effect of conductivity. Transverse relaxation curves showed water to be primarily in two states in the resin, corresponding to "bound" and "mobile" molecules. In addition, two much less bound states were identified in the composite, associated firstly with water adsorbed on to the fibre surface and secondly with clusters of water molecules moving more freely within the fibre pores. Journal Article Applied Magnetic Resonance 52 2 99 115 Springer Science and Business Media LLC 0937-9347 1613-7507 1 2 2021 2021-02-01 10.1007/s00723-020-01273-3 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2021-04-01T14:47:52.7280136 2020-10-05T16:31:03.9873197 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - General Engineering Sue Alston 0000-0003-0496-3296 1 Cris Arnold 0000-0002-8937-1355 2 Martin Swan 3 Corinne Stone 4 55332__18436__7284a9d93b0f48638e2dc8ec1b5ebd8a.pdf 55332 (2).pdf 2020-10-16T16:55:52.2212544 Output 1461379 application/pdf Version of Record true This article is licensed under a Creative Commons Attribution 4.0 International License true eng http://creativecommons.org/licenses/by/4.0/ |
title |
The Use of Single-Sided NMR to Study Moisture Behaviour in an Activated Carbon Fibre/Phenolic Composite |
spellingShingle |
The Use of Single-Sided NMR to Study Moisture Behaviour in an Activated Carbon Fibre/Phenolic Composite Sue Alston Cris Arnold |
title_short |
The Use of Single-Sided NMR to Study Moisture Behaviour in an Activated Carbon Fibre/Phenolic Composite |
title_full |
The Use of Single-Sided NMR to Study Moisture Behaviour in an Activated Carbon Fibre/Phenolic Composite |
title_fullStr |
The Use of Single-Sided NMR to Study Moisture Behaviour in an Activated Carbon Fibre/Phenolic Composite |
title_full_unstemmed |
The Use of Single-Sided NMR to Study Moisture Behaviour in an Activated Carbon Fibre/Phenolic Composite |
title_sort |
The Use of Single-Sided NMR to Study Moisture Behaviour in an Activated Carbon Fibre/Phenolic Composite |
author_id_str_mv |
031a3fc4df0b3c95331bd0fcef5cf708 9f36b5062fc7093b5cbfc547cf452709 |
author_id_fullname_str_mv |
031a3fc4df0b3c95331bd0fcef5cf708_***_Sue Alston 9f36b5062fc7093b5cbfc547cf452709_***_Cris Arnold |
author |
Sue Alston Cris Arnold |
author2 |
Sue Alston Cris Arnold Martin Swan Corinne Stone |
format |
Journal article |
container_title |
Applied Magnetic Resonance |
container_volume |
52 |
container_issue |
2 |
container_start_page |
99 |
publishDate |
2021 |
institution |
Swansea University |
issn |
0937-9347 1613-7507 |
doi_str_mv |
10.1007/s00723-020-01273-3 |
publisher |
Springer Science and Business Media LLC |
college_str |
Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
department_str |
School of Aerospace, Civil, Electrical, General and Mechanical Engineering - General Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - General Engineering |
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description |
Nuclear Magnetic Resonance (NMR) has been shown to be a useful technique to study the form and content of water in polymer composites. Composites using activated carbon fibres with phenolic resin have complex water absorption behaviour which would benefit from such investigation; however, the presence of the conductive fibres can make NMR problematic. In this study, single-sided NMR has been successfully used on such material by developing a method for sample-to-sample compensation for the effect of conductivity. Transverse relaxation curves showed water to be primarily in two states in the resin, corresponding to "bound" and "mobile" molecules. In addition, two much less bound states were identified in the composite, associated firstly with water adsorbed on to the fibre surface and secondly with clusters of water molecules moving more freely within the fibre pores. |
published_date |
2021-02-01T04:09:27Z |
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1763753661984407552 |
score |
11.021648 |