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The impact of solvent characteristics on performance and process stability of printed carbon resistive materials

Bruce Philip, Eifion Jewell Orcid Logo, David Worsley Orcid Logo

Journal of Coatings Technology and Research, Volume: 13, Issue: 5, Pages: 911 - 920

Swansea University Authors: Eifion Jewell Orcid Logo, David Worsley Orcid Logo

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DOI (Published version): 10.1007/s11998-016-9802-8

Abstract

Carbon conductive pastes deposited by screen printing are used in many commercial applications including sensors, PCB, batteries, and PV, and as such represent an important value-added coating. An experimental investigation was carried out into the role of the solvent on the drying characteristics,...

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Published in: Journal of Coatings Technology and Research
ISSN: 1547-0091 1935-3804
Published: 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa29665
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first_indexed 2016-08-30T03:45:41Z
last_indexed 2020-06-25T18:39:51Z
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spelling 2020-06-25T15:14:06.5082456 v2 29665 2016-08-29 The impact of solvent characteristics on performance and process stability of printed carbon resistive materials 13dc152c178d51abfe0634445b0acf07 0000-0002-6894-2251 Eifion Jewell Eifion Jewell true false c426b1c1b0123d7057c1b969083cea69 0000-0002-9956-6228 David Worsley David Worsley true false 2016-08-29 MECH Carbon conductive pastes deposited by screen printing are used in many commercial applications including sensors, PCB, batteries, and PV, and as such represent an important value-added coating. An experimental investigation was carried out into the role of the solvent on the drying characteristics, conductivity, and process consistency in screen printed carbon pastes. Four materials with solvent boiling points between 166 and 219°C were deposited at film thickness between 6 and 16 μm, and the sheet resistance and film thickness were measured after successive passes through an industrial dryer operating with an air temperature of 155°C. Sheet resistances of 14 Ω/sq. were obtained with the thicker films while thinner films produced a sheet resistance of 46 Ω/sq. Thinner films achieved a stable resistivity within a 2.5-min residence time, while the thicker films required a residence time in excess of 12.5 min to achieve a stable resistivity. As well as prolonging drying times, the higher boiling point increased the resistivity of the cured film. It is postulated that the lower resistance of the faster drying materials is a result of film stressing increasing inter particle contact. Process models indicate that multiple thin layers are a more efficient means of manufacture for the process parameters examined. Journal Article Journal of Coatings Technology and Research 13 5 911 920 1547-0091 1935-3804 Carbon graphite paste, Drying, Resistivity 30 9 2016 2016-09-30 10.1007/s11998-016-9802-8 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2020-06-25T15:14:06.5082456 2016-08-29T21:06:07.2760138 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Bruce Philip 1 Eifion Jewell 0000-0002-6894-2251 2 David Worsley 0000-0002-9956-6228 3 0029665-97201641402PM.pdf philip2016.pdf 2016-09-07T16:14:02.8670000 Output 1034740 application/pdf Version of Record true 2016-07-09T00:00:00.0000000 This article is distributed under the terms of the Creative Commons Attribution 4.0 International License true http://creativecommons.org/licenses/by/4.0/
title The impact of solvent characteristics on performance and process stability of printed carbon resistive materials
spellingShingle The impact of solvent characteristics on performance and process stability of printed carbon resistive materials
Eifion Jewell
David Worsley
title_short The impact of solvent characteristics on performance and process stability of printed carbon resistive materials
title_full The impact of solvent characteristics on performance and process stability of printed carbon resistive materials
title_fullStr The impact of solvent characteristics on performance and process stability of printed carbon resistive materials
title_full_unstemmed The impact of solvent characteristics on performance and process stability of printed carbon resistive materials
title_sort The impact of solvent characteristics on performance and process stability of printed carbon resistive materials
author_id_str_mv 13dc152c178d51abfe0634445b0acf07
c426b1c1b0123d7057c1b969083cea69
author_id_fullname_str_mv 13dc152c178d51abfe0634445b0acf07_***_Eifion Jewell
c426b1c1b0123d7057c1b969083cea69_***_David Worsley
author Eifion Jewell
David Worsley
author2 Bruce Philip
Eifion Jewell
David Worsley
format Journal article
container_title Journal of Coatings Technology and Research
container_volume 13
container_issue 5
container_start_page 911
publishDate 2016
institution Swansea University
issn 1547-0091
1935-3804
doi_str_mv 10.1007/s11998-016-9802-8
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 1
active_str 0
description Carbon conductive pastes deposited by screen printing are used in many commercial applications including sensors, PCB, batteries, and PV, and as such represent an important value-added coating. An experimental investigation was carried out into the role of the solvent on the drying characteristics, conductivity, and process consistency in screen printed carbon pastes. Four materials with solvent boiling points between 166 and 219°C were deposited at film thickness between 6 and 16 μm, and the sheet resistance and film thickness were measured after successive passes through an industrial dryer operating with an air temperature of 155°C. Sheet resistances of 14 Ω/sq. were obtained with the thicker films while thinner films produced a sheet resistance of 46 Ω/sq. Thinner films achieved a stable resistivity within a 2.5-min residence time, while the thicker films required a residence time in excess of 12.5 min to achieve a stable resistivity. As well as prolonging drying times, the higher boiling point increased the resistivity of the cured film. It is postulated that the lower resistance of the faster drying materials is a result of film stressing increasing inter particle contact. Process models indicate that multiple thin layers are a more efficient means of manufacture for the process parameters examined.
published_date 2016-09-30T03:36:05Z
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score 10.998093

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