Effects of hydrogen-rich environment on the tensile properties of thermoplastics for liquid hydrogen service
Effects of hydrogen-rich environment on the tensile properties of thermoplastics for liquid hydrogen service
Thermoplastic polymers can provide solutions for many liquid hydrogen storage and distribution applications, especially for weight sensitive applications. However, it remains unclear whether thermoplastics can operateconsistently at cryogenic temperatures particularly after long term exposure to hydrogen-rich environments. This study measured the mechanical behaviours of three thermoplastics at room and cryogenic temperatures (77 K and 20 K), andcompared the results of hydrogen charged and uncharged samples. All materials showed increased ultimate tensile strengths and reduced ductility at cryogenic temperatures compared to results at room temperature. The amount of hydrogen absorbed may have a positive correlation to their molecular weight. However, the method of hydrogen charging applied in this work appear to have marginal effects on the thermoplastics. Further chemical examinations is in progress to reinforce.
Wang, Zhenzhou
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Bailey, Wendell
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Song, Junyao
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Dapp, Charlotte
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Tian, Jiarui
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Bavykin, Dmitry
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Yang, Yifeng
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July 2024
Wang, Zhenzhou
794c41fe-f5da-4da4-8f1c-c7beb06f87eb
Bailey, Wendell
c356b2e3-a783-4b4c-8c7b-521696d3b37c
Song, Junyao
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Dapp, Charlotte
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Tian, Jiarui
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Bavykin, Dmitry
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Yang, Yifeng
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Wang, Zhenzhou, Bailey, Wendell, Song, Junyao, Dapp, Charlotte, Tian, Jiarui, Bavykin, Dmitry and Yang, Yifeng
(2024)
Effects of hydrogen-rich environment on the tensile properties of thermoplastics for liquid hydrogen service.
29th International Cryogenic Engineering Conference, International Cryogenic Materials Conference 2024, , Geneva, Switzerland.
22 - 26 Jul 2024.
6 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Thermoplastic polymers can provide solutions for many liquid hydrogen storage and distribution applications, especially for weight sensitive applications. However, it remains unclear whether thermoplastics can operateconsistently at cryogenic temperatures particularly after long term exposure to hydrogen-rich environments. This study measured the mechanical behaviours of three thermoplastics at room and cryogenic temperatures (77 K and 20 K), andcompared the results of hydrogen charged and uncharged samples. All materials showed increased ultimate tensile strengths and reduced ductility at cryogenic temperatures compared to results at room temperature. The amount of hydrogen absorbed may have a positive correlation to their molecular weight. However, the method of hydrogen charging applied in this work appear to have marginal effects on the thermoplastics. Further chemical examinations is in progress to reinforce.
Text
Zhenzhou Wang - ICEC29-ICMC2024 - Final Version
- Author's Original
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Published date: July 2024
Venue - Dates:
29th International Cryogenic Engineering Conference, International Cryogenic Materials Conference 2024, , Geneva, Switzerland, 2024-07-22 - 2024-07-26
Identifiers
Local EPrints ID: 497349
URI: http://eprints.soton.ac.uk/id/eprint/497349
PURE UUID: 3ad0fc47-3f06-48a7-bf9d-fc256648d64a
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Date deposited: 21 Jan 2025 17:30
Last modified: 22 Aug 2025 01:37
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Contributors
Author:
Zhenzhou Wang
Author:
Junyao Song
Author:
Charlotte Dapp
Author:
Jiarui Tian
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