Polymer materials are frequently used in vacuum systems despite their relatively high outgassing rates, with water being the primary component of this outgassing. In this paper, we propose a novel modeling method for predicting water outgassing from polymers. This model incorporates both the adsorption and desorption dynamics of water molecules on the material’s surface, offering a more comprehensive understanding of outgassing behavior. Experimental measurements were conducted by throughput method on two polymer materials commonly used in satellite systems to validate the proposed model, specifically carbon fiber-polymeric composite materials and polyimide cable materials. A temperature-variable simulation was also conducted to verify the applicability of the model. The results demonstrate the accuracy and applicability of the method, providing guidance for optimizing material selection and vacuum system performance in different applications.
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January 2025
Research Article|
January 02 2025
Modeling of water outgassing from polymers incorporating surface adsorption and desorption
Wenbing Wang
;
Wenbing Wang
(Data curation, Investigation, Methodology, Software, Validation)
1
School of Mechanical Engineering, Hefei University of Technology
, Hefei 230009, China
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Hailin Bi
;
Hailin Bi
a)
(Conceptualization, Methodology, Supervision, Validation)
1
School of Mechanical Engineering, Hefei University of Technology
, Hefei 230009, China
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Yuhao Cui;
Yuhao Cui
(Resources, Visualization)
2
Beijing Institute of Spacecraft Environment Engineering
, Beijing 100094, China
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Junru Zhang;
Junru Zhang
(Data curation, Investigation)
1
School of Mechanical Engineering, Hefei University of Technology
, Hefei 230009, China
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a)
Electronic mail: [email protected]
b)
Electronic mail: [email protected]
J. Vac. Sci. Technol. B 43, 014201 (2025)
Article history
Received:
October 29 2024
Accepted:
December 09 2024
Citation
Wenbing Wang, Hailin Bi, Yuhao Cui, Junru Zhang, Xudi Wang; Modeling of water outgassing from polymers incorporating surface adsorption and desorption. J. Vac. Sci. Technol. B 1 January 2025; 43 (1): 014201. https://doi.org/10.1116/6.0004175
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