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Volume 15
Issue 12
10.3390/coatings15121473
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Study on Aging Mechanism of HNBR Vulcanizate in High Temperature Oil and Water Environment

by
Junan Lu
1,2,3,4,
Xuliang Zhang
1,2,3,4,
Jianglin Chen
1,2,3,4,
Tianguo Xia
1,2,3,4,
Jin Tao
5 and
Haobo Yu
5,*
1
R&D Center for Ultra Deep Complex Reservior Exploration and Development, Korla 841000, China
2
Engineering Research Center for Ultra-Deep Complex Reservoir Exploration and Development, Korla 841000, China
3
Xinjiang Key Laboratory of Ultra-Deep Oil and Gas, Korla 841000, China
4
Petrochina Tarim Oilfield Company, Korla 841000, China
5
Beijing Key Laboratory of Failure, Corrosion and Protection of Oil/Gas Facility Materials, China University of Petroleum (Beijing), Beijing 102200, China
*
Author to whom correspondence should be addressed.
Coatings 2025, 15(12), 1473; https://doi.org/10.3390/coatings15121473 (registering DOI)
Submission received: 6 November 2025 / Revised: 7 December 2025 / Accepted: 11 December 2025 / Published: 13 December 2025
(This article belongs to the Section Environmental Aspects in Colloid and Interface Science)
Versions Notes

Abstract

Rubber is a crucial sealing material in the petroleum industry. Due to increasingly stringent industrial development, safety performance requirements are becoming extremely high, resulting in higher oil resistance requirements for rubber. HNBR exhibits good heat resistance, high tensile strength, tear strength, and excellent wear resistance. However, a certain degree of aging will also occur in the actual service process, which will affect the service life of rubber. In order to explore the factors affecting the aging behavior of HNBR vulcanizates in an oil–water environment at 150 °C, HNBR vulcanizates were aged in an independent environment. IR (Infrared) spectroscopy analysis (FTIR), crosslinking density analysis, dynamic mechanical analysis (DMA), and scanning electron microscopy (SEM) testing were used to characterize the microstructural and morphological changes in HNBR vulcanizates before and after aging. The aging mechanism of HNBR vulcanizates in different environments was obtained. Since factors such as rubber fillers remained constant throughout the experimental process, the influence of formulation variables on aging was disregarded.
Keywords: HNBR; high temperature oil-water; aging mechanism HNBR; high temperature oil-water; aging mechanism

Share and Cite

MDPI and ACS Style

Lu, J.; Zhang, X.; Chen, J.; Xia, T.; Tao, J.; Yu, H. Study on Aging Mechanism of HNBR Vulcanizate in High Temperature Oil and Water Environment. Coatings 2025, 15, 1473. https://doi.org/10.3390/coatings15121473

AMA Style

Lu J, Zhang X, Chen J, Xia T, Tao J, Yu H. Study on Aging Mechanism of HNBR Vulcanizate in High Temperature Oil and Water Environment. Coatings. 2025; 15(12):1473. https://doi.org/10.3390/coatings15121473

Chicago/Turabian Style

Lu, Junan, Xuliang Zhang, Jianglin Chen, Tianguo Xia, Jin Tao, and Haobo Yu. 2025. "Study on Aging Mechanism of HNBR Vulcanizate in High Temperature Oil and Water Environment" Coatings 15, no. 12: 1473. https://doi.org/10.3390/coatings15121473

APA Style

Lu, J., Zhang, X., Chen, J., Xia, T., Tao, J., & Yu, H. (2025). Study on Aging Mechanism of HNBR Vulcanizate in High Temperature Oil and Water Environment. Coatings, 15(12), 1473. https://doi.org/10.3390/coatings15121473

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