Mechanical Aging Test and Sealing Performance of Thermoplastic Vulcanizate as Sealing Gasket in Automotive Fuel Cell Applications

被引：12
作者：
Im, Hyungu [1 ]
Jeoung, Sunkyoung [1 ]
机构：
[1] Korea Automot Technol Inst, Mat Technol R&D Div, Cheonan Si 31214, South Korea
来源：
POLYMERS | 2023年 / 15卷 / 08期
关键词：
mechanical ageing; sealing performance; fuel cell; thermoplastic vulcanizate; EPDM; TPV; EPDM; RUBBER; HYDROGEN;
D O I：
10.3390/polym15081872
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Ethylene-propylene-diene monomer (EPDM) rubber is one of the rapidly developing synthetic rubbers for use as a gasket material in proton exchange membrane (PEM) fuel cell applications. Despite its excellent elastic and sealing properties, EPDM faces challenges such as molding processability and recycling ability. To overcome these challenges, thermoplastic vulcanizate (TPV), which comprises vulcanized EPDM in polypropylene matrix, was investigated as a gasket material for PEM fuel cell applications. TPV showed better long-term stability in terms of tension and compression set behaviors under accelerated aging conditions than EPDM. Additionally, TPV exhibited significantly higher crosslinking density and surface hardness than EPDM, regardless of the test temperature and aging time. TPV and EPDM showed similar leakage rates for the entire range of test inlet pressure values, regardless of the applied temperature. Therefore, we can conclude that TPV exhibits a similar sealing capability with more stable mechanical properties compared with commercialized EPDM gaskets in terms of He leakage performance.
引用
收藏
页数：15
相关论文
共 36 条
[11]   Effects of peroxide and phenolic cure systems on characteristics of the filled ethylene-propylene-diene monomer rubber (EPDM) [J].
Imanifar, Marzieh ;
Movahed, Saeed Ostad ;
Ahmadpour, Ali .
JOURNAL OF APPLIED POLYMER SCIENCE, 2018, 135 (21)
[12]   Compressive stress-thermo oxidative ageing behaviour and mechanism of EPDM rubber gaskets for sealing resilience assessment [J].
Li, Chengjie ;
Ding, Yuqiao ;
Yang, Zheng ;
Yuan, Zun ;
Ye, Lin .
POLYMER TESTING, 2020, 84
[13]   Construction of sacrificial bonds and hybrid networks in EPDM rubber towards mechanical performance enhancement [J].
Li, Chengjie ;
Wang, Yujie ;
Yuan, Zun ;
Ye, Lin .
APPLIED SURFACE SCIENCE, 2019, 484 :616-627
[14]   Dynamic mechanical characteristics of five elastomeric gasket materials aged in a simulated and an accelerated PEM fuel cell environment [J].
Lin, Chih-Wei ;
Chien, Chi-Hui ;
Tan, Jinzhu ;
Chao, Yuh-Jin ;
Van Zee, J. W. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (11) :6756-6767
[15]   Chemical degradation of five elastomeric seal materials in a simulated and an accelerated PEM fuel cell environment [J].
Lin, Chih-Wei ;
Chien, Chi-Hui ;
Tan, Jinzhu ;
Chao, Yuh J. ;
Van Zee, J. W. .
JOURNAL OF POWER SOURCES, 2011, 196 (04) :1955-1966
[16]   Effect of crosslinked structure on the chemical degradation of EPDM rubber in an acidic environment [J].
Liu, Qingkun ;
Li, Jia ;
Jiang, Yunchao ;
Cong, Chuanbo ;
Xu, Lixin ;
Zhang, Ying ;
Meng, Xiaoyu ;
Zhou, Qiong .
POLYMER DEGRADATION AND STABILITY, 2021, 185
[17]   A high-performance temperature sensitive TPV/CB elastomeric composite with balanced electrical and mechanical properties via PF-induced dynamic vulcanization [J].
Ma, Li-Feng ;
Bao, Rui-Ying ;
Dou, Rui ;
Liu, Zheng-Ying ;
Yang, Wei ;
Xie, Bang-Hu ;
Yang, Ming-Bo ;
Fu, Qiang .
JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (40) :16989-16996
[18]   Dynamic vulcanisation of EPDM/PE-based thermoplastic vulcanisates studied along the extruder axis [J].
Machado, A ;
van Duin, M .
POLYMER, 2005, 46 (17) :6575-6586
[19]   The thermal oxidation of hydrogenated acrylonitrile-co-butadiene rubber from ambient to 150 °C [J].
Mengistu, Tesfaldet ;
Pazur, Richard J. .
POLYMER DEGRADATION AND STABILITY, 2021, 188
[20]   In Situ and Operando Characterization of Proton Exchange Membrane Fuel Cells [J].
Meyer, Quentin ;
Zeng, Yachao ;
Zhao, Chuan .
ADVANCED MATERIALS, 2019, 31 (40)
1234