Browse > Article
http://dx.doi.org/10.7316/KHNES.2022.33.3.219

A Study on the Changes in Mechanical Properties by the Hydration of Polymer Electrolyte Membrane  

EO, JUNWOO (Graduate School of Mechanical Engineering, Kumoh National Institute of Technology)
JUNG, YOUNGGUAN (Department of Mechanical Engineering, Kumoh National Institute of Technology)
SEO, YOUNGJIN (Department of Mechanical Engineering, Kumoh National Institute of Technology)
LEE, DONGBAE (Department of Industrial Installation, Jinju Campus of Korea Polytechnics)
HWANG, CHULMIN (Natural Energy Lab. Co.,Ltd)
KIM, SEUNGHWAN (Graduate School of Mechanical Engineering, Kumoh National Institute of Technology)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.33, no.3, 2022 , pp. 219-225 More about this Journal
Abstract
In this study, as one part of the studies on the mechanical properties of the polymer electrolyte membrane, a study was conducted on the change in the mechanical properties due to hydration before and after aging of the polymer electrolyte membrane. The mechanical properties of the polymer electrolyte membrane changes due to hydration were confirmed through tensile tests of hydrated and non-hydrated Nafion 117. As results of this study, non-hydrated membrane showed higher mechanical properties than hydrated thing in the elastic region and some plastic regions. But, it was confirmed that hydrated membrane exhibited higher mechanical properties than non-hydrated thing in the large plastic region. Hydrated membrane has a lower glass transition temperature than non-hydrated thing due to the role of water as a plasticizer. In addition, the number of ion aggregates decreases, but the size increases, and the hydrated Nafion 117 is thought to have different mechanical properties from that of the non-hydrated thing due to the characteristic that the internal attraction is strengthened.
Keywords
Polymer electrolyte membrane; Nafion; Tensile; Crystalline; Amorphous; Aging; Hydration; Non-hydration; Ion cluster;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 M. C. Yoo, B. J. Chang, J. H. Kim, S. B. Lee, and Y. T. Lee, "Sulfonated perfluorocyclobutyl biphenylene polymer electrolyte membranes for fuel cells", Membrane Journal, Vol. 15, No. 4, 2005, pp, 355-362. Retrieved from https://scienceon.kisti.re.kr/commons/util/originalView.do?cn=JAKO200511722531612&oCn=JAKO200511722531612&dbt=JAKO&journal=NJOU00023047.
2 H. K. Lee and K. S. Han, "Effect of surfacemodified carbon fiber on the mechanical properties of carbon/epoxy composite for bipolar plate of PEMFC", Trans Korean Hydrogen New Energy Soc, Vol. 31, No. 1, 2020, pp. 49-56, doi: https://doi.org/10.7316/KHNES.2020.31.1.49.   DOI
3 W. K. Lee and H. K. Lee, "Mechanical property of Nafion membrane incorporated with Pd nanocatalyst and the performance of PEMFC", Trans Korean Hydrogen New Energy Soc, Vol. 27, No. 3, 2016, pp. 270-275, doi: http://dx.doi.org/10.7316/KHNES.2016.27.3.270.   DOI
4 H. J. Kwon, H. N. Kim, and J. H. Kang, "Improvement of mechanical properties of IPMC through developing a degree of dispersion of SWCNT/Nafion composite", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 10, No. 5, 2011, pp. 131-136. Retrieved from https://www.koreascience.or.kr/article/JAKO201108163160954.page.
5 K. A. Mauritz and R. B. Moore, "State of understanding of Nafion", Chem. Rev., Vol. 104, No. 10, 2004, pp. 4535-4586, doi: https://doi.org/10.1021/cr0207123.   DOI
6 D. Choi, Y. S. Lee, K. H. Yoon, S. W. Kim, and D. H. Ha, "Mechanical and flame retardant properties of SAN coated PC/PTFE composite", Polym. Korea, Vol. 44, No. 6, 2020, pp. 747-752, doi: https://doi.org/10.7317/pk.2020.44.6.747.   DOI
7 S. H. Kim, J. W. Eo, Y. J. Seo, C. M. Hwang, and Y. G. Jung, "A study on the change of mechanical property according to the aging of polymer electrolyte membrane", Trans Korean Hydrogen New Energy Soc, Vol. 33, No. 2, 2022, pp. 176-182, doi: https://doi.org/10.7316/KHNES.2022.33.2.176.   DOI
8 C. S. Brazel and S. L. Rosen, "Fundamental principles of polymeric materials", 3rd ed. Wiley, USA, 2012.
9 M. S. Shin, M. S. Kang, and J. S. Park, "Preparation and characterizations of sulfonated graphene oxide (sGO)/Nafion composite membranes for polymer electrolyte fuel cells", Membrane Journal, Vol. 27, No. 1, 2017, pp 53-59, doi: https://doi.org/10.14579/MEMBRANE_JOURNAL.2017.27.1.53.   DOI
10 K. Park, J. H. Chun, D. W. Choi, and S. H. Kim, "A characterization study on NafionⓇ/ZrO2-TiO2 composite membranes for PEMFC operation at high temperature and low humidity", Trans Korean Hydrogen New Energy Soc, Vol. 22, No. 1, 2011, pp 60-68. Retrieved from http://tjournal.hydrogen.or.kr/upload/papers/742676272_0b19dd3f_KHNES.Vol.222CNo.108.pdf.   DOI
11 E. R. Cho and K. C. Shin, "Polymer engineering", DREAMPLUS, Korea, 2015.