TY - JOUR
T1 - Evaluation of the change in chemical structure of acrylonitrile butadiene rubber after high-pressure hydrogen exposure
AU - Fujiwara, Hirotada
AU - Yamabe, Junichiro
AU - Nishimura, Shin
N1 - Funding Information:
This research was supported by the NEDO project “Fundamental Research Project on Advanced Hydrogen Science (2006–2012).” Many thanks are due to Midori Watanabe and Miki Rika for their kind assistance with the NMR measurement. The authors also thank Prof. Tadashi Narita and Prof. Hiroshi Hamana (Saitama Institute of Technology) for their generous guidance for the NMR measurements.
PY - 2012/5
Y1 - 2012/5
N2 - The influence of high-pressure hydrogen on the chemical structure of organic materials is essential for designing suitable materials for the safe and efficient use of hydrogen. In this paper, we clarify the cause and mechanism of "explosive failure by decompression" (XDF) in rubber used under high-pressure hydrogen circumstances, and the chemical structure of acrylonitrile butadiene rubber (NBR), which is commonly used for O-rings, was analyzed after exposure to hydrogen at 100 MPa. Solid-state nuclear magnetic resonance (NMR) and liquid-phase NMR for 1H and 13C, as well as infrared and Raman spectroscopy, were employed for the evaluation. The results show no evidence of structural changes in NBR such as hydrogenation of the olefinic bonds in butadiene or of the cyano groups in acrylonitrile.
AB - The influence of high-pressure hydrogen on the chemical structure of organic materials is essential for designing suitable materials for the safe and efficient use of hydrogen. In this paper, we clarify the cause and mechanism of "explosive failure by decompression" (XDF) in rubber used under high-pressure hydrogen circumstances, and the chemical structure of acrylonitrile butadiene rubber (NBR), which is commonly used for O-rings, was analyzed after exposure to hydrogen at 100 MPa. Solid-state nuclear magnetic resonance (NMR) and liquid-phase NMR for 1H and 13C, as well as infrared and Raman spectroscopy, were employed for the evaluation. The results show no evidence of structural changes in NBR such as hydrogenation of the olefinic bonds in butadiene or of the cyano groups in acrylonitrile.
UR - http://www.scopus.com/inward/record.url?scp=84860355918&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860355918&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2012.02.084
DO - 10.1016/j.ijhydene.2012.02.084
M3 - Article
AN - SCOPUS:84860355918
SN - 0360-3199
VL - 37
SP - 8729
EP - 8733
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 10
ER -
