PMID- 35228634
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220305
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 12
IP  - 1
DP  - 2022 Feb 28
TI  - Characterization technique of gases permeation properties in polymers: H(2), He, 
      N(2) and Ar gas.
PG  - 3328
LID - 10.1038/s41598-022-07321-1 [doi]
LID - 3328
AB  - We demonstrate a simple experimental technology for characterizing the gas 
      permeation properties of H(2), He, N(2) and Ar absorbed in polymers. This is 
      based on the volumetric measurement of released gas and an upgraded diffusion 
      analysis program after high-pressure exposure. Three channel measurements of 
      sorption content of gases emitted from polymers after decompression are 
      simultaneously conducted, and then, the gas uptake/diffusivity as a function of 
      exposed pressure are determined in nitrile butadiene rubber (NBR), ethylene 
      propylene diene monomer (EPDM) rubbers, low-density polyethylene (LDPE) and 
      high-density polyethylene (HDPE), which are used for gas sealing materials under 
      high pressure. The pressure-dependent gas transport behaviors of the four gases 
      are presented and compared. Gas sorption follows Henry's law up to 9 MPa, while 
      pressure-dependent diffusion behavior is not observed below 6 MPa. The magnitude 
      of the diffusivity of the four gases decreases in the order 
      D(He) > D(H2) > D(Ar) > D(N2) in all polymers, closely related to the kinetic 
      diameter of the gas molecules. The dependence of gas species on solubility is in 
      contrast to that on diffusivity. The linear correlation between logarithmic 
      solubility and critical temperature of the gas molecule was newly observed.
CI  - (c) 2022. The Author(s).
FAU - Jung, Jae Kap
AU  - Jung JK
AD  - Team of Hydrogen Energy Materials Research, Korea Research Institute of Standards 
      and Science, Daejeon, 34113, Korea. jkjung@kriss.re.kr.
AD  - Team of Hydrogen Energy Materials Research, Korea Research Institute of Standards 
      and Science, Daejeon, 34113, Korea. jkjung@kriss.re.kr.
FAU - Lee, Ji Hun
AU  - Lee JH
AD  - Team of Hydrogen Energy Materials Research, Korea Research Institute of Standards 
      and Science, Daejeon, 34113, Korea.
FAU - Jang, Jin Sub
AU  - Jang JS
AD  - Team of Hydrogen Energy Materials Research, Korea Research Institute of Standards 
      and Science, Daejeon, 34113, Korea.
FAU - Chung, Nak Kwan
AU  - Chung NK
AD  - Team of Hydrogen Energy Materials Research, Korea Research Institute of Standards 
      and Science, Daejeon, 34113, Korea.
FAU - Park, Chang Young
AU  - Park CY
AD  - Department of Physics and Research Institute of Natural Science, Gyeongsang 
      National University, Jinju, 52828, Korea.
FAU - Baek, Un Bong
AU  - Baek UB
AD  - Team of Hydrogen Energy Materials Research, Korea Research Institute of Standards 
      and Science, Daejeon, 34113, Korea.
FAU - Nahm, Seung Hoon
AU  - Nahm SH
AD  - Team of Hydrogen Energy Materials Research, Korea Research Institute of Standards 
      and Science, Daejeon, 34113, Korea.
LA  - eng
PT  - Journal Article
DEP - 20220228
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
SB  - IM
PMC - PMC8885926
COIS- The authors declare no competing interests.
EDAT- 2022/03/02 06:00
MHDA- 2022/03/02 06:01
PMCR- 2022/02/28
CRDT- 2022/03/01 05:56
PHST- 2021/11/12 00:00 [received]
PHST- 2022/02/09 00:00 [accepted]
PHST- 2022/03/01 05:56 [entrez]
PHST- 2022/03/02 06:00 [pubmed]
PHST- 2022/03/02 06:01 [medline]
PHST- 2022/02/28 00:00 [pmc-release]
AID - 10.1038/s41598-022-07321-1 [pii]
AID - 7321 [pii]
AID - 10.1038/s41598-022-07321-1 [doi]
PST - epublish
SO  - Sci Rep. 2022 Feb 28;12(1):3328. doi: 10.1038/s41598-022-07321-1.