Changes in the Optical Properties of Rubber Exposed to High-Pressure Hydrogen Using Pulsed Terahertz Waves
In this study, we investigated how high-temperature, high-pressure hydrogen affects the optical properties of three kinds of sealing rubber (chloroprene rubber, ethylene propylene diene monomer, and acrylonitrile butadiene rubber) using pulsed terahertz waves. The optical properties of the rubber sa...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/23/4530 |
| _version_ | 1797399628401868800 |
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| author | Mun-Young Hwang Hyun Chul Lee Hyeok-Jae Yang Dae-Hyun Han |
| author_facet | Mun-Young Hwang Hyun Chul Lee Hyeok-Jae Yang Dae-Hyun Han |
| author_sort | Mun-Young Hwang |
| collection | DOAJ |
| description | In this study, we investigated how high-temperature, high-pressure hydrogen affects the optical properties of three kinds of sealing rubber (chloroprene rubber, ethylene propylene diene monomer, and acrylonitrile butadiene rubber) using pulsed terahertz waves. The optical properties of the rubber samples were analyzed before and after exposure to hydrogen (80 °C and 200 bar) for 72 h. The results showed that the terahertz waves had a shorter time delay and a lower signal intensity for all rubber types. The exposure response intensity, refractive index, and absorption rate also changed in the frequency domain. Raman and Fourier transform infrared spectroscopy were used for comparison, and a few peak shifts were observed. However, the Raman spectra had low signal quality, and the laser damaged the specimen. The study demonstrates that terahertz waves can be used as a non-contact non-destructive testing technique to evaluate the changes in sealing rubbers after hydrogen exposure. |
| first_indexed | 2024-03-09T01:43:48Z |
| format | Article |
| id | doaj.art-3650886113d44ae0b44d052d868cf1b7 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T01:43:48Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-3650886113d44ae0b44d052d868cf1b72023-12-08T15:24:18ZengMDPI AGPolymers2073-43602023-11-011523453010.3390/polym15234530Changes in the Optical Properties of Rubber Exposed to High-Pressure Hydrogen Using Pulsed Terahertz WavesMun-Young Hwang0Hyun Chul Lee1Hyeok-Jae Yang2Dae-Hyun Han3Multi-Material Research Center, Korea Automotive Technology Institute, 55 Jingoksandanjungang-ro, Gwangsan-gu, Gwangju 62465, Republic of KoreaMulti-Material Research Center, Korea Automotive Technology Institute, 55 Jingoksandanjungang-ro, Gwangsan-gu, Gwangju 62465, Republic of KoreaDepartment of Carbon Convergence Engineering, Wonkwang University, 460 Iskander-ro, Iksan-si 54538, Republic of KoreaDepartment of Carbon Convergence Engineering, Wonkwang University, 460 Iskander-ro, Iksan-si 54538, Republic of KoreaIn this study, we investigated how high-temperature, high-pressure hydrogen affects the optical properties of three kinds of sealing rubber (chloroprene rubber, ethylene propylene diene monomer, and acrylonitrile butadiene rubber) using pulsed terahertz waves. The optical properties of the rubber samples were analyzed before and after exposure to hydrogen (80 °C and 200 bar) for 72 h. The results showed that the terahertz waves had a shorter time delay and a lower signal intensity for all rubber types. The exposure response intensity, refractive index, and absorption rate also changed in the frequency domain. Raman and Fourier transform infrared spectroscopy were used for comparison, and a few peak shifts were observed. However, the Raman spectra had low signal quality, and the laser damaged the specimen. The study demonstrates that terahertz waves can be used as a non-contact non-destructive testing technique to evaluate the changes in sealing rubbers after hydrogen exposure.https://www.mdpi.com/2073-4360/15/23/4530sealing rubberhigh-pressure hydrogenterahertz wavesoptical propertiesnon-destructive testing |
| spellingShingle | Mun-Young Hwang Hyun Chul Lee Hyeok-Jae Yang Dae-Hyun Han Changes in the Optical Properties of Rubber Exposed to High-Pressure Hydrogen Using Pulsed Terahertz Waves Polymers sealing rubber high-pressure hydrogen terahertz waves optical properties non-destructive testing |
| title | Changes in the Optical Properties of Rubber Exposed to High-Pressure Hydrogen Using Pulsed Terahertz Waves |
| title_full | Changes in the Optical Properties of Rubber Exposed to High-Pressure Hydrogen Using Pulsed Terahertz Waves |
| title_fullStr | Changes in the Optical Properties of Rubber Exposed to High-Pressure Hydrogen Using Pulsed Terahertz Waves |
| title_full_unstemmed | Changes in the Optical Properties of Rubber Exposed to High-Pressure Hydrogen Using Pulsed Terahertz Waves |
| title_short | Changes in the Optical Properties of Rubber Exposed to High-Pressure Hydrogen Using Pulsed Terahertz Waves |
| title_sort | changes in the optical properties of rubber exposed to high pressure hydrogen using pulsed terahertz waves |
| topic | sealing rubber high-pressure hydrogen terahertz waves optical properties non-destructive testing |
| url | https://www.mdpi.com/2073-4360/15/23/4530 |
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