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Kang H, Bae J, Lee J, Yun Y, Jeon S, Chung N, Jung J, Baek U, Lee J, Kim Y, Choi M. The Synergistic Effect of Carbon Black/Carbon Nanotube Hybrid Fillers on the Physical and Mechanical Properties of EPDM Composites after Exposure to High-Pressure Hydrogen Gas. Polymers (Basel) 2024; 16:1065. [PMID: 38674985 PMCID: PMC11054514 DOI: 10.3390/polym16081065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/19/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
This study investigated the synergistic effect of carbon black/multi-wall carbon nanotube (CB/MWCNT) hybrid fillers on the physical and mechanical properties of Ethylene propylene diene rubber (EPDM) composites after exposure to high-pressure hydrogen gas. The EPDM/CB/CNT hybrid composites were prepared by using the EPDM/MWCNT master batch (MB) with 10 phr CNTs to enhance the dispersion of CNTs in hybrid composites. The investigation included a detailed analysis of cure characteristics, crosslink density, Payne effect, mechanical properties, and hydrogen permeation properties. After exposure to 96.3 MPa hydrogen gas, the hydrogen uptake and the change in volume and mechanical properties of the composites were assessed. We found that as the MWCNT volume fraction in fillers increased, the crosslink density, filler-filler interaction, and modulus of hybrid composites increased. The hydrogen uptake and the solubility of the composites decreased with an increasing MWCNT volume fraction in fillers. Moreover, after exposure to hydrogen gas, the change in volume and mechanical properties exhibited a diminishing trend with a higher MWCNT volume fraction. We conclude that the hybridization of CB and CNTs formed strong filler-filler networks in hybrid composites, consequently reinforcing the EPDM composites and enhancing the barrier properties of hydrogen gas.
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Affiliation(s)
- Hyunmin Kang
- Elastic Material Research Group, Korea Institute of Materials Convergence Technology, Busan 47154, Republic of Korea; (H.K.); (J.B.); (J.L.); (Y.Y.)
| | - Jongwoo Bae
- Elastic Material Research Group, Korea Institute of Materials Convergence Technology, Busan 47154, Republic of Korea; (H.K.); (J.B.); (J.L.); (Y.Y.)
| | - Jinhyok Lee
- Elastic Material Research Group, Korea Institute of Materials Convergence Technology, Busan 47154, Republic of Korea; (H.K.); (J.B.); (J.L.); (Y.Y.)
| | - Yumi Yun
- Elastic Material Research Group, Korea Institute of Materials Convergence Technology, Busan 47154, Republic of Korea; (H.K.); (J.B.); (J.L.); (Y.Y.)
| | - Sangkoo Jeon
- Hydrogen Energy Group, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea; (S.J.); (N.C.); (J.J.); (U.B.); (J.L.); (Y.K.)
| | - Nakkwan Chung
- Hydrogen Energy Group, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea; (S.J.); (N.C.); (J.J.); (U.B.); (J.L.); (Y.K.)
| | - Jaekap Jung
- Hydrogen Energy Group, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea; (S.J.); (N.C.); (J.J.); (U.B.); (J.L.); (Y.K.)
| | - Unbong Baek
- Hydrogen Energy Group, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea; (S.J.); (N.C.); (J.J.); (U.B.); (J.L.); (Y.K.)
| | - Jihun Lee
- Hydrogen Energy Group, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea; (S.J.); (N.C.); (J.J.); (U.B.); (J.L.); (Y.K.)
| | - Yewon Kim
- Hydrogen Energy Group, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea; (S.J.); (N.C.); (J.J.); (U.B.); (J.L.); (Y.K.)
| | - Myungchan Choi
- Elastic Material Research Group, Korea Institute of Materials Convergence Technology, Busan 47154, Republic of Korea; (H.K.); (J.B.); (J.L.); (Y.Y.)
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