| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_고분자 |
| 제목 |
Polybenzimidazole composite membranes containing benzimidazole group modified graphene oxide (ImGO) for high-temperature proton exchange membrane |
| 초록 |
Polymer composite membranes based on polybenzimidazole (PBI) and modified graphene oxide (ImGO) are developed for high-temperature proton exchange membrane. ImGO is prepared by reaction between o-phenylenediamine with graphene oxide (GO). ImGO shows superior compatibility with PBI matrix, resulting in improved physicochemical properties and higher proton conductivity compared with pristine PBI membrane. The PBI composite membrane having 0.5 wt.% of ImGO as a filler shows increased tensile strength with minimized sacrificing of elongation at break value (219.2 MPa, 28.8%) compared with pristine PBI (181.0 MPa, 34.8%). At 150 oC under anhydrous condition, proton conductivity of this membrane is 77.52 mS cm-1 which is 46.9% larger than that of pristine PBI.
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| 저자 |
김혜진1, 김정환1, 김기현2, 한주성1, 이현희1, 이종찬1
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| 소속 |
1서울대, 2경상대 |
| 키워드 |
Polymer composite; polybenzimidazole; graphene oxide; high-temperature proton exchange membrane; proton conductivity
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| E-Mail |
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