| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 |
25권 1호 |
| 발표분야 |
포스터-에너지저장·변환 |
| 제목 |
Alcohol-Treated Porous PTFE Substrate for the Penetration of PTFE-Incompatible Hydrocarbon-Based Ionomer Solutions |
| 초록 |
For a mechanically stable electrolyte membrane, pore-filling membrane impregnating hydrocarbon (HC) ionomer into porous substrate is one of a strategy to increase dimensional stability and suppress the swelling of ionomer. However, incompatibility between porous substrate and HC ionomer solution is an obstacle to the manufacture of the pore-filling membrane. Here, we report a facile method for fabrication of the composite membrane using porous PTFE as substrate and poly(arylene ether sulfone) (SPAES) as a HC ionomer. Appropriate solvents for the surface treatment were determined from the contact angle analysis, and it was found that alcohol solvents effectively reduced the interfacial energy to facilitate the penetration of the SPAES/NMP solution into the pores of PTFE. Using this method, the SPAES/NMP contact angle was reduced in half, and we could fabricate mechanically tough PTFE/HC composite membranes, which were microscopically almost void-free. |
| 저자 |
홍승재1, 윤상준1, 오성근2, 홍영택1, 소순용1, 유덕만1
|
| 소속 |
1한국화학(연), 2한양대 |
| 키워드 |
PTFE composite; hydrocarbon ionomer; alcohol solvent; contact angle; surface energy
|
| E-Mail |
|
