TY - GEN
T1 - Understanding mechanism of PTFE distribution in fibrous porous media
AU - Inoue, G.
AU - Ishibe, N.
AU - Matsukuma, Y.
AU - Minemoto, M.
PY - 2013
Y1 - 2013
N2 - In fibrous porous media, some polymer materials are often used to control of surface property such as making hydrophobic surface and to make another function such as electrolyte. However, all of these polymers are not always distribute in porous media uniformly. The micro pores are blocked with it and it leads to the degradation of mass transfer and heat conduction. In this study, we focused coating and drying process of PTFE treatment to PEFC gas diffusion layer (GDL). By numerical analysis of evaporation and phase change of polymer in GDL, the effect of drying process on polymer distribution and porous property was examined. As a result, the PTFE distribution in the direction of through plane could be controlled by drying condition. These tendencies of experiment and calculation were almost equal to each other qualitatively.
AB - In fibrous porous media, some polymer materials are often used to control of surface property such as making hydrophobic surface and to make another function such as electrolyte. However, all of these polymers are not always distribute in porous media uniformly. The micro pores are blocked with it and it leads to the degradation of mass transfer and heat conduction. In this study, we focused coating and drying process of PTFE treatment to PEFC gas diffusion layer (GDL). By numerical analysis of evaporation and phase change of polymer in GDL, the effect of drying process on polymer distribution and porous property was examined. As a result, the PTFE distribution in the direction of through plane could be controlled by drying condition. These tendencies of experiment and calculation were almost equal to each other qualitatively.
UR - http://www.scopus.com/inward/record.url?scp=84885738739&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84885738739&partnerID=8YFLogxK
U2 - 10.1149/05002.0461ecst
DO - 10.1149/05002.0461ecst
M3 - Conference contribution
AN - SCOPUS:84885738739
SN - 9781607683506
T3 - ECS Transactions
SP - 461
EP - 468
BT - Polymer Electrolyte Fuel Cells 12, PEFC 2012
PB - Electrochemical Society Inc.
T2 - 12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting
Y2 - 7 October 2012 through 12 October 2012
ER -