| 摘要 |
PURPOSE:To improve the sealing performance with strong fusing force by performing preliminary processing for dispersion adhering fluororesin onto the sealing face of an electrode member then applying fluororesin film onto the sealing face and thermally pressing. CONSTITUTION:In a preliminary process, fluororesin dispersion is applied onto a sealing face at the end of a gas dispersion electrode member 4 then dried and burnt under the temperature near 350 deg.C to remove surfactant contained in the dispersion thus to adhere the fluororesin onto the surface of the electrode member 4 while dispersing. Then an electrode catalyst layer 5 is bonded onto the surface of the electrode member 4 at the matrix side and a fluororesin film 8 is applied onto the sealing face thereafter proper surface pressure and heating temperature are applied to thermally fuse the film 8 to the electrode member thus to complete the sealing process. |
