| 摘要 |
PURPOSE:To inexpensively produce the title anode having high electrical conductivity and excellent adhesion to an ion exchange membrane by mixing a fluororesin into the powder of lead oxide, forming the mixture into sheet, heating and baking the sheet, further oxidizing the sheet, and then plating the sheet with beta-type lead dioxide. CONSTITUTION:The powder of inexpensive and soft lead oxide having excellent electrode performance is mixed with a fluororesin such as tetrafluoroethylene resin, and the mixture is formed into sheet. In this case, about 50-95wt.%, based on the fluororesin, lead dioxide is preferably mixed. The formed sheet is heated and baked at about 360-390 deg.C, and further drawn, if necessary, into thinner sheet to obtain a sheet-like electrode substrate. The electrode substrate is oxidized by potassium persulfate, etc., and the lower lead oxide formed by the heating and baking is converted into lead dioxide having excellent electrical conductivity. The surface of the electrode substrate is then plated with beta-type lead dioxide. By this method, the anode for an ion exchange membrane having high conductivity and excellent adhesion to an ion exchange membrane and capable of promoting the formation of ozone is obtained at a low cost. |
