PVC, Teflon and fluorion diaphragm were found to be better than glass as materials of diaphragm cell for their advantages in corrosion resistance as well as less electric resistance.

以聚、聚四氟和全氟离子隔膜为材料的套管式隔膜电具有隔膜水性强、电阻小、耐碱液腐蚀、耐高铁酸盐氧化等优点，与平板式隔膜电用的普通玻璃和高硼硅玻璃相比是更加理想的电化学合成高铁酸盐的电及隔膜材料。