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.

以聚氯乙烯、聚四氟乙烯和全氟离子隔膜为材料的套管式隔膜具有隔膜水性强、、碱液腐蚀、高铁酸盐氧化等优点，与平板式隔膜采用的普通玻璃和高硼硅玻璃相比是更加理想的化学合成高铁酸盐的及隔膜材料。