| 摘要 |
<p>A composite porous ion-exchanger having ion-exchange groups uniformly distributed therein and formed in a continuous air bubble structure having macro pores communicating with each other and meso pores of a specific average diameter in the walls of macro pores, comprising a porous polymer of 1 to 50 ml/g in all pore volume and a dense layer covered on at least one surface of the porous polymer and integrally formed with the porous polymer, whereby a member functioning as an ion exchange film is formed integrally with a member functioning as an ion- exchanger, the pore volume and specific surface of an ion-exchanger portion are increased remarkably and, when the ion-exchanger is used as the deionization module of an electric deionized water generating device, a power consumption can be improved.</p> |
