| 摘要 |
The invention relates to a process for making ion-exchanging heterogeneous membranes resistant to high temperatures and chemical agents, based on styrene-divinyl benzene sulphonate, comprising an operation of swelling the cationic resin in water, followed by passing it to the RH form, consisting in that the cationic resin in the RH form is treated with the salts of mono-, bi- or tervalent elements, and after the washing, drying and milling operations, the so treated ion exchanger is mixed in a ratio of 1:1 with the low density polyethylene previously treated with a cyclohexane and dichloro ethane mixture, it is homogenized at the temperature of 50 C, the solvent mixture is removed by heating to 75 C, and the resulting solid mass is mixed, heated to 200 C and processed on the double-roll device, the membrane as foil resulting thereby.
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