FIELD: chemistry.
SUBSTANCE: membrane is a continuous belt made from a mixture of an ion-exchange polymer and hydrophobic thermoplastic polymer binder, on which a textile net based on polypropylene, polyether or polyamide is layered on one or two sides. The method of making the membrane involves extrusion of a film and subsequently moving said film, together with the reinforced textile net and protective separation layers lying on both sides of the sandwich, between two heated and mutually pressed cylinders revolving at the same speed on a circle. The ion-exchange membrane then undergoes natural or forced cooling at the output of the cylinders.
EFFECT: obtaining a heterogeneous ion-exchange membrane which is virtually unbounded in the plane and design of an efficient method and device for making said membrane.
14 cl, 2 dwg
