SORBENT COATING FLUID, SORBENT-SUPPORTING METAL PLATE OBTAINED BY APPLYING SORBENT COATING FLUID, AND HEAT EXCHANGER HAVING SORBENT-SUPPORTING METAL PLATE

摘要

In the metal plate supporting the sorbent using the organic polymer-based sorbent, since the sorbent has the property of swelling by including water, the sorbent coating film is formed on the metal plate by using a solvent containing a large amount of water There is a problem that cracks are generated in the sorbent coating film formed by shrinkage of the sorbent at the time of drying. Furthermore, the adhesion to the metal plate is also poor, and there is a problem that the sorption agent coating film is peeled off under conditions such as watering. DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-described conventional circumstances, and an object of the present invention is to provide a coating agent for a sorbent agent which does not cause cracking or peeling, and a metal plate coated with the coating solution. An organic polymeric sorbent particle comprising a carboxyl group and an organic polymer having a crosslinking structure, a cationic polymer adhered to the surface of the sorbent, a binder resin, an alcohol and water.