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

摘要

[Problem] A sorbent supporting metal plate using an organic polymer sorbent has the ch aracteristic of swelling due to the sorbent containing water and therefore when mixing a coating fluid using a solvent containing a large amount of water to produce a sorbent coating film on a metal plate the problem occurs of cracking in the sorbent coating film thus formed due to contraction of the sorbent during drying. Also adhesion with the metal plate is worsened and a problem exists of the sorbent coating film separating in conditions such as submersion in water. The present invention was created on the basis of observation of the current state of this prior art the purpose of the present invention being to provide a sorbent coating fluid in which the problems of cracking and separation will not occur a metal plate obtained by applying the coating fluid and in addition a heat exchanger. [Solution] A sorbent coating fluid containing: an organic polymer sorbent particle comprising an organic polymer having a carboxyl group and a cross linked stru cture; a cationic polymer adhering to the surface of the sorbent; a binder resin; alcohol; and water.