| abstract |
The present invention provides a kind of hydrophilic coating and preparation method thereof, compound asymmetric heat exchange film and its application.Hydrophilic coating includes the component of following parts by weight: 3-6 parts of film forming matter, 1-2.5 parts of furtherance membrane substance, 0.5-1.5 parts of mass transfer substance and 8-15 parts of aqueous solvent.Film forming matter and furtherance membrane substance can make hydrophilic coating form the film of uniformly continuous when coating in membrane surface, make it have good flatness and the compound firmness between basement membrane；Make hydrophilic coating that there is very high mass-transfer efficiency by the way that mass transfer substance is added, the transmitting of heat is realized using the phase transformation occurred during mass transfer, to make hydrophilic coating that there is very high heat exchange efficiency；The hydrophilic coating does not add any organic solvent using water as solvent, so that the production of hydrophilic coating is safer, it is a kind of environmentally friendly hydrophilic coating. |