HYDROPHILIC SURFACE TREATMENT AGENT FOR ALUMINUM-CONTAINING METAL HEAT EXCHANGERS HAVING EXCELLENT DRAINAGE

[Problem] To provide a hydrophilic surface treatment agent which can maintain favorable drainage performance, for use in hydrophilic surface treatments for heat exchangers [Solution] A hydrophilic surface treatment agent for an aluminum-containing metallic heat exchanger, which is obtained by mixing...

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Bibliographische Detailangaben
Hauptverfasser:	OSAKO, Tomohiro, AHN, Hyonsoo, NAKAYAMA, Takaomi
Format:	Patent
Sprache:	eng ; hun
Schlagworte:	ADHESIVES BLASTING CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION DYES FILLING PASTES HEAT EXCHANGE IN GENERAL HEATING INKS LIGHTING MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES USE OF MATERIALS THEREFOR WEAPONS WOODSTAINS
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Beschreibung
Zusammenfassung:	[Problem] To provide a hydrophilic surface treatment agent which can maintain favorable drainage performance, for use in hydrophilic surface treatments for heat exchangers [Solution] A hydrophilic surface treatment agent for an aluminum-containing metallic heat exchanger, which is obtained by mixing: a water-soluble resin (A) having at least one or more functional groups of an amide group, a hydroxyl group, and a carboxyl group, or a water-soluble resin (A) including, in a skeleton thereof, an amide linkage; colloidal silica (B); organo alkoxy silane and/or a hydrolysate thereof (C); a cross-linking agent (D) capable of forming cross-linkage with the water-soluble resin (A) ; and water (E), wherein the ratio {(B) + (C)}/{(A) + (B) + (C) + (D)} is 0.1 to 0.5 in terms of solid content ratio (mass ratio), and the ratio (C) / (B) is 0.5 to 4.0 in terms of solid content ratio (mass ratio).