Oil modified epoxy resin superstrong anticorrosive paint for coated aluminum foils

Abstract

An oil modified epoxy resin superstrong anticorrosive paint for coated aluminum foils, belongs to a paint coated on a metal plate, and is manufactured through a conventional paint production process. The oil modified epoxy resin superstrong anticorrosive paint is characterized by comprising the components by weight: 20-30% of oil modified epoxy resin, 5-15% of oil soluble phenolic resin, 1-4% of HMMM resin, 0.2-0.8% of boron phosphate, 0.20-0.25% of polyester-imide, and the balance of solvent prepared from butylcellosolve, propylene glycol methyl ether acetate and dibasic ester. The paint is coated on the surface of an aluminum foil coiled material to become a superstrong anticorrosive aluminum foil coiled material, and after trials and tests, compared with the prior art, the oil modified epoxy resin superstrong anticorrosive paint has the beneficial effects as follows: after slat spray test determination, the corrosion evaluation grade of the coated aluminum foil coiled material of which the corrosion area is smaller than 0.01% reaches up to over highest grade 10, but the high corrosion-resistance hydrophilic coated aluminum foil in the prior art cannot reach the corrosion-resistance highest grade 10. The oil modified epoxy resin superstrong anticorrosive paint can be used for not only heat exchange parts but also oceaneering and ship surface decoration and protection.

Description

technical field [0001] The invention belongs to coatings for coating on metal coils, in particular to an oil-modified epoxy resin super anticorrosion coating for coated aluminum foils. Background technique [0002] Prior Art Document 1 Chinese Patent Application Publication No. CN101798479A discloses a high-corrosion-resistant water-based anti-corrosion paint for a hydrophilic coated aluminum foil used on an air conditioner heat sink and a preparation and use method. The technical scheme is: "a hydrophilic High corrosion-resistant water-based anti-corrosion coating for coated aluminum foil, the composition and weight ratio of the coating are: acrylic emulsion 35-55%, amino resin 5-15%, leveling agent 0.1-1.0%, defoamer 0.1-1.0 %, antifreeze 0.1-1.0%, film-forming aid 5-14%, water-based epoxy resin 1-4%, deionized water 20-40%." [0003] Hydrophilicity, when the cohesive force of the interaction between material molecules and water molecules is greater than the cohesive forc...

AI Technical Summary

Problems solved by technology

[0004] The high-corrosion-resistant water-based anticorrosion coating for hydrophilic coated aluminum foil in prior art document 1 is obviously a hydrophilic coating, and what is coated on the aluminum foil is a hydrophilic aluminum foil coil. This hydrophilic aluminum foil is made of When heat exchange components, such as air conditioner cooling fins, are used in a cooling environment, when the surface temperature is lower than the dew point of the ambient air, the moisture in the ambient air will condense into water droplets, which not only reduces the heat exchange effect of the refrigeration system, but also increases the Energy consumption, especially when the air conditioner performs heating work in a sub-zero outdoor air environment, the heat exchange components of the outdoor body are responsible for converting the outdoor heat into the room, and the water droplets condensed on the surface of the heat exchange components are below zero in the outdoor air. The environment will inevitably freeze into frost and adhere to the surface. On the one hand, the heat exchange effect will drop sharply. Heat is generated in the heat exchange parts of the outdoor body to remove the frost condensed on the surface of the heat exchange parts of the outdoor body, which not only causes a waste of defrosting energy, but also causes the air conditioner to heat up when the outdoor air is below zero. The effect is low; not only that, but the more important thing is that when the heat exchange parts made of it, such as the heat sink of the air conditioner, are used in a refrigeration environment, when the surface temperature is lower than the dew point of the ambient air, the moisture in the ambient air will inevitably Condensed into water droplets, such water droplets will inevitably contain acid, alkali, salt or other components that cause corrosion in the case of environmental pollution, which will undoubtedly cause corrosion on the surface of the aluminum foil and greatly reduce its corrosion resistance.