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Bottom surface unified hydrophilic aluminum foil coating and process thereof

A hydrophilic aluminum foil and coating technology, applied in the direction of epoxy resin coating, polyurea/polyurethane coating, coating, etc., can solve the problems of large energy loss and low production efficiency

Inactive Publication Date: 2011-01-12
WUHAN FLIGHT CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when making the surface coating of aluminum foil heat exchanger, the production efficiency is not high, and the loss of energy consumption is large

Method used

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  • Bottom surface unified hydrophilic aluminum foil coating and process thereof

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Embodiment Construction

[0016] In the first reactor equipped with a stirrer, thermometer, dropping funnel and condenser, add sodium vinylsulfonate and deionized water, and raise the temperature of the first reactor to 80 degrees Celsius under stirring. At the same time, drop triethylamine and a mixed monomer composed of polymerizable polyurethane macromonomer, polymerizable modified polyether macromonomer and polymerizable epoxy macromonomer into the first reactor to control the dripping The funnel makes it possible to drip evenly over 1 to 2 hours. After the dripping is completed, the first reactor is kept warm for 3 hours, so that the mixture in the first reactor can be polymerized. After the reaction, a yellow transparent liquid with a solid content of 25 wt % was obtained for future use.

[0017] In a second reactor also equipped with a stirrer, thermometer, dropping funnel and condenser, add a polymerizable epoxy macromonomer and ammonium cerium nitrate as an initiator, and stir the mixture in ...

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Abstract

The invention relates to a bottom surface unified hydrophilic aluminum foil coating and a process thereof. Epoxy resin, acrylic resin and polyurethane resin serving as theme resins are pre-crosslinked to form a single-component coating material. When the coating is coated on an aluminum foil base material, the epoxy resin and the polyurethane undergo crosslinking reaction at 180 DEG C to form a layer of anticorrosion base paint; and the acrylic resin and the polyurethane undergo crosslinking curing at 230 DEG C to form a layer of hydrophilic surface paint; therefore, one-time coating and one-time baking are reduced, the production efficiency is improved, and equipment investment and energy consumption are reduced.

Description

technical field [0001] The invention relates to a bottom-surface-integrated hydrophilic aluminum foil coating and a process thereof. In particular, it relates to a hydrophilic coating for air-conditioning aluminum foil heat exchangers. Background technique [0002] Under the pressure of rising raw material prices, domestic air conditioners are constantly developing towards miniaturization, light weight, and performance change. As one of the core technologies, aluminum foil heat exchangers for air conditioners continue to put forward higher requirements. Corrosion resistance, hydrophilicity, water wetness and other indicators are becoming more and more perfect, so hydrophilic aluminum foil coatings, a new coating material, came into being. When the air conditioner is cooling, the water vapor in the air condenses and adheres to the surface of the aluminum foil heat exchanger of the air conditioner. On the one hand, the attached condensed water forms a water bridge on the sur...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D175/04C09D133/00
Inventor 汪群吴文军
Owner WUHAN FLIGHT CHEM
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