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Ultraviolet light curing hydrophilic aluminum foil paint and preparation method thereof

A technology of hydrophilic aluminum foil and ultraviolet light, which is applied in the field of hydrophilic aluminum foil coating and its preparation, can solve the problems of decreased production efficiency, unfavorable environmental protection, and high energy consumption for heating and curing, and achieves fast curing speed, moderate hardness, and focus on good effect

Active Publication Date: 2013-12-04
ZHENJIANG YINHAI ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the volatilization of organic solvents is not conducive to environmental protection; on the other hand, heating and curing consumes a lot of energy and reduces production efficiency

Method used

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  • Ultraviolet light curing hydrophilic aluminum foil paint and preparation method thereof
  • Ultraviolet light curing hydrophilic aluminum foil paint and preparation method thereof
  • Ultraviolet light curing hydrophilic aluminum foil paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. Synthesis of modified epoxy ester

[0020] (1) Equip components according to mass ratio

[0021] E-20 epoxy resin 100

[0022] Diethanolamine 21

[0023] Linoleic acid 57.44

[0024] (2) Preparation

[0025] Weigh 100 parts of bisphenol A type epoxy resin with an epoxy value of 0.2, heat up to 120°C until it melts, then weigh 21 parts of diethanolamine, and add it dropwise to the molten epoxy resin for 0.5 hours. After completion, react at 150°C for 1 hour, lower the temperature to 110°C, add 57.44 parts of linoleic acid with an acid value of 195 mg / g for neutralization, and cool until the acid value is less than 5 mg / g to obtain a modified epoxy resin .

[0026] 2. Preparation of hydrophilic aluminum foil photocuring coating

[0027] (1) Prepare components according to mass percentage content

[0028]

[0029] (2) Preparation

[0030] According to the order, add modified epoxy resin, active diluent, toughening agent to it respectively, high-speed dispersi...

Embodiment 2

[0032] 1. Synthesis of modified epoxy ester

[0033] (1) Equip components according to mass ratio

[0034] E-44 epoxy resin 100

[0035] Diethanolamine 46.2

[0036] Linoleic acid 126.35

[0037] (2) Preparation

[0038] Weigh 100 parts of bisphenol A type epoxy resin with an epoxy value of 0.44, heat it up to 100°C, weigh 46.2 parts of diethanolamine, and drop it into the molten epoxy resin at 120°C for 0.8 hours , then react at 130°C for 2 hours, cool down to 100°C, add 126.43 parts of linoleic acid with an acid value of 195mg / g to neutralize, until the acid value is less than 5mg / g, cool to obtain modified epoxy fat.

[0039] 2. Preparation of hydrophilic aluminum foil photocuring coating

[0040] (1) Prepare components according to mass percentage content

[0041]

[0042] (2) Preparation

[0043] In order, add modified epoxy resin, reactive diluent, and toughening agent to it, and stir at a high speed of 2000 rpm for 20 minutes, then add 1-hydroxy-cyclohexyl be...

Embodiment 3

[0045] 1. Synthesis of modified epoxy ester

[0046] (1) Equip components according to mass ratio

[0047] E-51 epoxy resin 100

[0048] Diethanolamine 53.55

[0049] Linoleic acid 146.46

[0050] (2) Preparation

[0051] Weigh 100 parts of bisphenol A epoxy resin with an epoxy value of 0.2, heat up to 90°C, then weigh 53.55 parts of diethanolamine, and add it dropwise to the molten epoxy resin for 1 hour. Then react at 120°C for 3 hours, cool down to 90°C, add 146.54 parts of linoleic acid with an acid value of 195 mg / g for neutralization, and cool until the acid value is less than 5 mg / g to obtain a modified epoxy resin.

[0052] 2. Preparation of hydrophilic aluminum foil photocuring coating

[0053] (1) Prepare components according to mass percentage content

[0054]

[0055] (2) Preparation

[0056]In order, add modified epoxy resin, reactive diluent, and toughening agent respectively, and stir for 15 minutes at a high-speed dispersion of 2500 rpm, and then add ...

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Abstract

The invention discloses an ultraviolet light curing hydrophilic aluminum foil paint. The paint is composed of following components in percentage by weight: 30 to 50% of modified epoxy ester, 40 to 60% of active diluent, 2 to 5% of flexibilizer, and 4 to 8% of photo-initiator. The preparation method comprises following steps: subjecting epoxy resin to react with diethanol amine to open the ring through an esterification ring opening method, then neutralizing with linoleic acid so as to obtain hydrophilic modified epoxy ester capable of further carry out photo curing polymerization, and then mechanically stirring to evenly mix the modified epoxy ester with other components according to the mass ratio mentioned above so as to obtain the hydrophilic aluminum foil photo curing paint. The paint is coated on the surface of a photo aluminum foil and then irritated by ultraviolet lights to directly be turned into a film. The curing coating has the advantages of strong continuous hydrophilicity, moderate hardness, good adhesive force, and little wear to punching moulds. The coating provides functions of corrosion resistance, protection, and hydrophilicity for aluminum foils.

Description

technical field [0001] The invention belongs to the field of anticorrosion applied to hydrophilic aluminum foil coatings, in particular to a coating for hydrophilic aluminum foils cured by ultraviolet light and a preparation method thereof. Background technique [0002] Hydrophilic aluminum foil coating material is a new type of functional material. It is coated on the heat exchange fins of air conditioners, which overcomes the surface corrosion, easy formation of water bridges, white powder, and peculiar smell caused by the use of light foil for air conditioner heat exchange fins. And the resulting defects such as low heat exchange efficiency have promoted the development of air conditioners in the direction of energy saving, environmental protection and miniaturization. [0003] With the requirement of improving the heat exchange efficiency of air conditioners and reducing costs, the thickness of the hydrophilic coating is reduced from 0.8 to 1.0 μm to 0.2 to 0.4 μm, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D7/12C09D5/08C08G59/64C08G59/16B05D7/14B05D3/06
Inventor 李为立张勤孙家麟
Owner ZHENJIANG YINHAI ALUMINUM
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