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Hydrophilic aluminum foil coating and method for preparing and curing same

A hydrophilic aluminum foil and coating technology, which is applied in the direction of epoxy resin coatings and coatings, can solve the problems of reduced production efficiency, high energy consumption for heating and curing, and is not conducive to environmental protection, and achieves fast curing speed, good adhesion, and hardness. moderate effect

Inactive Publication Date: 2013-01-16
JIANGSU UNIV OF SCI & TECH
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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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  • Hydrophilic aluminum foil coating and method for preparing and curing same
  • Hydrophilic aluminum foil coating and method for preparing and curing same
  • Hydrophilic aluminum foil coating and method for preparing and curing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Synthesis of Linoleic Acid Modified Epoxy Ester

[0026] (1) Equipped with components according to parts by mass

[0027] E-20 epoxy resin (epoxy value 0.20) 56 parts,

[0028] Diethanolamine 12 parts,

[0029] 32 parts of linoleic acid.

[0030] (2) Preparation

[0031] Weigh 56 parts of bisphenol A epoxy resin E-20 with an epoxy value of 0.2, heat up to 120°C until it melts, then weigh 12 parts of diethanolamine and add it dropwise to the molten epoxy resin for a time of After 0.5 hours, react at 150°C for 1 hour after completion, cool down to 110°C, add 32 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 a modified epoxy resin.

[0032] 2. Preparation of hydrophilic aluminum foil photocuring coating

[0033] (1) Prepare components according to mass percentage content

[0034]

[0035]

[0036] (2) Preparation

[0037] In order, add reactive diluents such as modified epoxy resi...

Embodiment 2

[0039] 1. Synthesis of Linoleic Acid Modified Epoxy Ester

[0040] (1) Equipped with components according to parts by mass

[0041] 37 parts of E-44 epoxy resin (epoxy value 0.44),

[0042] Diethanolamine 17 parts,

[0043] 46 parts of linoleic acid.

[0044] (2) Preparation

[0045] Weigh 37 parts of bisphenol A epoxy resin E-44 with an epoxy value of 0.44, heat up to 100°C, weigh 17 parts of diethanolamine, and add it dropwise to the molten epoxy resin at 120°C. After 0.8 hours, react at 130°C for 2 hours after completion, cool down to 100°C, then add 46 parts of linoleic acid with an acid value of 195 mg / g for neutralization until the acid value is less than 5 mg / g, then cool to obtain the modified Sexual epoxy resin.

[0046] 2. Preparation of hydrophilic aluminum foil photocuring coating

[0047] (1) Prepare components according to mass percentage content

[0048]

[0049] (2) Preparation

[0050] According to the order, add reactive diluents such as modified e...

Embodiment 3

[0052] 1. Synthesis of Linoleic Acid Modified Epoxy Ester

[0053] (1) Equipped with components according to parts by mass

[0054] 33 parts of E-51 epoxy resin,

[0055] Diethanolamine 18 parts,

[0056] 49 parts of linoleic acid.

[0057] (2) Preparation

[0058] Weigh 33 parts of bisphenol A epoxy resin E-51 with an epoxy value of 0.51, heat it up to 90°C, then weigh 18 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 49 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.

[0059] 2. Preparation of hydrophilic aluminum foil photocuring coating

[0060] (1) Prepare components according to mass percentage content

[0061]

[0062] (2) Preparation

[0063] In order, add reactive diluents such as modified epoxy resin, IBOA, and tougheners, and stir at a high speed of 2500 rpm for 15 minute...

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Abstract

The invention discloses a hydrophilic aluminum foil coating and methods for preparing and curing the hydrophilic aluminum foil coating. The coating comprises the following components by weight: 30-45% of linolenic-acid modified epoxy ester, 12-20% of isobornyl acrylate, 15-20% of dimethacrylate polyethylene glycol ester, 3-8% of ethoxylated trimethylolpropane triacrylate, 10-15% of 1,6-hexanediol diacrylate, 5-10% of methylhydroxyethyl acrylate, 2-5% of a toughening agent and 4-8% of photoinitiator. The method for preparing the hydrophilic aluminum foil coating comprises the following steps: mixing 33-56 parts by weight of bisphenol A epoxy resin, 12-18 parts by weight of diethanolamine and 32-49 parts by weight of linoleic acid to obtain the linolenic-acid modified epoxy ester, adding the isobornyl acrylate as well as the thinning agent, the toughening agent and the photoinitiator with different activities in sequence, and dispersing and mixing at high speed to obtain the hydrophilic aluminum foil coating. The hydrophilic aluminum foil coating can be applied to the surface of the aluminum foil and irradiated by the ultraviolet light, and the coating layer which is cured into the film has strong hydrophilicity, moderate hardness and good adhesion.

Description

technical field [0001] The invention belongs to the field of anticorrosion applied to hydrophilic aluminum foil coatings, in particular to a hydrophilic aluminum foil coating and a preparation and curing 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 the requirements for h...

Claims

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Application Information

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IPC IPC(8): C09D163/10C09D7/12C08G59/16
Inventor 李为立
Owner JIANGSU UNIV OF SCI & TECH
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