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Steel wool-resistant high-hardness ultraviolet (UV) radiation cured coating, and preparation and using methods thereof

A radiation-cured, high-hardness technology, applied in polyurea/polyurethane coatings, coatings, devices for coating liquids on surfaces, etc., can solve problems such as poor leveling and poor coating adhesion, reduce VOC emissions, meet Performance and appearance, high yield effect

Inactive Publication Date: 2012-07-18
深圳市嘉卓成科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the current market development trend, the comprehensive performance requirements for 3C and digital products are getting higher and higher, such as paper tape RCA resistance, eraser resistance, steel wool resistance, weather resistance, water boiling resistance, hand sweat resistance, etc., the current market Most of the high-functionality polymer resins in the world, such as Sartomer CN9013 and Nippon Kayaku’s DPCA-60, etc., although the hardness meets certain requirements, the coatings made generally have poor adhesion, poor leveling, and comprehensive performance. It can only meet the requirements of common products on the market. Compared with the standards of brand products, such as some harsh conditions (resistance to steel velvet wiping without scratching, resistance to boiling water) are more difficult to meet

Method used

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  • Steel wool-resistant high-hardness ultraviolet (UV) radiation cured coating, and preparation and using methods thereof
  • Steel wool-resistant high-hardness ultraviolet (UV) radiation cured coating, and preparation and using methods thereof
  • Steel wool-resistant high-hardness ultraviolet (UV) radiation cured coating, and preparation and using methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1 Table-1

[0048]

[0049]

[0050] The method of preparation is as follows:

[0051] (1) Solvent preparation: take 22 parts by weight of methyl ethyl ketone for subsequent use;

[0052](2) Resin monomer mixing and dispersion: take a clean paint tank, take 25 parts of hexafunctional aliphatic urethane acrylate resin, 35 parts of hexafunctional silicon modified urethane acrylate resin and 10 parts of trimethylol Propane trimethacrylate was stirred for 15 minutes with a high-speed disperser at a speed of 1200 rpm;

[0053] (3) Leveling agent pre-mixing: take 1 part and weigh polyether-modified polydimethylsiloxane and mixed solvent, stir with a high-speed disperser at a speed of 600 rpm for 15 minutes until uniformly mixed, and set aside;

[0054] (4) Photoinitiator dissolution: get 2 parts of 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, 2 parts of 1-hydroxyl-cyclohexyl-phenyl ketone and 8 parts of solvent, and use high-speed Stir the disperser at a s...

Embodiment 2

[0057] Example 2 Table-2

[0058]

[0059] Wherein, the mixed solvent includes: butyl acetate: 30 parts; n-butanol: 10 parts; isopropanol: 15 parts and is uniformly mixed.

[0060] The method of preparation is as follows:

[0061] (1) Solvent preparation: according to the required amount, take 10 parts of the above-mentioned mixed solvent containing butyl acetate, n-butanol and isopropanol;

[0062] (2) Resin monomer mixing and dispersion: take a clean paint tank, take 35 parts of hexafunctional aliphatic urethane acrylate resin, 25 parts of hexafunctional silicon-modified urethane acrylate resin and 5 parts of trimethylolpropane trimethyl Acrylic acid ester, stir 10 minutes with the rotating speed of 1500 revs per minute with high-speed disperser;

[0063] (3) Leveling agent premixing: Weigh 2 parts of polyether modified polydimethylsiloxane and 2 mixed solvents, stir with a high-speed disperser at a speed of 800 rpm for 10 minutes until uniformly mixed, and set aside; ...

Embodiment 3

[0067] Example 3 Table-3

[0068]

[0069] Wherein, in the preparation of the mixed solvent, take methyl ethyl ketone: 40 parts; butyl acetate: 45 parts; n-butanol: 10 parts and mix them uniformly to obtain.

[0070] The method of preparation is as follows:

[0071] (1) Solvent preparation: according to the required amount, take 22 parts of the above-mentioned mixed solvent containing methyl ethyl ketone, butyl acetate, and n-butanol;

[0072] (2) Resin monomer mixing and dispersion: take a clean paint tank, take 30 parts of hexafunctional aliphatic urethane acrylate resin, 30 parts of hexafunctional silicon-modified urethane acrylate resin and 8 parts of trimethylolpropane trimethyl Acrylic acid ester, stir 8 minutes with the rotating speed of 1200 revs per minute with high-speed disperser;

[0073] (3) Leveling agent premixing: Weigh 1 part of polyether modified polydimethylsiloxane and 5 mixed solvents, stir with a high-speed disperser at a speed of 700 rpm for 8 minut...

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Abstract

The invention provides a steel wool-resistant high-hardness ultraviolet (UV) radiation cured coating, and preparation and using methods thereof. The coating comprises the following components in part by weight: 25 to 35 parts of six-functional group aliphatic series polyurethane acrylic resin, 25 to 35 parts of six-functional group silicon modified polyurethane acrylic resin, 5 to 10 parts of trimethylolpropane trimethacrylate, 1 to 2 parts of polyether modified polydimethylsiloxane, 1 to 2 parts of diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, 2 to 6 parts of 1-hydroxycyclohexyl phenyl ketone, and 10 to 22 parts of solvent. The coating is prepared to overcome the defects in the conventional UV cured coating, and is particularly suitable for high-hardness coating which is required by plastic keys such as acrylonitrile-butadiene-styre (ABS) keys, poly carbonate (PC) keys and the like, and can widely applied to coating of various plastic parts of communication, computer and consumer (3C) products, and digital products; and the high requirement of the UV coating is met.

Description

technical field [0001] The application of the present invention relates to a steel wool-resistant high-hardness UV radiation-cured coating and its preparation and use methods, which belong to the technical field of chemical coatings. Background technique [0002] For a long time, computers, communications and consumer electronics have high requirements for anti-corrosion and appearance decoration, which are closely related to the coatings used. The quality of the surface coating process has become one of the important indicators to determine the product grade. Many manufacturers continue to make a fuss about this aspect and use it as a selling point of the product. Such as MP3s coated with antibacterial coatings, laptops with piano lacquer appearance, and even mobile phones coated with coatings to reduce electromagnetic radiation. 3C and digital product manufacturers have an increasing demand for more advanced and personalized coatings. With the rapid development of sprayi...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D183/12B05D1/02B05D3/00B05D7/24
Inventor 黄杰良吴小浩
Owner 深圳市嘉卓成科技发展有限公司
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