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Solvent-free self-cleaning UV resin environment-friendly coating and preparation method thereof

A self-cleaning, solvent-free technology, applied in coatings, anti-corrosion coatings, polyester coatings, etc., can solve the problems of poor coating stability, high cost of preparation methods, and no prospect of large-scale preparation, and achieve good hydrophobicity, The effect of excellent hydrophobicity, excellent acid and alkali resistance and stability

Pending Publication Date: 2022-03-25
武汉格林鸿业新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above coatings do not have the prospect of large-scale preparation due to their poor stability and high cost of preparation methods.

Method used

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  • Solvent-free self-cleaning UV resin environment-friendly coating and preparation method thereof
  • Solvent-free self-cleaning UV resin environment-friendly coating and preparation method thereof
  • Solvent-free self-cleaning UV resin environment-friendly coating and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0026] The preparation method of described superhydrophobic self-cleaning coating comprises:

[0027] (1) Add γ-alumina powders with particle sizes of 200-300nm and 1.5-2μm to the modification solution, and the mass ratios are 1:45-50 and 1:55-60, respectively. Stirring at 40-60°C for 6 hours and then vacuum-drying with a vacuum degree of -0.1MPa to obtain modified γ-alumina powders with different particle sizes. Among them, the modified solution is 3-cyclohexylaminopropanesulfonic acid, octadecyldimethylbenzyl ammonium chloride, methyl Mixed aqueous solution of phenyldimethoxysilane and itaconic acid. Those skilled in the art should know that the modified γ-alumina powder obtained after the processing of 200-300 nm and 1.5-2 μm γ-alumina powders with different particle sizes still has different particle sizes.

[0028] (2) Mix hydroxyfluorosilicone oil, propylene glycol block polyether and dicobalt octacarbonyl in a weight ratio of 1:1.2~1.5:4~5, feed nitrogen gas, heat and...

Embodiment 1

[0034](1) Add γ-alumina powders with particle sizes of 200-300nm and 1.5-2μm to the modification solution, and the mass ratios are 1:45 and 1:55, respectively. After stirring at 40° C. for 6 h, vacuum drying was carried out at a vacuum degree of -0.1 MPa to obtain modified γ-alumina powder. Wherein, the modified solution is a mixed aqueous solution of 3-cyclohexylaminopropanesulfonic acid, octadecyldimethylbenzyl ammonium chloride, methylphenyldimethoxysilane and itaconic acid, and the weight ratio is 0.8 :1.2:10:18.

[0035] (2) Mix hydroxyfluorosilicone oil, propylene glycol block polyether and dicobalt octacarbonyl in a weight ratio of 1:1.2:4, pass nitrogen gas under airtight conditions, heat and stir at 40°C for 2 hours, and obtain polyether modified Non-toxic silicone as a leveling agent. Wherein, the nitrogen pressure is 0.5 psi.

[0036] (3) Mix the polyether modified silicone obtained in the above (2) with silane coupling agent KH-550, photoinitiator 1-hydroxy-cycl...

Embodiment 2

[0040] (1) Add γ-alumina powders with particle sizes of 200-300nm and 1.5-2μm to the modification solution, and the mass ratios are 1:48 and 1:58, respectively. After stirring at 50° C. for 6 h, vacuum drying was carried out at a vacuum degree of -0.1 MPa to obtain modified γ-alumina powder. Wherein, the modified solution is a mixed aqueous solution of 3-cyclohexylaminopropanesulfonic acid, octadecyldimethylbenzyl ammonium chloride, methylphenyldimethoxysilane and itaconic acid, and the weight ratio is 0.8 :1.3:12:19.

[0041] (2) Mix hydroxyfluorosilicone oil, propylene glycol block polyether and dicobalt octacarbonyl in a weight ratio of 1:1.3:4.5, pass nitrogen gas under airtight conditions, heat and stir at 45°C for 2 hours, and obtain polyether modified Non-toxic silicone as a leveling agent. Wherein, the nitrogen pressure is 0.5 psi.

[0042] (3) Mix the polyether modified silicone obtained in the above (2) with silane coupling agent KH-550, photoinitiator 1-hydroxy-c...

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Abstract

The invention provides a solvent-free self-cleaning UV (ultraviolet) resin environment-friendly coating and a preparation method thereof, and the solvent-free self-cleaning UV resin environment-friendly coating is prepared by adding two kinds of modified gamma-alumina powder with different particle sizes into a UV precursor, spraying and then carrying out ultraviolet curing. Comprising the following steps: adding two kinds of gamma-aluminum oxide powder with different particle sizes into a modified solution, stirring and drying to obtain modified gamma-aluminum oxide powder; the preparation method comprises the following steps: mixing hydroxyl fluorosilicone oil, propylene glycol block polyether and cobalt octacarbonyl, introducing nitrogen, heating and stirring to obtain polyether modified organic silicon as a flatting agent; mixing and stirring polyether modified organic silicon, a silane coupling agent, a photoinitiator and UV resin to obtain a UV precursor; stirring the modified gamma-aluminum oxide powder in a UV precursor at room temperature, spraying to form a film, and performing ultraviolet curing. The prepared UV resin environment-friendly coating has excellent hydrophobicity and self-cleaning capability, also has good acid and alkali resistance and high and low temperature alternation resistance, and is environment-friendly and safe.

Description

technical field [0001] The invention relates to the technical field of nano-coating preparation, in particular to a solvent-free self-cleaning UV resin environmental protection coating and a preparation method thereof. Background technique [0002] Ultraviolet (UV) curing coating is a new type of environmental protection coating developed by Germany in the 1960s. It has developed rapidly because of its high efficiency, no pollution, energy saving and excellent coating performance. It mainly generates free radicals (or cations) by irradiating the photoinitiator in the coating with ultraviolet light, thereby initiating the polymerization of double bonds in the polymer or monomer, and finally obtaining a polymer with a relatively high molecular weight and certain mechanical properties. Thin films are widely used in solar photovoltaic power generation, optical lenses and photovoltaic construction. [0003] Inspired by the bionic structure of lotus leaves, the super-hydrophobic ...

Claims

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Application Information

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IPC IPC(8): C09D167/06C09D171/00C09D5/08C09D7/47C09D7/62
CPCC09D167/06C09D5/08C09D7/47C09D7/62C08K2201/003C08K2003/2227C08K2201/011C08L71/00C08L83/12C08K9/04C08K9/06C08K3/22
Inventor 王楠陈志刚
Owner 武汉格林鸿业新材料科技有限公司
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