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Transparent hydrophobic photocureable coating and preparation method thereof

A light-curing coating and light-curing technology, applied in coatings, polyether coatings, etc., can solve the problems of weak adhesion of substrate materials, loss of surface hydrophobicity, high light transmittance, etc., and achieve low surface tension, high Application and industrial value, the effect of low equipment requirements

Active Publication Date: 2021-10-12
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the transparent coating requires a very high light transmittance of the surface coating. In addition, the thickness of the coating and particles will also affect its refraction, resulting in a decrease in transparency
Hydrophobic agents usually need organic solvents to dissolve, and the hydrophobic coating has weak adhesion to the substrate material. During use, the coating is easy to fall off and lose surface hydrophobicity

Method used

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  • Transparent hydrophobic photocureable coating and preparation method thereof
  • Transparent hydrophobic photocureable coating and preparation method thereof
  • Transparent hydrophobic photocureable coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method and application of a transparent hydrophobic light-cured coating, comprising the following steps:

[0030] (1) Add pentaerythritol oleate (monosubstituted), 3-mercaptopropyltriethoxysilane and photoinitiator 1173 into the beaker at a mass ratio of 5:4:1, measure in 10 grams, and stir evenly with magnetic force. Obtain photocurable coating.

[0031] (2) Spin-coat the photocurable coating prepared in step (1) onto the glass surface, and then irradiate the substrate under a UV light source for 5 min at a light intensity of 250 mW cm -2 , a transparent hydrophobic photocurable coating can be obtained.

Embodiment 2

[0033] A preparation method and application of a transparent hydrophobic light-cured coating, comprising the following steps:

[0034] (1) Add glycerol oleate (monosubstituted), pentaerythritol tetra-3-mercaptopropionate and photoinitiator 651 into ethanol at a mass ratio of 5:3:2, measure with a solid content of 10%, and then add it to a beaker, Stir evenly with magnetic force to obtain photocurable coating.

[0035] (2) Spin-coat the light-curing coating prepared in step (1) onto the glass surface. After the solvent evaporates at room temperature, place the substrate under a UV light source for 1 min, and the light intensity is 500mW cm -2 , a transparent hydrophobic photocurable coating can be obtained.

Embodiment 3

[0037] A preparation method and application of a transparent hydrophobic light-cured coating, comprising the following steps:

[0038] (1) Add disubstituted polyethylene glycol oleate, 2-mercaptoethyltriethoxysilane and photoinitiator 184 into acetone at a mass ratio of 5:4:3, measure with a solid content of 10%, and then add In the beaker, magnetically stir evenly to obtain the light-cured coating.

[0039] (2) Spin-coat the light-curing coating prepared in step (1) onto the surface of PMMA. After the solvent evaporates at room temperature, place the substrate under an ultraviolet light source for 2 min, and the light intensity is 300 mW cm -2 , a transparent hydrophobic photocurable coating can be obtained.

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PUM

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Abstract

The invention belongs to the technical field of photocureable coatings, and particularly relates to a transparent hydrophobic photocureable coating and a preparation method thereof.The preparation method comprises the following steps: raw materials are evenly mixed to obtain the photocureable coating, and the raw materials comprise unsaturated grease, a cross-linking agent and a photoinitiator; and the surface of a substrate is coated with the photocureable coating, the substrate is irradiated under ultraviolet light, and the transparent hydrophobic photocureable coating is obtained. The transparent hydrophobic photocureable coating meets the national environmental protection requirement in the processing process and the final product application, the preparation method is simple, the requirement for equipment is not high, the cost is extremely low, the viscosity is moderate, the transparent coating requirement is met, and the transparent coating is hard, resistant to scraping, low in surface tension and good in durability.

Description

technical field [0001] The invention belongs to the technical field of photocurable coatings, and in particular relates to a transparent hydrophobic photocurable coating and a preparation method thereof. Background technique [0002] Hydrophobic coatings have been applied in many fields due to their excellent surface protection properties, such as self-cleaning, anti-fouling, anti-fog, anti-icing, anti-corrosion, etc. However, the transparent coating requires a very high light transmittance of the surface coating. In addition, the coating thickness and particles will also affect its refraction, resulting in a decrease in transparency. Hydrophobic agents usually need organic solvents to dissolve, and the hydrophobic coating has weak adhesion to the substrate material. During use, the coating is easy to fall off and lose surface hydrophobicity. With the country's requirements for environmental protection, light-curing coatings are the direction that the country is vigorously ...

Claims

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Application Information

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IPC IPC(8): C09D4/00C09D7/63C09D171/02
CPCC09D4/00C09D7/63C09D171/02C08K5/548
Inventor 李晖陈国强
Owner SUZHOU UNIV
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