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A kind of preparation method of superhydrophobic antistatic transparent coating

A transparent coating and water-resistant technology, applied in coatings, conductive coatings, devices for coating liquid on the surface, etc., can solve the problems of easy accumulation of dust, single function, and poor dust prevention, and achieve the goal of reducing accumulation Effect

Active Publication Date: 2022-04-15
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing coating is opaque and has a single function so that it cannot be well dust-proof, and provides a method for preparing a superhydrophobic antistatic transparent coating. By modifying the coating on the surface of the object, the object is endowed with self- Cleaning and antistatic performance, solve problems such as easy accumulation of dust on the surface of objects

Method used

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  • A kind of preparation method of superhydrophobic antistatic transparent coating
  • A kind of preparation method of superhydrophobic antistatic transparent coating
  • A kind of preparation method of superhydrophobic antistatic transparent coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Apply the coating to the polyimide film surface:

[0027] Step 1: Weigh nano-silica and add it to absolute ethanol. After magnetically stirring for 15 minutes, ultrasonically disperse for 15 minutes to obtain a uniform nano-silica dispersion. Put the nano-silica dispersion in a container and control the temperature of the oil bath. At 50°C, stir magnetically at the same time; add ethyl orthosilicate, stir for 15 minutes, add hexamethyldisilazane, add deionized water after 30 minutes, and continue to react for 6 hours to obtain a hydrophobic silica sol;

[0028] Step 2: Weigh 1 g of the hydrophobic silica sol obtained in Step 1, add 5 g of absolute ethanol, and sonicate at room temperature for 30 minutes to obtain a uniform hydrophobic silica coating solution.

[0029] Step 3: Prepare a silver nanowire solution with a concentration of 3 wt%, clean the transparent polyimide film with ethanol ultrasonically, and then dry it. Take the dried transparent polyimide film and s...

Embodiment 2

[0033] Apply the coating to the glass surface:

[0034] Step 1: Weigh nano-silica and add it to absolute ethanol. After magnetically stirring for 15 minutes, ultrasonically disperse for 15 minutes to obtain a uniform nano-silica dispersion. Put the nano-silica dispersion in a container and control the temperature of the oil bath. At 50°C, stir magnetically at the same time; add ethyl orthosilicate, stir for 15 minutes, add hexamethyldisilazane, add deionized water after 30 minutes, and continue to react for 6 hours to obtain a hydrophobic silica sol;

[0035] Step 2: Weigh 1 g of the hydrophobic silica sol obtained in Step 1, add 5 g of absolute ethanol, and sonicate at room temperature for 30 minutes to obtain a uniform hydrophobic silica coating solution.

[0036] Step 3: Prepare a silver nanowire solution with a concentration of 3 wt%, clean the transparent glass with acetone ultrasonically, and then dry it. Take the dried transparent glass and soak it in the silver nanowi...

Embodiment 3

[0040] To apply the coating to a clear PET surface:

[0041] Step 1: Weigh nano-silica and add it to absolute ethanol. After magnetically stirring for 15 minutes, ultrasonically disperse for 15 minutes to obtain a uniform nano-silica dispersion. Put the nano-silica dispersion in a container and control the temperature of the oil bath. At 50°C, stir magnetically at the same time; add ethyl orthosilicate, stir for 15 minutes, add hexamethyldisilazane, add deionized water after 30 minutes, and continue to react for 6 hours to obtain a hydrophobic silica sol;

[0042] Step 2: Weigh 1 g of the hydrophobic silica sol obtained in Step 1, add 5 g of absolute ethanol, and sonicate at room temperature for 30 minutes to obtain a uniform hydrophobic silica coating solution.

[0043] Step 3: A gold nanowire solution with a concentration of 3 wt % was prepared, and the transparent PET was ultrasonically cleaned with acetone and then dried. The dried transparent PET was soaked into the gold...

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Abstract

The invention discloses a preparation method of a superhydrophobic antistatic transparent coating, which belongs to the technical field of preparation of multifunctional coatings. The purpose of the present invention is to solve the problem that the existing coating is opaque and has a single function so that it cannot be well dust-proof. The metal nanowire solution is configured, the substrate is ultrasonically cleaned with an organic solvent, dried, soaked in the metal nanowire solution, and pulled Drying after film formation; soak the film into the hydrophobic silica coating solution, pull the film and dry it to obtain a superhydrophobic antistatic transparent coating. Silver nanowires are a transparent conductive agent. Hydrophobic silica sol as a coating can make the surface of the sample achieve superhydrophobic effect. Combining silver nanowires and hydrophobic silica sol to coat the surface of the sample can achieve a good Dustproof effect. The multifunctional coating of the present invention has antistatic, self-cleaning and transparency at the same time, and various functions do not interfere with each other, and cooperate to reduce the accumulation of dust on the surface of objects.

Description

technical field [0001] The invention belongs to the technical field of preparation of multifunctional coatings, and in particular relates to a preparation method of a superhydrophobic antistatic transparent coating. Background technique [0002] Due to the contact and friction during the use of the material, the surface will gradually accumulate charges, and the charged particles in the environment will gather on the surface of the material under the action of van der Waals force and static electricity. The fine dust accumulated on the surface of the material will not only cause product pollution, but also affect the working efficiency of the equipment and even affect its service life. [0003] Superhydrophobic coating is a new type of coating with special surface wetting properties. Generally, it means that the contact angle between the coating and water is greater than 150°, and the contact angle hysteresis is less than 5°. Functionality has become one of the current rese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D1/18B05D1/38B05D3/02B05D3/10B05D5/08B05D5/12C09D1/00C09D5/24
CPCB05D5/08B05D5/12B05D1/38B05D3/10B05D3/0254B05D1/18B05D7/534C09D1/00C09D5/24B05D2201/02B05D2203/35B05D2203/30
Inventor 成中军张东杰王瑞洁焦小雨潘宇王训春杨洋刘宇艳
Owner HARBIN INST OF TECH
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