Preparation method of super-hydrophobic anti-static transparent coating

A transparent coating, water-resistant technology, used in coatings, conductive coatings, devices for coating liquids on surfaces, etc., can solve problems such as single function, poor dust resistance, and opaque coatings

Active Publication Date: 2021-09-10
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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  • Preparation method of super-hydrophobic anti-static transparent coating
  • Preparation method of super-hydrophobic anti-static transparent coating
  • Preparation method of super-hydrophobic anti-static transparent coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0027] Step 1: Take the nano silica to add anhydrous ethanol, and the magnetic force is stirred for 15 min, the ultrasonic dispersion is 15 min to obtain a uniform nano silica dispersion, and the nano silica dispersion is placed in a container, controlling the temperature of the oil bath. It was 50 ° C, while magnetic force was stirred; orthosilicate was added, stirred for 15 min, adding hexamethylene silicane, and deionized water was added after 30min, and then the hydrophobic silica sol was obtained.

[0028] Step 2: 1 g of a hydrophobic silica sol obtained from the step, add 5 g of anhydrous ethanol, and at room temperature for 30 min, resulting in a uniform hydrophobic silica coating.

[0029] Step 3: Configure a silver nanowire solution having a concentration of 3% by weight, and dried the transparent polyimide film with ethanol. The dried transparent polyimide film was extracted into the silver nanowire solutio...

Embodiment 2

[0033] Apply the coating to the glass surface:

[0034] Step 1: Take the nano silica to add anhydrous ethanol, and the magnetic force is stirred for 15 min, the ultrasonic dispersion is 15 min to obtain a uniform nano silica dispersion, and the nano silica dispersion is placed in a container, controlling the temperature of the oil bath. It was 50 ° C, while magnetic force was stirred; orthosilicate was added, stirred for 15 min, adding hexamethylene silicane, and deionized water was added after 30min, and then the hydrophobic silica sol was obtained.

[0035] Step 2: 1 g of a hydrophobic silica sol obtained from the step, add 5 g of anhydrous ethanol, and at room temperature for 30 min, resulting in a uniform hydrophobic silica coating.

[0036] Step 3: The silver nanowire solution having a concentration of 3 wt% was configured to dry the transparent glass with acetone. The dried transparent glass was extracted into the silver nanowire solution, and the film was placed at a rate o...

Embodiment 3

[0040] Apply coating to a transparent PET surface:

[0041] Step 1: Take the nano silica to add anhydrous ethanol, and the magnetic force is stirred for 15 min, the ultrasonic dispersion is 15 min to obtain a uniform nano silica dispersion, and the nano silica dispersion is placed in a container, controlling the temperature of the oil bath. It was 50 ° C, while magnetic force was stirred; orthosilicate was added, stirred for 15 min, adding hexamethylene silicane, and deionized water was added after 30min, and then the hydrophobic silica sol was obtained.

[0042] Step 2: 1 g of a hydrophobic silica sol obtained from the step, add 5 g of anhydrous ethanol, and at room temperature for 30 min, resulting in a uniform hydrophobic silica coating.

[0043] Step 3: Configure a gold nanowire solution having a concentration of 3 wt% to dry after cleaning the transparent PET with acetone. The dried transparent PET infiltrated into the gold nanowire solution, pulled the film at a rate of 0.2 ...

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Abstract

The invention discloses a preparation method of a super-hydrophobic anti-static transparent coating, and belongs to the technical field of preparation of multi-function coatings. In order to solve the problem that an existing coating is opaque and single in function, so that dust cannot be well prevented, the method comprises the following steps of preparing a metal nanowire solution, conducting ultrasonic cleaning on a substrate with an organic solvent, drying, soaking the substrate in the metal nanowire solution, and conducting drying after film forming through pulling; and soaking a film into hydrophobic silicon dioxide coating liquid, conducting drying after film forming through pulling, and obtaining the super-hydrophobic anti-static transparent coating. The silver nanowire is a transparent conductive agent, the hydrophobic silicon dioxide sol is used as a coating to enable the surface of a sample to achieve a super-hydrophobic effect, and the silver nanowire and the hydrophobic silicon dioxide sol are combined and coated on the surface of the sample, so that a very good dust-proof effect can be achieved. The multi-function coating disclosed by the invention has anti-static property, self-cleaning property and transparency at the same time, and various functions do not interfere with each other and have a synergistic effect, so that accumulation of dust on the surface of an object is reduced.

Description

Technical field [0001] The present invention belongs to the preparation of multi-function coatings, and more particularly to the preparation method of superhydrophobic antistatic transparent coatings. Background technique [0002] Due to the contact and friction during the use of the material, the surface will gradually have a charge accumulation, and the charged microparticles in the environment will accumulate in the surface of the material under the action of Van Dehua and electrostatic. Microofing of material surfaces not only cause product pollution, but also affects the product's work efficiency or even affects its service life. [0003] The super-hydrophobic coating is a novel coating having a special surface infiltration property. Generally, the contact angle of the coating and water is greater than 150 °, and the contact angle is lag less than 5 °, because of its specialty of self-cleaning, snow, anti-oxidation. Functionality has become one of the current research hotspo...

Claims

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Application Information

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Patent Type & Authority Applications(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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