Novel super-hydrophobic coating as well as preparation method and application thereof

A technology of super-hydrophobic coatings and super-hydrophobic coatings, applied in antifouling/underwater coatings, anti-corrosion coatings, alkali metal silicate coatings, etc., can solve the problem of harsh preparation process conditions of super-hydrophobic films, restricting industrial applications, and transparency In order to achieve the effect of various application methods, low cost and good water resistance

Inactive Publication Date: 2018-05-15
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the preparation methods of super-hydrophobic films reported in domestic and foreign literature are either harsh and time-consuming, high in cost, or poor in transparency, which restricts their industrial application.

Method used

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  • Novel super-hydrophobic coating as well as preparation method and application thereof
  • Novel super-hydrophobic coating as well as preparation method and application thereof
  • Novel super-hydrophobic coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A new type of superhydrophobic coating, the superhydrophobic coating is composed of glass glue, organic solvent (ethanol) and superhydrophobic SiO 2 powder prepared.

[0027] The preparation method of described novel superhydrophobic coating comprises the following steps:

[0028] 1) Mix glass glue and organic solvent (mixed solvent of acetone and ethanol, mixing volume ratio 1: 3 to get glass glue solution;

[0029] 2) Add superhydrophobic SiO to the glass glue solution 2 The suspension obtained by mixing the powder is the superhydrophobic coating.

[0030] In step 1), the mass fraction of glass glue in the glass glue solution is 1.5%.

[0031] In step 1), when mixing, first ultrasonically disperse for 20 minutes, and then magnetically stir for 10 minutes.

[0032] Step 2), superhydrophobic SiO 2 The mass fraction of the powder in the suspension is 5%; the superhydrophobic SiO 2 The powder is added by ultrasonic mixing, and the ultrasonic time is 20min.

Embodiment 2

[0034] A novel superhydrophobic coating and preparation method thereof, differs from Example 1 in that the organic solvent is a mixed solvent of acetone and ethanol, and the mixing volume ratio is 1:1. In step 1), the mass fraction of glass glue in the glass glue solution is 1%; in step 2), the superhydrophobic SiO 2 The mass fraction of the powder in the suspension is 0.5%; the rest are the same as in Example 1.

Embodiment 3

[0036] A novel superhydrophobic coating and preparation method thereof, the difference from Example 1 is that the organic solvent is toluene; in step 1), the mass fraction of glass glue in the glass glue solution is 3%; in step 2), Superhydrophobic SiO 2 The mass fraction of the powder in the suspension is 3%; the rest are the same as in Example 1.

[0037] Performance testing and application:

[0038] 1. SiO in suspension 2 The effect of different mass fractions on the contact angle and light transmittance of the coating

[0039] When the mass fraction of glass glue in the glass glue solution is constant (1.5%), changing the SiO 2 The mass fraction of the mass fraction is prepared respectively when the mass fraction is 0.5%, 1%, 2%, 5%, 10%, and 20%. When the mass fraction of the glass glue is changed to 10%, 20%, and 30%, respectively, change SiO2 2 The mass fraction of the obtained coatings is recorded as sample 1 to sample 9 successively. Each coating is coated on the...

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Abstract

The invention discloses a novel super-hydrophobic coating. The novel super-hydrophobic coating is prepared from glass cement, an organic solvent and super-hydrophobic SiO2 powder. A preparation methodcomprises the following steps: firstly, mixing the glass cement with the organic solvent to obtain a glass cement solution; secondly, adding the super-hydrophobic SiO2 powder into the glass cement solution to obtain suspension, namely the super-hydrophobic coating. The super-hydrophobic coating prepared by the preparation method disclosed by the invention has the advantages of better waterproof property, fouling resistance and easiness in cleanness; the novel super-hydrophobic coating can be applied to the fields of timber damp resistance, metal corrosion prevention, fog resistance and the like; in addition, the obtained super-hydrophobic coating is a transparent super-hydrophobic surface.

Description

technical field [0001] The invention belongs to the technical field of super-hydrophobic film preparation, and in particular relates to a novel super-hydrophobic coating and its preparation method and application. Background technique [0002] In recent years, superhydrophobic surface materials (the contact angle CA with water droplets is greater than 150°, and the rolling angle is less than 5°) have attracted widespread attention from scientific and technological workers in various industries at home and abroad. The typical characteristics of a super-hydrophobic surface are: putting water or water-based liquid droplets on a super-hydrophobic surface will form spherical water (liquid) beads, as long as the surface is tilted at a small angle or under the action of a breeze, Water (liquid) beads will quickly roll off the super-hydrophobic surface, taking away dust and other dirt on the surface at the same time, playing a self-cleaning effect. In addition, the super-hydrophobic...

Claims

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Application Information

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IPC IPC(8): C09D1/02C09D5/16C09D5/08
CPCC09D1/02C09D5/08C09D5/1687
Inventor 鲁浈浈许里杰张洪黄启舒韩振中周磊
Owner CHONGQING JIAOTONG UNIVERSITY
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