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Super-hydrophobic glass coating and preparation method thereof

A glass coating and super-hydrophobic technology, which is applied in the field of super-hydrophobic glass coating and its preparation, can solve the problems of not being obvious enough, the coating is not durable, etc., and achieve the effect of improving anti-fingerprint

Inactive Publication Date: 2017-05-31
安徽凯盛基础材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can reduce the residue of fingerprints, water stains, and oil stains on the glass, making it easy to clean up the adhered stains and fingerprints. Due to the limitations of the nature of the coating and the operating process, the coating is not durable and the effect is not significant enough

Method used

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  • Super-hydrophobic glass coating and preparation method thereof

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[0024] Such as figure 1 As shown, the present invention provides a superhydrophobic glass coating and a preparation method thereof, comprising a nanoporous glass membrane 2 and a low surface energy hydrophobic membrane 3 attached to the surface of the glass 1 in sequence from the inside to the outside, and the thickness of the nanoporous glass membrane 2 150-1000nm, the pore size of the nanoporous glass membrane 2 is 1-100nm; the low-surface-energy hydrophobic membrane 3 is siloxane or fluorinated siloxane with a thickness of 1-20nm, and the surface energy of the low-surface-energy hydrophobic membrane 3 is less than 40mN / m, siloxane or fluorinated siloxane is attached to the outer surface of the nanoporous glass membrane 2 and the inner wall of the nanoporous glass membrane pores 2a; preferably, the nanoporous glass membrane 2 contains mole fraction of 80-100% Amorphous silicon oxide, 0-12% boron oxide and 0-8% sodium oxide.

[0025] On the basis of the above, the nanoporous...

Embodiment 1

[0029] A preparation method for superhydrophobic glass coating, comprising the following steps:

[0030] S1. Use ethanol and deionized water to ultrasonically clean the aluminosilicate glass substrate in sequence for 10 minutes, and then treat the glass substrate with a mixed solution of 98% concentrated sulfuric acid and 30% hydrogen peroxide at a volume ratio of 3:1 for 15 minutes to make the glass substrate 1 clean and easy to clean. deposition and bonding surfaces;

[0031] S2. Use the vacuum radio frequency magnetron sputtering process to coat the glass film on the glass substrate. The sputtering target is composed of 65-78% silicon oxide, 9-14% sodium oxide and 18-24% boron oxide. Mixed target material; before sputtering, vacuum to 4×10 -4 Pa, the glass substrate is heated to 350°C, the argon flow rate is 50sccm, the sputtering power is 450W, and the sputtering time is 15min;

[0032] S3, heat-treat the obtained glass film in a box-type resistance furnace at 500° C. fo...

Embodiment 2

[0037] A preparation method for superhydrophobic glass coating, comprising the following steps:

[0038] S1. Use ethanol and deionized water to ultrasonically clean the quartz glass substrate in sequence for 15 minutes, and then treat the glass substrate with a mixed solution of 98% concentrated sulfuric acid and 30% hydrogen peroxide at a volume ratio of 3:1 for 20 minutes to make the glass substrate 1 clean, easy to deposit and bond. fit surface;

[0039] S2. Use the vacuum radio frequency magnetron sputtering process to coat the glass film on the glass substrate. The sputtering target is composed of 65-78% silicon oxide, 9-14% sodium oxide and 18-24% boron oxide. Mixed target material; before sputtering, vacuum to 4×10-4 Pa, the glass substrate is heated to 200°C, the flow rate of argon gas is 40sccm, the sputtering power is 400W, and the sputtering time is 10min;

[0040] S3, heat-treating the obtained glass film in a box-type resistance furnace at 700° C. for 3 hours, so...

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Abstract

The invention discloses a super-hydrophobic glass coating and a preparation method thereof. The super-hydrophobic glass coating comprises a nanoporous glass film and a low-surface-energy hydrophobic film which are attached to the glass surface sequentially from inside to outside, wherein the thickness of the nanoporous glass film is 150-1000 nm, the pore size thereof is 1-100 nm, the low-surface-energy hydrophobic film refers to siloxane or fluorinated siloxane with the thickness being 1-20 nm, and the surface energy of the low-surface-energy hydrophobic film is less than 40 mN / m. The preparation method includes sputtering a glass film on a glass substrate, performing heat treatment to enable the glass film to achieve phase separation and subjecting the glass film to acid washing so as to obtain the nanoporous glass film; performing dip-coating of the low-surface-energy hydrophobic film so as to obtain the super-hydrophobic glass coating. The super-hydrophobic glass coating and the preparation method thereof have the advantages that a water contact angle is above 150 degrees, so that a super-hydrophobic surface can be obtained, and anti-fingerprint, anti-oil and hydrophobic effects are improved; the low-surface-energy material can be attached to the outer surface of the nanoporous glass film and the inner walls of nanoporous glass film layer pores, and accordingly the super-hydrophobic glass coating with the surface worn has the same super-hydrophobic performance.

Description

technical field [0001] The invention relates to the technical field of glass surface film formation, in particular to a superhydrophobic glass coating and a preparation method thereof. Background technique [0002] The surface of an object with a water contact angle greater than 90° is hydrophobic, while the surface of an object with a water contact angle above 150° is superhydrophobic. The superhydrophobic surface is not only hydrophobic but also oleophobic. With the advancement of modern technology, more and more electronic display products use touch screens. At present, capacitive touch screens have become the mainstream touch screen technology in the world, and the outermost cover glass of capacitive touch screens has become one of the key materials of touch screens. Regrettably, fingerprints, oil, and sweat on hands will inevitably remain on the screen surface when using the product, which will not only lead to a rapid decline in the readability of the touch panel, affe...

Claims

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Application Information

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IPC IPC(8): C03C17/42
Inventor 鲍田倪嘉王东甘治平王芸
Owner 安徽凯盛基础材料科技有限公司
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