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Preparation method of self-cleaning antifogging astronomical telescope lens

A self-cleaning technology for astronomical telescopes, which is applied in the field of self-cleaning anti-fog astronomical telescope lenses, can solve the problems of high cost, waste of time and resources, cumbersome operation, etc., and achieve the effect of low cost, good adhesion performance and firm combination

Inactive Publication Date: 2019-12-20
福建中美友拓科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing coatings cannot solve the mist caused by the weather, and need to use the defogging agent several times to eliminate it. The operation is not only cumbersome, wastes time and resources, but also costs high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The self-cleaning anti-fog coating that is used for astronomical telescope mirror of the present embodiment comprises the following steps:

[0026] (1) Step 1: 6g of sodium citrate, 6g of dilute hydrochloric acid, 9g of nano-silica and 14g of isopropanol were stirred and mixed until a fine and uniform mixture A was formed;

[0027] (2) Step 2: Take 10 g of nano-sized titanium dioxide, 5 g of heptadecafluorodecyltriethoxysilane (FAS-17) and 14 g of isopropanol and stir and mix until a fine and uniform mixture B is formed.

[0028] (3) Step 3: Mix mixture A and mixture B from step 1 and step 2 and add 5g of nano-silver until the mixture is uniform to obtain a self-cleaning anti-fog coating;

[0029] (4) Step 4: Put the astronomical telescope lens in a mixed solution of 3% hydrogen peroxide (volume concentration) and 2mol / L dilute hydrochloric acid. The volume ratio of hydrogen peroxide and dilute hydrochloric acid is 1:1. After soaking for 0.8 hours, use deionized water ...

Embodiment 2

[0034] The main technical solution of this embodiment is basically the same as that of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here. The difference between this embodiment and embodiment 1 is:

[0035] (1) Step 1: Sodium citrate 8g, dilute hydrochloric acid 7g, nano silicon dioxide 16g and isopropanol 15g;

[0036] (2) Step 2: Nanoscale titanium dioxide 23g, heptadecafluorodecyltriethoxysilane (FAS-17) 8g and isopropanol 15g;

[0037] (3) Step 3: Add 9g of nano-silver;

[0038] (4) Step 4: Soak in a mixed solution of hydrogen peroxide and dilute hydrochloric acid for 1 hour;

[0039] (5) Step 5: Let it dry naturally for 18 minutes;

[0040] (6) Step 6: The lens is heat-treated in an oven at 80° C. for 30 minutes.

[0041] Wherein, the particle diameter of nano titanium dioxide is 5 nm, and the particle diameter of nano silicon dioxide is 5 nm.

Embodiment 3

[0043] The main technical solution of this embodiment is basically the same as that of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here. The difference between this embodiment and embodiment 1 is:

[0044] (1) Step 1: 13g of sodium citrate, 9g of dilute hydrochloric acid, 25g of nano silicon dioxide and 16g of isopropanol;

[0045] (2) Step 2: Nanoscale titanium dioxide 36g, heptadecafluorodecyltriethoxysilane (FAS-17) 12g and isopropanol 16g;

[0046] (3) Step 3: Add 14g of nano silver;

[0047] (4) Step 4: Soak in a mixed solution of hydrogen peroxide and dilute hydrochloric acid for 1.5 hours;

[0048] (5) Step 5: Let it dry naturally for 30 minutes;

[0049] (6) Step 6: The lenses were heat-treated in an oven at 85° C. for 36 minutes.

[0050] Wherein, the particle size of the nano-titanium dioxide is 8 nm, and the particle size of the nano-silicon dioxide is 8 nm.

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Abstract

The invention relates to a preparation method of a self-cleaning antifogging astronomical telescope lens. According to a preparation method of a self-cleaning antifogging coating, nano silicon dioxideis doped with nano titanium dioxide for the first time, the nano silicon dioxide, the nano titanium dioxide and nano silver are taken as main components to enable the coating to be self-cleaning andantifogging, the coating not only has a good self-cleaning effect, but also has a lasting antifogging effect, and a coating film has excellent antibacterial function. By the prepared self-cleaning antifogging coating film, a thin and transparent protecting film can be formed on the surface of the glass, the adhesive force of the film is high, a lens surface can be rapidly cleaned, rapid volatilization is implemented, and marks do not remain on the lens surface. Meanwhile, the prepared lens also has the characteristics of excellent self-cleaning, antifogging, stabilization and high transmittance properties and the like.

Description

technical field [0001] The invention relates to the technical field of functional coatings, in particular to a method for preparing a self-cleaning anti-fog astronomical telescope lens. Background technique [0002] The problem of environmental pollution has seriously affected people's daily life. As a result, many astronomers use astronomical telescopes outdoors. Particles such as environmental pollutants and atmospheric dust stay on the mirror surface, which reduces the transparency of the mirror surface. Aerosols form on the surface of the mirror, which will seriously affect the aesthetics of the mirror of the astronomical telescope, increase the time and cost of maintaining and cleaning the mirror, and cause waste of water resources during the cleaning process. According to statistics, all kinds of astronomical telescopes are basically plagued by cleaning problems, and directly affect the observations of astronomical researchers. The existing technology is to coat a lay...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/08C09D7/61C09D7/63C09D5/14G02B1/18
CPCC09D4/00C09D5/14C09D183/08C09D7/61C09D7/63G02B1/18
Inventor 郑羽桐徐涛黄晓玲冀亚雄赵未戴三瑜
Owner 福建中美友拓科技发展有限公司
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