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Anti-fog liquid and preparation method thereof

An anti-fog liquid and preservative technology, which is applied in the field of daily chemical industry, can solve the problems of large anti-fog formula, high production equipment requirements, and unsustainable anti-fog effect, and achieve enhanced anti-fog effect, low equipment requirements, The effect of prolonging the timeliness

Active Publication Date: 2019-06-04
合肥酷飞新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the anti-fogging agents on the market mainly have shortcomings such as the unsustainable anti-fogging effect, the anti-fogging agent formula contains a large amount of organic solvents that are harmful to the human body or the environment, and the requirements for production equipment are high.

Method used

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  • Anti-fog liquid and preparation method thereof
  • Anti-fog liquid and preparation method thereof
  • Anti-fog liquid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An anti-fog liquid, in terms of mass percentage, is mainly prepared from the following raw materials: polyethylene glycol 400 0.05%, a mixture of polyvinyl alcohol and polyacrylic acid 1.05%, 3-aminopropyltriethoxysilane 0.05% , propylene glycol 1%, distilled water balance

[0026] The preparation method of described anti-fog liquid is:

[0027] (1) Add 3-aminopropyltriethoxysilane to polyethylene glycol 400, heat up to 50-100°C, stir for 1min-12h, and stir to obtain silicone-modified polyethylene glycol 400;

[0028] (2) Add polyvinyl alcohol and polyacrylic acid to distilled water successively according to the mass ratio of 1:1, stir evenly, add propylene glycol and stir;

[0029] (3) Add the silicone-modified polyethylene glycol 400 obtained in step (1) to the reaction material in step (2) and stir evenly to obtain the anti-fog liquid.

Embodiment 2

[0031] An anti-fog liquid, in terms of mass percentage, is mainly prepared from the following raw materials: polyethylene glycol 400 6%, a mixture of polyvinyl alcohol and polyacrylic acid 7.05%, 3-aminopropyltriethoxysilane 3.15% , 1.6% of propylene glycol methyl ether, 3.2% of propylene glycol butyl ether, 1.3% of carboxymethyl cellulose, 0.05% of isothiazolinone preservatives, and the balance of distilled water.

[0032] The preparation method of described anti-fog liquid is:

[0033] (1) Add 3-aminopropyltriethoxysilane to polyethylene glycol 400, heat up to 50-100°C, stir for 1min-12h, and stir to obtain silicone-modified polyethylene glycol 400;

[0034] (2) Add polyvinyl alcohol and polyacrylic acid to distilled water in sequence according to the mass ratio of 5:1, stir evenly, add propylene glycol methyl ether, propylene glycol butyl ether, carboxymethyl cellulose, and isothiazolinone preservatives, stir and mix well ;

[0035] (3) Add the silicone-modified polyethyl...

Embodiment 3

[0037] An anti-fog liquid, in terms of mass percentage, is mainly prepared from the following raw materials: polyethylene glycol 400 10%, a mixture of polyvinyl alcohol and polyacrylic acid 8%, 3-aminopropyltriethoxysilane 5% , 10% propylene glycol, 3% carboxymethyl cellulose, 0.05% isothiazolinone preservatives, and the balance of distilled water.

[0038] The preparation method of described anti-fog liquid is:

[0039] (1) Add modification additives to polyethylene glycol 400, heat up to 50-100°C, stir for 1min-12h, and stir to obtain silicone-modified polyethylene glycol 400;

[0040] (2) Add polyvinyl alcohol and polyacrylic acid to distilled water successively according to the mass ratio of 8:1, stir well, add propylene glycol, carboxymethyl cellulose, isothiazolinone preservatives and stir well;

[0041] (3) Add the silicone-modified polyethylene glycol 400 obtained in step (1) to the reaction material in step (2) and stir evenly to obtain the anti-fog liquid.

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Abstract

The invention discloses an anti-fog liquid, which is composed of the following ingredients (by weight): 0.05-10% of a polyol polymer, 0.05-10% of a hydrophilic polymer film forming agent, 0.05-5% of amodification agent, and the balance distilled water. The invention also discloses a method for preparing the anti-fog liquid. In comparison with the prior art, the invention has the following beneficial effects: by combining the organosilicon modified polyol polymer and the film forming agent and an effective additive, water spray is rapidly spread to prevent the formation of fog before formation, and a layer of hydrophilic lasting anti-fog film is formed on the material surface. Meanwhile, with the doping of organosilane, timeliness of the anti-fog effect is greatly prolonged. Multi-stage high-molecular polymer of different molecular weight forms a micro-nanostructure, thus enhancing the anti-fog effect. The synthetic method of the invention is simple, has low requirements on equipment,and is easy for large-scale production. The anti-fog liquid contains no surfactant with rich foams, rapidly forms a film after being sprayed, will not affect the sight, is nontoxic and environmentally-friendly, and is convenient to use.

Description

Technical field [0001] The invention relates to the field of daily chemicals, specifically an anti-fog liquid and a preparation method thereof. Background technique [0002] Transparent optical materials, such as polycarbonate (PC) boards, polyethylene (PE) and silicate glass, are indispensable materials in modern production work and life. However, in actual use, these transparent materials will produce fogging under the combined action of temperature and humidity. The reason for fogging is that the moisture in the air condenses on the surface of the transparent materials and forms a large number of small water droplets. Due to the The difference in curvature radius causes the light irradiating on the surface of the transparent substrate to be diffusely reflected and become opaque or have poor transparency, seriously blocking the line of sight and affecting people's work and life. This fogging phenomenon will cause many problems during the use of these materials. For exampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D129/04C09D133/02C09D7/63C09K3/18
Inventor 董晓磊刘红梅王海千
Owner 合肥酷飞新材料科技有限公司
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