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Preparation methods of antifog composition and antifog automobile glass

A technology of automobile glass and composition, which is applied in the field of anti-fog composition and anti-fog automobile glass preparation, which can solve problems such as fogging, loss, resistance to wiping and flow with water film, etc., and achieve good durability and good anti-fog performance Effect

Active Publication Date: 2013-12-25
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention designs an anti-fog composition and a preparation method for anti-fog automobile glass, which solves the problem of fogging of automobile glass in an environment with a large temperature and humidity difference, especially solves the short service life of the anti-fog composition, and Resistance to wiping and loss with water film flow

Method used

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  • Preparation methods of antifog composition and antifog automobile glass
  • Preparation methods of antifog composition and antifog automobile glass
  • Preparation methods of antifog composition and antifog automobile glass

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Embodiment 1

[0031] Embodiment 1: This embodiment provides a method for preparing an anti-fog composition for glass, comprising the following steps: dibasic organic carboxylic acid Mix with deionized water to obtain a concentration of 70wt% dibasic organic carboxylic acid aqueous solution, dibasic organic carboxylic acid aqueous solution and organosiloxane Mixing, wherein the amount of organosiloxane added accounted for 10% of the total solution, and then stirred in an oil bath at 125°C at a stirring speed of 800 rpm for 2 hours to obtain the first solution. Silicate , 0.1M hydrochloric acid and isopropanol mixed, wherein the silicate The addition amount of the hydrochloric acid accounted for 5.60wt% of the total solution, the addition amount of 0.1M hydrochloric acid accounted for 4.20wt% of the total solution, and the balance was isopropanol. Stir in a 60°C water bath for 2 hours to obtain a second solution. The first solution and the second solution were mixed according to a mass...

Embodiment 2

[0033] Embodiment 2: This embodiment provides a method for preparing an anti-fog composition for glass, comprising the following steps: dibasic organic carboxylic acid Mix with deionized water to obtain a concentration of 65wt% dibasic organic carboxylic acid aqueous solution, dibasic organic carboxylic acid aqueous solution and organosiloxane Mixing, wherein the amount of organosiloxane added accounted for 15wt% of the total solution, and then stirred in an oil bath at 120°C at a stirring speed of 800 rpm for 3 hours to obtain the first solution. Silicate , 0.1M nitric acid and isopropanol mixed, the silicate The addition amount of the hydrochloric acid accounted for 5.60wt% of the total solution, the addition amount of 0.1M hydrochloric acid accounted for 4.20wt% of the total solution, and the balance was isopropanol. Stir in a 40°C water bath for 2 hours to obtain a second solution. The first solution and the second solution were mixed according to a mass ratio of 1:1...

Embodiment 3

[0035] Embodiment 3: This embodiment provides a method for preparing an anti-fog composition for glass, comprising the following steps: dibasic organic carboxylic acid Mix with deionized water to obtain a concentration of 70wt% dibasic organic carboxylic acid aqueous solution, dibasic organic carboxylic acid aqueous solution and organosiloxane Mixing, wherein the amount of organosiloxane added accounted for 25% of the total solution, and then stirred in an 80°C oil bath at a stirring speed of 800 rpm for 8 hours to obtain the first solution. Silicate , 0.1M hydrochloric acid and absolute ethanol / isopropanol (absolute ethanol: isopropanol = 1:1, volume ratio) are mixed, and the silicate The addition amount of the hydrochloric acid accounted for 14.0wt% of the total solution, the addition amount of 0.1M hydrochloric acid accounted for 10.5wt% of the total solution, and the balance was absolute ethanol / isopropanol. Stir in a 50°C water bath for 1.5 hours to obtain a second ...

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Abstract

The invention relates to preparation methods of an antifog composition and antifog automobile glass. The preparation method of the antifog composition comprises the steps of: 1, stirring organosilane containing hydrophilic functional groups and binary organic carboxylic acid at 80-130 DEG C for reaction to form a first solution, 2, stirring 5.6-14.0wt% of silicate ester and the balance of organic solvent under an acidic condition at 40-60 DEG C to form a second solution, 3, mixing and stirring the first solution and the second solution according to a mass ratio of 1:(5-10) in proportion at 40-60 DEG C to form a third solution, and 4, adding a mixed solution of a non-ionic surfactant and distilled water into the third solution, and uniformly stirring, wherein the weight percentage of an acid catalyst is 4.2-10.5%. According the preparation methods, nano SiO2 collosol, the anionic surfactant and a silane coupling agent containing the hydrophilic functional groups serve as major compositions, so that the automobile glass is endowed with a good antifog property, and has good durability.

Description

technical field [0001] The invention relates to a material surface treatment object and method, in particular to an anti-fog composition and a method for preparing anti-fog automotive glass. Background technique [0002] On rainy days in winter or summer, there is a large temperature difference between the inside and outside of the car. When the temperature of the inner surface of the glass reaches the dew point temperature, water vapor will condense on the glass surface, forming a dense layer of small water droplets that block the vision, and the car glass fogs up. The safe driving of the driver brings great trouble, especially when the front window, windshield and inner rearview mirror of the car are fogged, it will seriously affect the driver's line of sight and bring hidden dangers to safe driving. [0003] At present, the methods of preventing the glass from fogging on the automobile glass usually include turning on the air conditioner or hot air to drive the fog, manua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18C03C17/30
Inventor 陈大华熊建民洪丽
Owner CHERY AUTOMOBILE CO LTD