Method for preparing thermal insulation antifog membrane for automotive glass

A technology of automobile glass and anti-fog film, which is applied in the field of preparation of heat-insulating anti-fog film for automobile glass, which can solve the problems of poor durability of anti-fog function and incomplete anti-fog effect, and achieve the effect of eliminating fog generation

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

[0005] The present invention designs a method for preparing heat-insulating and anti-fog film for automotive glass. The technical problem it solves is that the current spontaneous anti-fog technology is to deal with the water droplets produced by condensation to prevent fog, and the anti-fog effect is not complete. and poor durability of the anti-fog function

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Preparation of thermal insulation resin;

[0023] Add 20g 1-propylene glycol methyl ether acetate-2 and 12g TDI aromatic isocyanate to 50g ethyl acetate, stir at room temperature for 2h, then add 5g 10nm mesoporous silica and 0.2g polyether alkyl siloxane leveling agent, Stir at room temperature for 1 hour to obtain thermal insulation resin.

[0024] 2. Preparation of anti-fog film;

[0025] The glass surface was first degreasing with methanol, then physically polished, washed with tap water and distilled water respectively, and then dried for use.

[0026] The surface of the clean and dry automobile glass is coated with an insulating resin system. The coating process is spraying. After the coating is completed, the surface is sprayed with a transparent nano-silver solution, and then placed at room temperature for leveling. After leveling, the glass film layer is placed on the surface. Place at 100°C for 1h.

[0027] Fogging occurred at the beginning of the film l...

Embodiment 2

[0029] 1. Preparation of thermal insulation resin;

[0030] Add 20g 1-propylene glycol methyl ether acetate-2 and 12g TDI aromatic isocyanate to 50g ethyl acetate, stir at room temperature for 2h, then add 5g 10nm mesoporous silica and 0.2g and 10g transparent nano-silver solution polyether alkyl silicon Oxane leveling agent, stirring at room temperature for 1h.

[0031] 2. Preparation of anti-fog film;

[0032] The glass surface was first degreasing with methanol, then physically polished, washed with tap water and distilled water respectively, and then dried for use.

[0033] Stir 1 g of N-(2-aminoethyl)-3-aminopropylmethyldimethoxysilane and 49 g of water at room temperature for 1 h, then add ethanol, and continue stirring for 10 min to obtain a coupling agent solution. The dry and clean glass surface was wiped with the prepared coupling agent solvent, and then placed at 100 °C for 1 h.

[0034] The surface of the automobile glass treated with the coupling agent solution...

Embodiment 3

[0037] 1. Preparation of thermal insulation resin;

[0038] Add 20g hydroxy acrylate A450 (Bayer) and 12g TDI aromatic isocyanate to 50g ethyl acetate, stir at room temperature for 2h, then add 7g 20nm silicon dioxide and 0.2g polyether alkyl siloxane leveling agent, stir at room temperature 1h, the heat insulating resin is obtained.

[0039] 2. Preparation of anti-fog film;

[0040] The glass surface was first degreasing with methanol, then physically polished, washed with tap water and distilled water respectively, and then dried for use.

[0041] The surface of the clean and dry automobile glass is coated with an insulating resin system. The coating process is spraying. After the coating is completed, the surface is sprayed with a transparent nano-silver solution, and then placed at room temperature for leveling. After leveling, the glass film layer is placed on the surface. Place at 100°C for 1h.

[0042] Fogging appeared at the beginning of the film layer, the fog disa...

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PUM

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Abstract

The invention relates to a method for preparing a thermal insulation antifog membrane for automotive glass. The method comprises the following steps of 1. preparing a thermal insulation resin; 2. preparing a thermal insulation resin membrane on the surface of the glass, and 3. preparing a heat conductive membrane on the thermal insulation resin membrane. According to the method, the thermal insulation membrane and the heat conductive membrane are prepared on the surface of the glass, the thermal insulation membrane can prevent most heat in and out of the automobile from transferring through the glass, the heat conductive membrane can guarantee the surface temperature to be always consistent with the air temperature, when hot air in the automobile runs into the glass, the temperature of the hot air is not lowered, so that the steam is not condensed in the air, fogging does not appear, the generation of the fog is avoided fundamentally, and the prepared thermal insulation antifog membrane has a long-term spontaneous antifog effect.

Description

technical field [0001] The invention relates to a preparation method of a heat insulating and antifogging film layer for automobile glass. Background technique [0002] In the cold winter or rainy season, the water vapor in the hot air in the car will form fog droplets on the surface of the cold glass, which greatly reduces the visible light transmittance of the glass, affects the driver's vision, and easily leads to traffic accidents. Because there is no hot air from the engine in an electric vehicle, it is necessary to turn on the air conditioner to remove fog. According to relevant tests, the power consumption of air conditioner defogging will increase by 10-15%. [0003] The fogging of car glass is generally in cold winter or rainy days, when the temperature outside the car is low, and the temperature in the car will be significantly higher than that outside the car due to the activities of people, and the water vapor exhaled by the people in the car will increase. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/38
Inventor 熊建民陈大华洪丽
Owner CHERY AUTOMOBILE CO LTD
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