Preparation method of hydrophobic abrasion-proof film for automotive glass

A technology of automobile glass and wear-resistant film is applied in the field of preparation of hydrophobic film layer of automobile glass, which can solve the problems of film layer wear, reduce the hydrophobic effect of glass, poor wear resistance, etc., and achieve the effects of low cost, easy promotion, and no complicated steps.

Active Publication Date: 2014-08-13
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hydrophobic film of the prior art has poor wear resistance, and a certain degree of friction during use can easily lead to wear of the film layer, thereby reducing the hydrophobic effect of the glass. This is because hydrophobic glass has always been difficult to industrialize. one of the reasons

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment provides a method for preparing a hydrophobic and wear-resistant film for automotive glass, comprising the following steps:

[0032] Step 1. Cleaning and drying of the glass substrate:

[0033] After the glass substrate was ultrasonically cleaned with sulfuric acid and hydrogen peroxide solution (VH2SO4:VH2O2=7:3) for 1 hour, it was polished with 60 mesh cerium oxide polishing powder, then the residual cerium oxide was rinsed with deionized water, and finally the glass surface was allowed to dry;

[0034] Step 2, the preparation of film layer:

[0035] Preparation of SiO2 sol solution A: add 2.5g ammonia water (25-28wt%) to 50g ethanol, mix well and stir at room temperature for 10min, then add 0.6g tetraethyl orthosilicate to it and continue ultrasonic reaction at room temperature for 30min , the stirring speed is 120r / min, and the container is required to be sealed during the stirring process to prevent the volatile gas from escaping, so as to obtain S...

Embodiment 2

[0042] This embodiment provides a method for preparing a hydrophobic and wear-resistant film for automotive glass, comprising the following steps:

[0043] Step 1. Cleaning and drying of the glass substrate:

[0044] After the glass substrate was ultrasonically cleaned with sulfuric acid and hydrogen peroxide solution (VH2SO4:VH2O2=7:3) for 1 hour, it was polished with 100 mesh cerium oxide polishing powder, then the residual cerium oxide was rinsed with deionized water, and finally the glass surface was allowed to dry;

[0045] Step 2, the preparation of film layer:

[0046] Preparation of SiO2 sol solution A: Add 5.1g ammonia water (25-28wt%) to 90g acetone, mix well and stir at room temperature for 20min, then add 3.5g butyl orthosilicate to it and continue ultrasonic reaction at room temperature for 55min , the stirring speed is 400r / min, and the container is required to be sealed during the stirring process to prevent the volatile gas from escaping, so as to obtain SiO2 ...

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Abstract

The invention relates to a preparation method of a hydrophobic abrasion-proof film for an automotive glass. The preparation method is characterized by comprising the following steps: 1, cleaning and drying of a glass substrate, namely cleanly cleaning the glass substrate, then polishing by using cerium oxide polishing powder, then flushing residual cerium oxide by using deionized water, and finally drying a glass surface; 2, preparation of the film, namely after the glass surface is dried, firstly coating a film on the glass surface by using an SiO2 sol solution A to obtain an SiO2 film, drying at normal temperature, then coating a film on the surface of the SiO2 film by using a polyfunctional epoxide resin solution B to obtain a polyfunctional epoxide resin film, and then coating a film on the surface of the epoxide resin film by using a hydrophobing agent solution C to obtain a hydrophobing agent film; 3, curing processing: placing the glass coated with the film in the step 2 into a dustless environment, and standing at 100-150 DEG C for 1-2 hours to cure the film.

Description

technical field [0001] The invention belongs to the technical field of preparation of a hydrophobic film layer for automobile glass, and in particular relates to a method for preparing a hydrophobic and wear-resistant film layer for automobile glass. Background technique [0002] Automobile glass is mainly composed of silicate, and the surface energy of silicate is very high. When the car is driving on a rainy day, the rainwater falling on the glass surface will expand disorderly on the glass, resulting in poor light transmission of the glass, seriously It affects the driver's line of sight and brings potential safety hazards to traffic accidents. Although the wiper plays a certain role on the front and rear windshield glass, on the one hand, the wiper cannot cover all corners on the glass, and on the other hand, it is beyond the reach of the rearview mirror and the side window glass. Therefore, it is particularly important to coat the automotive glass with a layer of hydro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/42
Inventor 徐蕤洪丽熊建民
Owner CHERY AUTOMOBILE CO LTD
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