Surface treatment method of bent glass plate

A technology for surface treatment and glass plate, applied in the surface treatment of curved glass plate and the field of surface cleaning of automobile glass, can solve the problems such as the inability to meet the requirements of coating sol-gel coating on the curved glass plate, and achieve the improvement of processing speed, The effect of improving the wetting performance

Active Publication Date: 2020-10-30
FUYAO GLASS IND GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a surface treatment method for curved glass plates in view of the shortcomings that the surface cleaning treatment technology in the prior art cannot meet the requirements of sol-gel coating on curved glass plates.

Method used

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  • Surface treatment method of bent glass plate
  • Surface treatment method of bent glass plate
  • Surface treatment method of bent glass plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0052] The plasma generator spray guns with annular plasma flow power of 1000W, 850W, 750W and 650W are used to perform plasma treatment on the concave surface of the curved glass plate, and the surface water droplets on the concave surface after plasma treatment are measured at different distances and moving speeds. contact angles and are reported in Table 1. The distances in Table 1 refer to the distance between the spray gun of the plasma generator and the concave surface of the curved glass plate.

[0053] Table 1: Plasma Treatment Results of Examples 1-8

[0054] Power (W) Distance (mm) Moving speed(mm / s) Surface water drop contact angle Example 1 1000 15 40 ＜5° Example 2 1000 15 80 ＜10° Example 3 850 10 40 ＜5° Example 4 850 10 80 ＜10° Example 5 750 10 40 ＜5° Example 6 750 10 80 ＜10° Example 7 650 8 40 ＜5° Example 8 650 8 80 ＜10°

[0055] It can be seen from Table 1 that under t...

Embodiment 9-10 and comparative example 1

[0057] The power of the annular plasma flow is selected as the plasma generator spray gun of 800W, and the concave surface of the curved glass plate is 10mm away from the plasma treatment, and compared with comparative example 1 using traditional cerium oxide polishing powder polishing, then after plasma treatment and The polished concave surface was coated with a coating, and the coated curved glass plate was subjected to a water boiling test, and the experimental results were recorded in Table 2.

[0058] In Table 2,

[0059] Polishing treatment: 15% mass fraction of cerium oxide aqueous dispersion, polishing treatment with a plane polishing machine;

[0060] Plasma treatment 30mm / s: the power of the annular plasma flow is 800W, the plasma generator spray gun is 10mm away from the concave surface of the curved glass plate, and the moving speed of the annular plasma flow is 30mm / s for plasma treatment;

[0061] Plasma treatment 10mm / s: the power of the annular plasma flow is...

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Abstract

The invention relates to the technical field of glass surface treatment, in particular to a surface cleaning method of automotive glass, and particularly provides a surface treatment method of a bentglass plate suitable for being coated with a sol-gel coating. The surface treatment method comprises the following steps of S1, preparing the bent glass plate with a convex surface and a concave surface; and S2, performing plasma treatment on the convex surface and / or the concave surface of the bent glass plate by using at least one annular plasma flow, wherein the surface water drop contact angleof the convex surface or the concave surface subjected to the plasma treatment is less than 10 degrees. According to the surface treatment method, oil stains or organic pollutants attached to the glass surface can be removed, the wettability of the glass surface is improved, the surface tension of the bent glass plate is rapidly treated to 70 mN / m or above, and therefore the coating requirement of a subsequent functional coating is met; and the treatment speed can be increased while the plasma treatment effect is met, and the surface treatment method can adapt to bent glass plates with different shapes, different sizes and different molded surfaces.

Description

Technical field: [0001] The invention relates to the technical field of glass surface treatment, in particular to a surface cleaning method for automobile glass, and specifically provides a surface treatment method for a curved glass plate suitable for coating sol-gel coatings. Background technique: [0002] In order to make automotive glass have functions such as blocking infrared rays, blocking ultraviolet rays, water repellency, anti-fog or anti-reflection, a sol-gel coating with specific functions can be formed on the surface of the glass plate by the sol-gel method, such as an infrared-blocking coating , UV blocking coating, hydrophobic coating, anti-fog coating or anti-reflection coating. [0003] Before coating the sol-gel coating on the surface of the glass plate, it is necessary to thoroughly clean the surface of the glass plate, and even achieve the effect of wetting the surface of the glass plate, so that the surface tension of the glass plate can meet the require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B11/04B08B7/00C03C23/00
CPCB08B11/04B08B7/00C03C23/006
Inventor 阳欢郭善济贾迎辉柯城
Owner FUYAO GLASS IND GROUP CO LTD
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