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Method for rapidly judging cleaning performance of mildew-proof or isolating powder on surface of glass

A glass surface and measurement method technology, applied in the field of material science, can solve the problem of not being able to timely and comprehensively reflect the suitability of anti-mildew or isolating powder and glass anti-mildew or isolating powder and glass cutting fluid, adhesion, increase the difficulty of glass And other issues

Active Publication Date: 2020-05-01
南京汉旗新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) Anti-mold performance test: When observing the anti-mold performance of the glass, the glass will be taken out according to the time set in the test, and the surface will be observed after cleaning to see if the surface is moldy. At this time, the cleaning performance of the powder on the glass surface can also be seen, but It usually takes several days to wait, and sometimes mold and uncleanness cannot be strictly distinguished
[0006] (2) Temperature resistance test: After the glass is sprayed with powder, keep it warm at 90°C for a certain period of time (4-6 hours), and then observe whether the powder will stick to the glass and cause cleaning. In this experiment, only the temperature is affected, and the cleaning performance is observed. Not comprehensive enough
[0007] It can be seen that the above two methods take a long time, and the accuracy and integrity of the test results are also weak, which cannot timely and comprehensively reflect the relationship between the anti-mildew or insulating powder and the glass, and the cutting of the anti-mildew or insulating powder and the glass. Compatibility between liquids
[0008] However, in the prior art, there is no method for testing the cleaning performance of the anti-mildew or spacer powder on the corresponding glass before applying the anti-mildew or spacer powder to the glass. In actual production operations, a certain batch of Several days or even more than ten days after the anti-mildew or isolation powder was applied to the glass for the second time, it was found that the anti-mildew or isolation powder used had poor cleaning performance for this batch of glass, and it was difficult to completely clean it with conventional cleaning methods. The anti-mildew or isolation powder used, which increases the difficulty of subsequent deep processing of the corresponding glass, or uses unconventional methods to wash off the anti-mildew or isolation powder, thereby delaying the subsequent deep processing of the corresponding glass. great waste

Method used

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  • Method for rapidly judging cleaning performance of mildew-proof or isolating powder on surface of glass

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A kind of measuring method of the cleaning performance of polymethyl methacrylate (PMMA) on glass surface, comprises the following steps: the spacer powder PMMA powder (particle diameter 150 microns, marked as sample 1 respectively of two kinds of different manufacturers to be tested) and sample 2) were evenly sprayed on the surface of multiple pieces of coated glass to be tested in the same batch (the amount of powder spraying is 1.0g / ㎡), and then kerosene (3-5 drops, scattered in several places) was dropped onto the glass, and the kerosene was After being fully infiltrated with the powder, stack multiple pieces of glass sprayed with the same powder on top of each other, put them in an oven (80°C) and keep them warm for 30 minutes, take them out and cool them to room temperature, clean the glass surface with clean water at room temperature, and observe Whether there is sticking phenomenon or spots that cannot be cleaned off on the surface of each piece of glass. The re...

Embodiment 2

[0035]A method for measuring the cleaning performance of boric acid on glass surfaces, comprising the following steps: the anti-mold powder boric acid powder (80 microns in particle diameter, respectively marked as sample 3 and sample 4) of two different manufacturers to be tested, respectively uniform Spray on the surface of multiple pieces of float glass to be tested in the same batch (the amount of powder spraying is 1.2g / ㎡), and then drop kerosene (3-5 drops, scattered in several places) onto the glass. After the kerosene and powder are fully infiltrated, Then put multiple pieces of glass sprayed with the same powder on top of each other and put them in an oven (60°C) to keep warm for 1 hour, take them out and cool to room temperature, clean the glass surface with normal temperature water, and observe whether there is any stain on the surface of each piece of glass. Adhesion or spots that cannot be washed off. The results show:

[0036] The glass surface of sample 3 has a...

Embodiment 3

[0039] A method for measuring the cleaning performance of fumaric acid and polyethylene mixed powder on glass surface, comprising the following steps: two kinds of anti-mold powder fumaric acid and polyethylene mixed powder (average particle diameter) 200 microns, respectively marked as sample 5 and sample 6), were evenly sprayed on the surface of the same batch of rolling glass to be tested (the amount of powder spraying is 1.2g / ㎡), and then kerosene was added dropwise (3-5 drops, dispersed for several place) onto the glass, after the kerosene and the powder are fully infiltrated, stack multiple pieces of glass sprayed with the same powder on top of each other, put them in an oven (60°C) and keep them warm for 1 hour, take them out and cool them to room temperature, and use Clean the glass surface by scrubbing with a cleaning machine in the glass factory, and observe whether there is any bonding phenomenon or spots that cannot be cleaned off on the surface of each piece of gla...

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Abstract

The invention discloses a method for rapidly judging the cleaning performance of mildew-proof or isolating powder on the surface of glass. The method comprises the following steps that (1) mildew-proof or isolating powder to be tested is uniformly sprayed on the surface of glass to be tested; (2) kerosene is dropwise added on the glass sprayed with the mildew-proof or isolating powder, after the kerosene on the glass is fully infiltrated with the mildew-proof or isolating powder, a plurality of sheets of glass are stacked and then fed into a drying device to be heated and dried for 0.2-2h; and(3) after drying, cooling is performed, the glass is cleaned, and whether the surface of each sheet of glass has a bonding phenomenon or a spot which cannot be cleaned or not is observed. Compared with the prior art, the method has the advantages of being convenient and rapid, strong in operability, accurate in measurement result and high in reproducibility, can perform measurement in a general conventional laboratory, and provides a reliable reference basis for selecting a suitable mildew-proof isolating powder material. In addition, an effective guarantee is provided for development, production and quality control of powder products.

Description

technical field [0001] The invention relates to a measurement method for quickly judging the cleaning performance of anti-mildew or isolation powder on the glass surface, which belongs to the field of material science. Background technique [0002] In the glass manufacturing industry, in order to avoid huge losses due to glass surface erosion and bonding, the most popular method in the world is to spray glass anti-mildew or isolation powder on the glass surface. [0003] The anti-mildew powder is mixed with solid acid anti-mildew material and high molecular polymer. After passing the test of particle size, fluidity, anti-scratch performance, acid value and moisture, it is evenly sprayed on the glass surface. Based on the fact that the current glass industry basically needs to carry out subsequent processes of deep processing, the requirements for surface cleaning performance after powder spraying and long-term storage of original glass sheets are getting higher and higher. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/00G01N33/0091
Inventor 朱虹陈道云李建红李忠程道远
Owner 南京汉旗新材料股份有限公司