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Glass polishing liquid, preparation method thereof, and method of using same for polishing treatment

A polishing liquid and glass technology, applied in the chemical field, can solve the problems of easy sedimentation, agglomeration and agglomeration of polishing powder particles, and particle loss.

Active Publication Date: 2021-12-07
BYD CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] CeO 2 There are following disadvantages in the polishing liquid prepared by directly adding water to the polishing powder to the required concentration: only a small amount or no dispersant is added in the polishing powder, CeO 2 The particle suspension effect is poor, and it is easy to settle after standing still, and the polishing powder particles agglomerate and agglomerate after settling, making it difficult to redisperse; on the other hand, the overflow of the foam in the liquid storage tank causes CeO 2 The loss of particles will increase the consumption of polishing powder and cause waste; in addition, the concentration of polishing liquid in production is measured by measuring the specific gravity, and the existence of foam will significantly affect the measurement results, thereby affecting the judgment of production personnel

Method used

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  • Glass polishing liquid, preparation method thereof, and method of using same for polishing treatment
  • Glass polishing liquid, preparation method thereof, and method of using same for polishing treatment
  • Glass polishing liquid, preparation method thereof, and method of using same for polishing treatment

Examples

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Effect test

Embodiment 1

[0066] Embodiment 1 prepares glass polishing liquid

[0067] The composition and weight percent of the first concentrated solution in the present embodiment are as follows:

[0068] The middle cerium polishing powder (CeO 2 The mass percentage of lanthanum oxide is 80%; the mass percentage of lanthanum oxide is 20%; particle size: D50: 0.55 μm; D90: 1.46 μm, specific gravity 6.5);

[0069] 3 parts by weight of sodium hexametaphosphate (total phosphate (in P 2 o 5 The mass percent content of meter) is 68.1%; Inactive phosphate (in P 2 o 5 The mass percent composition of total) is 6.5%; the mass percent composition of water-insoluble matter is 0.03%);

[0070] The sodium dodecylsulfonate of 0.002 parts by weight;

[0071] 46.998 parts by weight of water (conventional water).

[0072] The manufacturing process of this first concentrated solution is:

[0073] In the first tank (the tank body is made of polyvinyl chloride, with a volume of 500L and an inner diameter of 700m...

Embodiment 2

[0085] Embodiment 2 prepares glass polishing fluid

[0086] Compared with Example 1, sodium fluoride was added in the second concentrate.

[0087] The composition and manufacturing process of the first concentrated solution in this embodiment are the same as those in Embodiment 1.

[0088] The composition and weight percent of the second concentrated solution in the present embodiment are as follows:

[0089] The middle cerium polishing powder (CeO 2 The mass percentage of lanthanum oxide is 80%; the mass percentage of lanthanum oxide is 20%; particle size: D50: 0.55 μm; D90: 1.46 μm, specific gravity 6.5);

[0090] 0.3 parts by weight of polyacrylic acid (CH 2 CH) n COOH);

[0091] 0.3 parts by weight of polyethylene glycol PEG-4000 (HO(CH 2 CH 2 O) n H);

[0092] The sodium fluoride (NaF) of 0.2 parts by weight;

[0093] The sodium chloride (NaCl) of 0.2 parts by weight;

[0094] 0.2 parts by weight of barium metaborate (Ba(BO 2 ) 2 );

[0095] 48.8 parts by we...

Embodiment 3

[0099] Embodiment 3 glass polishing liquid

[0100] The composition and weight percent of the first concentrated solution in the present embodiment are as follows:

[0101] The middle cerium polishing powder (CeO 2 The mass percentage of lanthanum oxide is 80%; the mass percentage of lanthanum oxide is 20%; particle size: D50: 0.55 μm; D90: 1.46 μm, specific gravity 6.5);

[0102] 2 parts by weight of sodium hexametaphosphate (total phosphate (in P 2 o 5 The mass percent content of meter) is 68.1%; Inactive phosphate (in P 2 o 5 The mass percent composition of total) is 6.5%; the mass percent composition of water-insoluble matter is 0.03%);

[0103] The sodium dodecylsulfonate of 0.001 parts by weight;

[0104] 58.999 parts by weight of water (conventional water).

[0105] The composition and weight percent of the second concentrated solution in the present embodiment are as follows:

[0106] 40 parts by weight of the middle cerium polishing powder (CeO 2 The mass per...

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Abstract

The invention provides a glass polishing liquid, a preparation method thereof and a polishing treatment method using the same. The glass polishing solution includes a first concentrated solution and a second concentrated solution, the first concentrated solution includes: 40-60 parts by weight of polishing powder containing cerium oxide; 1-5 parts by weight of the first dispersant; 0.001-0.005 parts by weight surfactant; and 34.995-58.999 parts by weight of water, the second concentrated solution includes: 40-60 parts by weight of cerium oxide polishing powder; 0.2-0.5 parts by weight of the second dispersant; 0.2-0.5 parts by weight of the third A dispersant; and 39 to 59.6 parts by weight of water, wherein the density of the first dispersant is not less than 1.5 g / cm 3 , the density of the second dispersant and the third dispersant is less than 1.5g / cm 3 . When the glass polishing liquid is used, the dispersant will not accumulate, the dispersion and suspension effects are good, the stability is good, the service life is long, the grinding rate is stable, the polishing effect is stable, and the yield is high; the surfactant will not accumulate, and the During the polishing process, a large amount of foam will not be generated, no additional defoaming agent is required, the grinding rate is good, and the polishing effect is good.

Description

technical field [0001] The invention relates to the field of chemical technology, in particular to a glass polishing liquid, a preparation method thereof, and a polishing treatment method using the glass polishing liquid. Background technique [0002] At present, with the rapid development of 5G communication and wireless charging technology, as well as the continuous evolution of the aesthetic design of mobile phones, glass will gradually replace metal and become the mainstream material for high-end smartphone cover plates. In order to achieve colorful optical effects and good touch, glass polishing is one of the essential processing procedures. In the related art, there are 3 technical schemes for the preparation of glass polishing liquid: the first one is CeO 2 The polishing powder is directly diluted with water to the required concentration; the second is to prepare the polishing liquid with the polishing powder, dispersant, suspending agent, surfactant, polishing aid, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09G1/02B24B1/00B24B57/02
CPCB24B1/00B24B57/02C09G1/02
Inventor 王洺浩马兰陈梁杨经杰曹雯
Owner BYD CO LTD