Polishing powder, polishing liquid for glass and preparation method thereof, glass and electronic product

Abstract

The invention discloses polishing powder, a polishing liquid for glass, and a preparation method thereof, glass and electronic products, relates to the technical field of glass polishing. The polishing powder is prepared from 50 to 60% of cerium oxide, 20 to 30% of lanthanum oxide and 10 to 20% of fluorine; D50 of the polishing powder is 1.0 to 1.6 mu m, D90 of the polishing powder is 2.4 to 2.6 mu m, the Moh's hardness is 7 to 8. The polishing liquid is prepared from 50 to 60% of the polishing powder, 0.5 to 1% of a suspension agent, 1 to 10% of a dispersing agent, 1 to 5% of a flatting agent, 1 to 5% of a grinding aid and the balance of water. By controlling the content, particle size distribution and hardness of the polishing powder, high cutting rate can be guaranteed and scratch can be reduced. In addition, through adding the suspension agent, the dispersing agent, the flatting agent and the grinding aid, the suspension, dispersion, leveling and uniformity properties of the polishing powder and the grinding efficiency are improved are improved, the polishing liquid has the advantages of excellent suspension and dispersion properties, high polishing rate and good surface quality.

Description

technical field [0001] The invention relates to the technical field of glass polishing, in particular to a polishing powder for glass, a polishing liquid and a preparation method thereof, glass and electronic products. Background technique [0002] The glass cover plates of electronic products such as mobile phones, tablet computers and liquid crystal displays need to be processed by chemical mechanical polishing to achieve surface flattening and improve surface finish. With the increasing popularity of electronic products, the market demand for high-precision and high-quality glass wafers is increasing day by day, and the requirements for flattening and smoothness of the glass surface are also gradually increasing, which puts forward higher technical requirements for glass surface polishing. [0003] As an important polishing material, polishing powder directly determines the polishing quality of the glass surface. Polishing powder polishes the glass through its mechanical ...

AI Technical Summary

Problems solved by technology

At present, the application performance of polishing powder on the market mainly focuses on how to increase the polishing rate. The common practice is to increase the particle size of the polishing powder and increase the polishing rate by increasing the mechanical action during the polishing process. However, it is easy to cause Application defects such as scratches on the glass surface and easy sedimentation of the polishing powder after being made into a polishing liquid

At the same time, as the hardness of the glass material becomes harder and harder, the processing efficiency of the general polishing liquid is low, which is easy to cause scratches. The liquid mainly depends on imports, and the cost is relatively high

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