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Cerium-zirconium doped polishing solution as well as preparation method and application thereof

A polishing liquid, cerium-zirconium technology, applied in the direction of polishing composition containing abrasives, etc., can solve the problems of incompatibility between surface quality and removal amount, high hardness of cerium oxide, and inability to use universally, so as to speed up ball milling efficiency and grain size Small, well-established effect

Active Publication Date: 2021-04-30
DEMETER SUZHOU ELECTRONICS ENVIRONMENTAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the traditional polishing liquid used in the market is generally based on zirconia, which has the problems of scratches, frog skin, and low service life, and cannot be used universally; while cerium oxide polishing powder can meet the requirements for the low-end market with low requirements, but Manufacturers with high surface roughness requirements are still not good, the main reason is that cerium oxide itself is hard and easy to cause scratches; there are also some cerium-zirconium doped polishing fluids on the market, but the surface quality and removal amount still cannot be taken into account

Method used

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  • Cerium-zirconium doped polishing solution as well as preparation method and application thereof
  • Cerium-zirconium doped polishing solution as well as preparation method and application thereof
  • Cerium-zirconium doped polishing solution as well as preparation method and application thereof

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Embodiment 1

[0045]This embodiment provides a method for preparing a cerium-zirconium-doped polishing solution, using cerium carbonate and basic zirconium carbonate as precursors. The preparation method includes the following steps:

[0046] (1) Mix cerium carbonate, basic zirconium carbonate, and water in a ball mill, ball mill, and add sodium polyacrylate during the ball milling process, monitor the median particle size of the slurry particles, the median particle size D 50 = 1.5±0.2 μm to obtain ball mill slurry; wherein the ball mill adopts a high-energy ball mill, and the parameters of the high-energy ball mill are set as follows: the input energy form is grinding input energy, the input energy value is 70Hz, the diameter of the grinding beads is about 2mm, and the ball The ratio is 1:10, and the solid content of the control ball mill slurry is 45%. The mass ratio of cerium carbonate and basic zirconium carbonate is 2:8. In terms of mass percentage, the amount of ammonium salt of acryl...

Embodiment 2

[0052] This embodiment provides a method for preparing a cerium-zirconium-doped polishing solution, using basic cerium carbonate and basic zirconium carbonate as precursors, and the preparation method includes the following steps:

[0053] (1) Mix basic cerium carbonate, basic zirconium carbonate, and water in a ball mill, ball mill, and add sodium polyacrylate during the ball milling process, monitor the median particle size of the slurry particles, the median particle size D 50 = 1.5±0.2 μm to obtain ball mill slurry; wherein the ball mill adopts a high-energy ball mill, and the parameters of the high-energy ball mill are set as follows: the input energy form is grinding input energy, the input energy value is 80Hz, the diameter of the grinding ball is about 2mm, and the ball The ratio is 1: 10, and the solid content of the control ball mill slurry is 45%, the mass ratio of basic cerium carbonate and basic zirconium carbonate is 2: 8, in terms of mass percentage, the ammonium...

Embodiment 3

[0059] This embodiment provides a method for preparing a cerium-zirconium-doped polishing solution, using basic cerium carbonate and basic zirconium carbonate as precursors, and the preparation method includes the following steps:

[0060] (1) Mix basic cerium carbonate, basic zirconium carbonate, and water in a ball mill, ball mill, and add sodium polyacrylate during the ball milling process, monitor the median particle size of the slurry particles, the median particle size D 50 = 1.5±0.2 μm to obtain the ball mill slurry; wherein the ball mill adopts a high-energy ball mill, and the parameters of the high-energy ball mill are set as follows: the input energy form is grinding input energy, the input energy value is 50Hz, the diameter of the grinding ball is about 2mm, and the ball Ratio is 1: 10, and the solid content of controlling ball mill slurry is 50%, the mass ratio of basic cerium carbonate and basic zirconium carbonate is 2: 8, in terms of mass percentage, the ammonium...

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Abstract

The present invention discloses a cerium-zirconium doped polishing solution as well as preparation method and application thereof. According to the preparation method, rare earth carbonate and basic zirconium carbonate are used as precursors, grain boundary energy in the raw materials is reduced through energy input while the granularity of the raw materials is greatly reduced through advanced high-energy ball milling. The spray drying ensures the moisture removal and the dispersion uniformity among powder particles; and then in combination with a specific secondary calcination mode, excessive growth of original crystals in the calcination process is prevented, so that crystal grains grow more completely, crystal lattices are more perfect, edges and corners are clearer in the calcination process, and the purity of the product is improved. Materials with small grain sizes and uniform grain size distribution can be obtained more easily, so that the polishing solution prepared by the method has high cutting output and high surface quality when being applied to polishing blue glass; besides, further ball milling and formula preparation of the polishing solution are completed simultaneously in the ball milling process, so that the ball milling efficiency is improved, the production period is shortened, and the environment-friendly effect is better.

Description

technical field [0001] The invention belongs to the technical field of optical glass, and in particular relates to the polishing of blue glass, in particular to a cerium-zirconium doped polishing solution and its preparation method and application. Background technique [0002] Before the blue glass was used, most of the filter substrates installed in the camera were made of quartz glass, and a cut-off filter film was coated on the surface of the quartz glass to allow a short wavelength to pass through and reflect part of the red light. In order to block all the red light, several filters are needed to reflect at different angles. The blue glass coated with a cut-off filter film is the same as the quartz substrate, but the blue glass has an additional function of absorbing red light, so that the light in the lens barrel will not interfere with other light due to diffuse reflection, so that The light wave frequency of the wavelength entering the CCD camera is more single, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09G1/02
CPCC09G1/02
Inventor 周利虎李志杰付莹
Owner DEMETER SUZHOU ELECTRONICS ENVIRONMENTAL MATERIALS CO LTD
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