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Cerium-based mischmetal polishing material and preparation method thereof

A technology of mixing rare earth and polishing materials, which is applied in the field of rare earth polishing materials and its preparation, and can solve problems such as unfavorable use, poor suspension of polishing powder, and easy foaming of surfactants

Inactive Publication Date: 2013-01-30
上海华明高纳稀土新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, surfactants are prone to foaming during use, which is not conducive to use
At the same time, the modification of the suspension of the polishing powder by the surfactant is mainly reflected in the improvement of the suspension of small particles, which leads to the improvement of the apparent suspension, but there is a concentration gradient, which is not good for the suspension of the polishing powder.

Method used

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  • Cerium-based mischmetal polishing material and preparation method thereof
  • Cerium-based mischmetal polishing material and preparation method thereof

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preparation example Construction

[0028] The preparation method of the rare earth polishing material of the present invention comprises the following steps: preparing the cerium-based rare earth polishing powder, clay and polycarboxylic acid compound by dry ball milling in proportion.

[0029] In the present invention, the dry ball milling is carried out by using a ball mill; the milling time of the dry ball milling is 0.5-2h.

[0030] The purpose of the dry ball milling is to fully mix the components such as the cerium-based rare earth polishing powder, clay and polycarboxylate compound.

Embodiment 1

[0032] The cerium-based rare earth polishing powder, clay and polycarboxylate compound are dry-milled using TOSHIBA E658157 ball mill according to the proportion. Table 1 shows the components and contents of the cerium-based mixed rare earth polishing material of the present invention.

[0033]

Embodiment 2

[0035] The polishing performance evaluation conditions and evaluation results of the cerium-based mixed rare earth polishing material of the present invention are as follows:

[0036] Each polish prepared according to Table 1 was evaluated for application performance.

[0037] The evaluation method is as follows:

[0038] Take 500 g of the rare earth polishing material, add deionized water to 5 L, and obtain a polishing liquid slurry with a concentration of 100 g / L. Use UNIPOL802 (Shenyang Kejing) precision grinding and polishing machine to polish K9 glass, automatic stirring and beating, filtration and recycling, the polishing machine shaft speed is 100 rpm, and the pressure is 660N / cm 2 , The polishing leather is KSP66B-1.25, the polishing time is 6.5 hours, the particle size of the slurry is tested at regular intervals and the weight of the washed and dried glass is recorded. The difference is calculated according to the mass of the weighing polishing element before and a...

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Abstract

The invention aims to disclose a cerium-based mischmetal polishing material and a preparation method thereof. The material comprises the following components in percentage by weight: 83 to 99 percent of cerium-based mischmetal polishing powder, 1 to 15 percent of clay and 0.1 to 0.5 percent of polycarboxylic acid compound. Compared with the prior art, the material has the advantages that the aggregative trend of the polishing powder is restrained, suspending and dispersing properties of the polishing powder during use are effectively improved, specific gravity of the polishing powder is reduced, and the polishing powder is high in suspending property and universality, easy to clean after polishing, high in polishing efficiency and the like, so that the aim of the invention is fulfilled.

Description

technical field [0001] The invention relates to a rare earth polishing material and a preparation method thereof, in particular to a cerium-based mixed rare earth polishing material suitable for surface polishing of precision devices in the electronic information industry such as flat display and optical glass, and a preparation method thereof. Background technique [0002] At present, various glass materials are widely used, and these materials need to undergo necessary surface polishing before being applied. In the early days, materials such as zirconia, iron oxide or silicon dioxide were mainly used to polish various glass surfaces. In recent years, considering the polishing efficiency and precision, polishing materials with rare earth oxides (especially cerium oxide) as the main component have been used. It is considered more suitable for surface polishing of glass materials. [0003] With the rapid development of electronic information technology, the demand for glass ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09G1/02
Inventor 郝祥赵月昌李雪云李冉贾长征赵秀娟
Owner 上海华明高纳稀土新材料有限公司
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