A kind of preparation method of nanometer neodymium oxide coated zirconia powder

A technology of zirconia powder and neodymium oxide, which is applied in the field of preparation of nano-neodymium oxide-coated zirconia powder, can solve the problems of optical glass scratches and Araby phenomenon, and achieve scratches, uniform particle size and controllable, The effect of stable quality

Active Publication Date: 2021-09-21
HUNAN HAOZHI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a zirconia powder, which can not only solve the problem of optical glass scratches, ensure that the glass is not corroded, but also solve the Araby phenomenon that usually occurs in the polishing process of domestic products

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  • A kind of preparation method of nanometer neodymium oxide coated zirconia powder
  • A kind of preparation method of nanometer neodymium oxide coated zirconia powder

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Embodiment 1

[0034] The preparation method of nano neodymium oxide coated zirconia powder of the present embodiment, its preparation steps are as follows:

[0035] (1) Preparation of composite suspension: first heat deionized water to 75°C, then add sodium polyacrylate with a molecular weight of 10,000, then add BYK-420, and finally add Tween 80, stir, dissolve, clarify, and then cool to make each group In the solution, the mass ratio is 0.1% sodium polyacrylate (molecular weight: 10000), 0.2% BYK-420, 0.3% Tween 80, to obtain a composite suspension agent, and set aside;

[0036] (2) Preparation of neodymium chloride and praseodymium chloride solution: Weigh 200kg of deionized water and add it to an oil bath reactor, then add neodymium chloride and praseodymium chloride with a molar ratio of 99:1 into the deionized water to prepare Neodymium chloride and praseodymium chloride molar concentration is the neodymium chloride and praseodymium chloride solution of 0.3mol / L, standby;

[0037] (3...

Embodiment 2

[0044] The preparation method of nano neodymium oxide coated zirconia powder of the present embodiment, its preparation steps are as follows:

[0045] (1) Preparation of composite suspending agent: first heat deionized water to 80°C, then add sodium polyacrylate with a molecular weight of 10,000, then add BYK-420, and finally add Tween 80, stir, dissolve, clarify, and then cool to make each group The mass ratio in the solution is 0.3% sodium polyacrylate (molecular weight: 10,000), 0.1% BYK-420, 0.1% Tween 80, to obtain a composite suspension agent, and set aside;

[0046](2) Preparation of neodymium chloride and praseodymium chloride solution: Weigh 250kg of deionized water and add it to an oil bath reactor, then add neodymium chloride and praseodymium chloride with a molar ratio of 99:1 into the deionized water to prepare Become neodymium chloride and praseodymium chloride molar concentration and be the neodymium chloride and praseodymium chloride solution of 0.4mol / L, stand...

Embodiment 3

[0054] The preparation method of nano neodymium oxide coated zirconia powder of the present embodiment, its preparation steps are as follows:

[0055] (1) Preparation of composite suspending agent: first heat deionized water to 85°C, then add sodium polyacrylate with a molecular weight of 10,000, then add BYK-420, and finally add Tween 80, stir, dissolve, clarify, and then cool to make each group In the solution, the mass ratio is 0.2% sodium polyacrylate (molecular weight: 10000), 0.3% BYK-420, 0.2% Tween 80, to obtain a composite suspending agent for future use;

[0056] (2) Preparation of neodymium chloride and praseodymium chloride solution: Weigh 300kg of deionized water and add it to the oil bath reactor, then add neodymium chloride and praseodymium chloride with a molar ratio of 99:1 into the deionized water to prepare Become neodymium chloride and praseodymium chloride molar concentration and be the neodymium chloride and praseodymium chloride solution of 1.0mol / L, sta...

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Abstract

The invention discloses a method for preparing nano-neodymium oxide-coated zirconia powder, which relates to the technical field of preparation of materials used in optical glass processing and polishing. The preparation steps are as follows: (1) Composite suspending agent preparation; (2) Neodymium chloride and Preparation of praseodymium solution; (3) Preparation of precipitant; (4) Preparation of mixture; (5) Precipitation reaction; (6) Filtration; (7) Spray drying; (8) Calcination. The nano-neodymium oxide-coated zirconia powder obtained according to the preparation method of the present invention can not only solve the problem of optical glass scratches, ensure that the glass is not corroded, but also solve the Arabi phenomenon that usually occurs in the polishing process of domestic products, etc. Features, suitable for precision optical glass lens processing, especially for precision processing of large-diameter optical glass lenses and special soft material optical glass.

Description

technical field [0001] The invention relates to the technical field of preparation of materials used in optical glass processing and polishing, in particular to a preparation method of nano-neodymium oxide-coated zirconia powder. Background technique [0002] With the advancement of science and technology, the market demand for high-precision, large-diameter optical glass lenses is increasing, and the requirements for precision optical glass lens processing are getting higher and higher, and the market demand for various polishing products is also increasing day by day. . Among the polishing materials, zirconia has moderate hardness, wear resistance, corrosion resistance and good chemical stability. The polishing liquid made of zirconia powder can be used for processing optical glass, especially for the precision processing effect of optical glass made of special soft materials. very good. At present, zirconia polishing products used for precision processing of optical ins...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/48C09G1/02
CPCC09G1/02
Inventor 彭付贵
Owner HUNAN HAOZHI TECH
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