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Preparation method of nanometer ZrO2/BiOCl composite powder

A nano-composite powder and colloid technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of poor thermal stability of single bismuth oxychloride, uneven composition of composite powder, complicated preparation process, etc. To achieve the effect of good pearl effect, low cost and simple synthesis process

Inactive Publication Date: 2013-09-04
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the technical problems of complex preparation process for oxide-coated pearlescent pigment composite powder, uneven composite powder composition, high cost, and poor thermal stability of single bismuth oxychloride, and provides a ZrO 2 Preparation method of / BiOCl nanocomposite powder

Method used

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  • Preparation method of nanometer ZrO2/BiOCl composite powder
  • Preparation method of nanometer ZrO2/BiOCl composite powder

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specific Embodiment approach 1

[0015] Specific implementation mode one: ZrO in this implementation mode 2 The preparation method of / BiOCl nanocomposite powder is carried out according to the following steps:

[0016] 1. Dissolving bismuth nitrate in nitric acid, stirring evenly, adding water to dilute to obtain bismuth nitrate solution, the concentration of bismuth nitrate in the bismuth nitrate solution is 0.0001-0.02mol / L, and the concentration of nitric acid is 0.02-10mol / L;

[0017] 2. Prepare an ammonia solution with a concentration of 0.001-2mol / L;

[0018] 3. Add ammonia water and bismuth nitrate solution dropwise into a container containing water while stirring, and control the pH value of the system during the dropwise addition process, the pH value is 7-10, and bismuth hydroxide colloid is obtained;

[0019] 4. Dissolving zirconium oxychloride into water to obtain a zirconium oxychloride solution with a concentration of 0.0001 to 1 mol / L;

[0020] 5. Polyethylene glycol is dissolved in water to...

specific Embodiment approach 2

[0022] Embodiment 2: This embodiment differs from Embodiment 1 in that the concentration of bismuth nitrate in the bismuth nitrate solution in step 1 is 0.001-0.015 mol / L, and the concentration of nitric acid is 0.015-9 mol / L. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0023] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the concentration of bismuth nitrate in the bismuth nitrate solution in step 1 is 0.0018-0.012 mol / L, and the concentration of nitric acid is 0.5-8 mol / L. Others are different from the first or second specific embodiment.

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Abstract

The invention discloses a preparation method of nanometer ZrO2 / BiOCl composite powder, relating to a method for preparing the nanometer ZrO2 / BiOCl composite powder through a hydrothermal method. The invention aims to solve the technical problems of complex preparation process, uneven contents of composite powder, high cost and poor thermal stability of single bismuth oxychloride during the preparation of pearlescent pigment composite powder coated by an oxide. The method comprises the following steps of: (1) dissolving bismuth nitrate into nitric acid, evenly stirring and then adding water for dilution to acquire a bismuth nitrate solution; (2) preparing an aqueous ammonia solution; (3) preparing bismuth hydroxide colloid; (4) preparing a zirconium oxychloride solution; (5) dissolving polyethylene glycol into water to acquire a polyethylene glycol solution; (6) mixing the bismuth hydroxide colloid, the zirconium oxychloride solution and the polyethylene glycol solution and pouring the mixture into a hydrothermal reactor and preserving the heat, and naturally cooling to acquire the nanometer ZrO2 / BiOCl composite powder. The preparation method of the nanometer ZrO2 / BiOCl composite powder is simple in synthetic process, low in cost, favorable in pearl effect of the composite powder and good in stability and is applied to the fields of primers for a car, cosmetics and paintings.

Description

technical field [0001] The invention relates to a method for preparing nano ZrO by hydrothermal method 2 / BiOCl composite powder method. Background technique [0002] In recent years, uniform dispersion has developed rapidly and has been widely used in functional ceramics, sensors, coatings, medicine and cosmetics. At present, composite pearlescent pigments are mainly obtained by mixing two or more pigments. Due to the uneven mixing of powders, the color difference of the obtained composite powder is relatively large, which affects the pearlescent effect; in addition, the traditional preparation of oxide-coated pearlescent The preparation process of the pigment composite powder is complex, the composition of the composite powder is uneven, the cost is high, and the thermal stability of bismuth oxychloride is poor. Contents of the invention [0003] The present invention aims to solve the technical problems of complex preparation process for oxide-coated pearlescent pigme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G25/02C01G29/00B82Y30/00
Inventor 刘刚迟庆国张昌海杨志涛
Owner HARBIN UNIV OF SCI & TECH
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