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Preparation method of antimony-doped zinc oxide and tin oxide-coated silicon oxide conductive powder

A technology for coating silicon oxide and zinc oxide, which is applied in oxide conductors, cable/conductor manufacturing, circuits, etc., can solve the problems of high price, high energy consumption in the preparation process, and high heat treatment temperature, and achieves the improvement of powder whiteness, application Broad, high whiteness effect

Active Publication Date: 2019-05-21
山东电盾科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, metal-based powders and carbon-based powders cannot be used in production processes that require high-temperature calcination, such as anti-static ceramics. After high-temperature calcination, the product cannot be endowed with anti-static functionality; although antimony-doped tin oxide powder (ATO) can be used High-temperature calcination production process, but the price is expensive and the powder color is darker, and the use is limited; "Preparation and electrical properties of antimony-doped tin oxide-coated silicon oxide conductive powder" (Acta Silicate, April 2009 ) In the article, only antimony-doped tin oxide is used to coat silicon oxide, the color of the prepared powder is still relatively dark, and the heat treatment temperature is relatively high, and the energy consumption of the preparation process is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Put 100 grams of pure quartz powder into a beaker filled with distilled water adjusted to a pH of 2.0 to 3.0 with hydrochloric acid, keep the content of silicon oxide in distilled water at 0.5g / ml, and place the beaker in a constant temperature water bath at 80°C Stir in;

[0025] (2) ZnCl 2 , SnCl 4 Dissolve in hydrochloric acid at a mass ratio of 1:3 to make a solution with a concentration of 0.6mol / L, and add SbCl at the same time 3 , forming Zn 2+ and Sn 4+ Mixture of Sb with 3+ The mol ratio is the mixed solution of 1:0.03;

[0026] (3) Prepare the Zn-containing 2+ , Sn 4+ and Sb 3+ The hydrochloric acid mixed solution and an appropriate amount of sodium hydroxide solution are respectively dripped into the suspension of silicon oxide through the control of the peristaltic pump. The dripping rate of the mixed solution is 0.5ml / min. Adjust the dripping rate of the sodium hydroxide solution so that the The PH value is kept at 2.0-3.0;

[0027] (4) Select...

Embodiment 2

[0031] (1) Put 100 grams of pure quartz powder into a beaker filled with distilled water adjusted to a pH of 2.0 to 3.0 with hydrochloric acid, keep the content of silicon oxide in distilled water at 0.5g / ml, and place the beaker in a constant temperature water bath at 80°C Stir in;

[0032] (2) ZnCl 2 , SnCl 4 Dissolve in hydrochloric acid at a mass ratio of 1:3 to make a solution with a concentration of 0.8mol / L, and add SbCl at the same time 3 , forming Zn 2+ and Sn 4+ Mixture of Sb with 3+ The mol ratio is the mixed solution of 1:0.03;

[0033] (3) Prepare the Zn-containing 2+ , Sn 4+ and Sb 3+ hydrochloric acid solution and an appropriate amount of potassium hydroxide solution are respectively dripped into the suspension of silicon oxide under the control of a peristaltic pump, and the dripping rate of the mixed solution is 0.5ml / min. The pH value is kept at 2.0-3.0;

[0034] (4) Selecting the addition of the mixed solution is 30% of the mass of silicon oxide to...

Embodiment 3

[0038] (1) Put 100 grams of pure quartz powder into a beaker filled with distilled water adjusted to a pH of 2.0 to 3.0 with hydrochloric acid, keep the content of silicon oxide in distilled water at 0.5g / ml, and place the beaker in a constant temperature water bath at 80°C Stir in;

[0039] (2) ZnCl 2 , SnCl 4 Dissolve in hydrochloric acid at a mass ratio of 1:4 to make a solution with a concentration of 0.7mol / L, and add SbCl at the same time 3 , forming Zn 2+ and Sn 4+ Mixture of Sb with 3+ The mol ratio is a mixed solution of 1:0.04;

[0040] (3) Prepare the Zn-containing 2+ , Sn 4+ and Sb 3+ hydrochloric acid solution and an appropriate amount of sodium hydroxide solution are respectively dripped into the suspension of silicon oxide under the control of a peristaltic pump, and the dripping rate of the mixed solution is 0.5ml / min. The pH value is kept at 2.0-3.0;

[0041] (4) Selecting the added amount of the mixed solution is 50% of the mass of silicon oxide to ...

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Abstract

The invention, which belongs to the technical field of functional material preparation, in particular relates to a preparation method of conductive powder with antimony-doped zinc oxide and stannic oxide coating monox. Pure silica powder is put into a beaker containing distilled water with the pH valued adjusted by hydrochloric acid and stirring is carried out to obtain a monox suspension; mixed liquid with Zn<2+>, Sn<4+> and Sb<3+> and an alkaline solution are controlled by a peristaltic pump to be dripped into the monox suspension simultaneously, and after dripping completion of the mixed liquid, heating and stirring are carried out continuously; ageing, suction filtration, and washing are carried out successively, an obtained precursor is dried, and then the dried precursor is placed ina muffle furnace to carry out heat treatment, so that conductive powder is obtained. The conductive powder not only has the conductive property but also has chemical stability not possessed by materials like metal and has the good antistatic performance; and the coverage rate and whiteness are high. The conductive power serving as a functional filler applied to a preparation process like of a plastic, coating, ceramic material has a wide application range.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional materials, and in particular relates to a method for preparing antimony-doped zinc oxide and tin oxide-coated silicon oxide conductive powder. Background technique [0002] Commonly used conductive powders such as metal-based powders, carbon-based powders, and doped metal oxide powders are widely used as functional fillers in the preparation of plastics and coatings, which can impart antistatic properties to base materials. However, metal-based powders and carbon-based powders cannot be used in production processes that require high-temperature calcination, such as anti-static ceramics. After high-temperature calcination, the product cannot be endowed with anti-static functionality; although antimony-doped tin oxide powder (ATO) can be used High-temperature calcination production process, but the price is expensive and the powder color is darker, and the use is limited; "Preparat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B1/08
CPCH01B1/08H01B13/00
Inventor 乔栓虎潘绍云袁国梁
Owner 山东电盾科技股份有限公司
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