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Preparation process of active zironium white pigment

A kind of pigment and active technology, which is applied in the field of preparation of active zirconium white pigments, can solve the problems of not being able to be used as paint pigments, easy to change color of exterior wall coatings, not being compatible with resins and mixing, etc., to achieve excellent weather resistance and anti-aging performance, unique Absorption and shielding effect, effect of small thermal expansion coefficient

Inactive Publication Date: 2006-02-08
林香生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Titanium dioxide is an important pigment with excellent dispersibility, good hiding power, outstanding high whiteness and easy wettability. It is widely used in industrial coatings, but it is easy to change color when used in exterior wall coatings, poor acid rain resistance, chalking Peeling, while serious pollution in the production process, high cost
Generally, unmodified zirconia cannot be suspended because the particles are too large, it cannot be mixed with resin, and it is easy to precipitate, so it cannot be used as a paint pigment. "Active zirconium white pigment" is still a blank

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] a. stirring and grinding

[0024] Choose zirconium silicate (ZrO in zirconium silicate 2 ·SiO2 2 ≥99%, of which ZrO 2 ≥65.5%, SiO 2 ≤33.5%) as base material, add grinding aid sodium carbonate and tap water, press 100: 0.3: 130 weight ratio, make ZJM-120 type agitating ball mill with Zhengzhou City Dongfang Machinery Manufacturing Factory and grind under stirring wheel speed 80 rpm 9 hours to an average particle size of 1.2-1.3 μm, the diameter of zirconium balls or high alumina balls is 6 mm, and the total weight ratio of grinding balls to materials plus water is equal to 1:1.4;

[0025] b. Rinsing, magnetic filtration to remove iron and press filter dehydration

[0026] Rinse the slurry obtained by stirring and grinding with well water twice the weight of the slurry, pass through a 400-mesh cylindrical sieve to remove impurities, and pass the slurry evenly through the HI-100 magnetic filter to remove iron; use XMT60 / 800-UB type filter press filter dehydration to ...

Embodiment 2

[0036] Similar to the preparation method in Example 1, the difference is that zirconium oxide is used instead of zirconium silicate as the base material, and in step a, it is ground with a ZJM-120 type agitating ball mill from Zhengzhou Dongfang Machinery Manufacturing Plant at a stirring wheel speed of 100 rpm Between 12 hours to an average particle size of 0.3-0.5 μm; c. the weight ratio of the cake to sodium hypophosphite and magnesium oxide powder in the step is 100: 0.2: 0.3; after the calcined material is cooled in the e step, use a hammer mill Thin, mix with the plating solution of 6.0% powder weight, the weight ratio of strontium chloride, sodium hypophosphite, dehydrated alcohol and simethicone oil in the plating solution is 15: 10: 25: 100, and the airflow pressure is 1.0Mpa (MPa ), the coating reaction temperature is 95°C, and the speed of the zirconium sheet classification wheel is 4800 rpm.

[0037] The prepared active zirconium white pigment has the excellent pro...

Embodiment 3

[0039] Similar to the preparation method in Example 1, the difference is that the mixture of 30 parts by weight of zirconium oxide and 70 parts by weight of zirconium silicate is used as the base material, and the ZJM-120 type agitating ball mill of Zhengzhou Dongfang Machinery Manufacturing Plant is used to stir in step a. Grinding for 10 hours at a wheel speed of 80 rpm to an average particle size of 0.8-1.0 μm; c. the weight ratio of the cake to sodium hypophosphite and magnesium oxide powder in the step is 100: 0.4: 0.6; d. the mixture in the step Heating and calcining at 200-560°C for 4 hours, then gradually heating up to 1200°C for high-temperature calcining for 5 hours; e. the amount of plating solution in the step is 4.8% of the powder weight, strontium chloride, sodium hypophosphite, absolute ethanol and di The weight ratio of methyl silicone oil is 25:10:20:100, the gas flow pressure is 0.9Mpa (MPa), the coating reaction temperature is 85°C, the pH value is 6.5, and t...

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PUM

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Abstract

The invention relates to an active zirconium white pigment preparing method, including such steps as a, selecting one or two of the zirconium oxide and zirconium silicate as basal material, adding in aid-grinding agent sodium carbonate and water, and grinding by a blending ball mill; b, fulling, eliminating irons by magnetic filtering and press-filtering to dehydrate; c, adding sodium hypophosphite and stabilizer magnesium oxide in material cake, and mixing uniformly into a mixture; d, high-temperature burning; e, chemical coating processing; f, after-processing. The active zirconium white pigment has suspending property, hydrophobic property, UV resistance, X-ray and high-low temperature resistance, wearability, acid resistance and other excellent properties, applied to act as coating, protective glasses, color TV set glass screens, wearable parts, etc.

Description

technical field [0001] The invention relates to a preparation method of active zirconium white pigment. Background technique [0002] Titanium dioxide is an important pigment with excellent dispersibility, good hiding power, outstanding high whiteness and easy wettability. It is widely used in industrial coatings, but it is easy to change color when used in exterior wall coatings, poor acid rain resistance, chalking Peeling, serious pollution and high cost in the production process. Generally, unmodified zirconia particles are too large to suspend, cannot be dissolved and mixed with resins, and are easy to precipitate, so they cannot be used as paint pigments. "Active zirconium white pigment" is still a blank. content of the invention [0003] The purpose of this invention is to provide a kind of preparation method of active zirconium white pigment (can be referred to as electroless plating method), this active zirconium white pigment has suspending property, hydrophobici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C3/04
Inventor 林香生
Owner 林香生
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