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Modified tourmaline powder for ceramic glaze, negative ion ceramic glaze and preparation method

A technology of tourmaline powder and ceramic glaze, which is applied in the field of ceramic materials, can solve the problems of affecting the color appearance of ceramic products, the decline of negative ion function, and the easy occurrence of agglomeration, etc., and achieve good negative ion release function, increase negative ion release, and good negative ion function. Effect

Active Publication Date: 2017-12-08
FUJIAN WILL CERAMIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The application of tourmaline powder in the ceramic field has been quite limited, mainly for the following reasons: First, the currently commercially available negative ion materials for ceramic glazes are obtained by crushing tourmaline powder and ball milling through physical methods, and the color is mostly gray or dark gray Even if there is an anion material wrapped by titanium dioxide, it is still easy to develop color when it is calcined after glazing, which will affect the color appearance of ceramic products; second, the anion release performance of unmodified tourmaline powder needs to be determined. Further improvement to meet its use in the field of ceramic glazes; third, the temperature resistance of tourmaline powder currently used is poor, and its negative ion function will decline sharply after being calcined at a temperature higher than 1000 ° C; fourth , unmodified tourmaline powder is prone to agglomeration when making ceramic glaze slurry, which leads to slurry failure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The preparation method of modified tourmaline powder for ceramic glaze comprises the following steps:

[0019] Step 1, crushing of tourmaline powder: crush the tourmaline, add water ball mill to pass through a 200-300 mesh sieve, the quality of the added water is 9% of the tourmaline powder, and then dry, and the particle size is 0.1-0.3 after airflow crushing micron tourmaline powder;

[0020] Step 2, primary modification of tourmaline micropowder: add 12 parts of tourmaline micropowder and 130 parts of stearic acid obtained in step 1 into 250 parts of ethylene glycol, and ultrasonically vibrate for 12 minutes to obtain an ultrasonic mixture, and then Raise the temperature of the ultrasonic mixture to 75°C, stir for 70 minutes, and then distill off the solvent under reduced pressure to obtain primary modified tourmaline powder;

[0021] Step 3, secondary modification of tourmaline micropowder: add 0.4 parts of sodium stearate to 280 parts of deionized water in parts b...

Embodiment 2

[0026] The preparation method of modified tourmaline powder for ceramic glaze comprises the following steps:

[0027] Step 1, crushing of tourmaline powder: crush the tourmaline, add water ball mill to pass through a 200-300 mesh sieve, the quality of the added water is 8% of the tourmaline powder, and then dry, and the particle size is 0.1-0.3 after airflow crushing micron tourmaline powder;

[0028] Step 2, primary modification of tourmaline micropowder: in parts by mass, add 10 parts of tourmaline micropowder obtained in step 1 and 100 parts of stearic acid to 200 parts of ethylene glycol, and ultrasonically vibrate for 10 minutes to obtain an ultrasonic mixture, which is then Raise the temperature of the ultrasonic mixture to 70°C, stir for 60 minutes, and then distill off the solvent under reduced pressure to obtain primary modified tourmaline powder;

[0029] Step 3, secondary modification of tourmaline micropowder: add 0.2 parts of sodium stearate to 200 parts of deion...

Embodiment 3

[0034] The preparation method of modified tourmaline powder for ceramic glaze comprises the following steps:

[0035] Step 1, crushing of tourmaline powder: crush the tourmaline, add water ball mill to pass through a 200-300 mesh sieve, the quality of the added water is 10% of the tourmaline powder, and then dry, and the particle size after airflow crushing is 0.1-0.3 micron tourmaline powder;

[0036]Step 2, primary modification of tourmaline micropowder: according to the number of parts by mass, add 15 parts of tourmaline micropowder obtained in step 1 and 150 parts of stearic acid to 300 parts of ethylene glycol, and ultrasonically vibrate for 15 minutes to obtain an ultrasonic mixture, and then Raise the temperature of the ultrasonic mixture to 80°C, stir for 80 minutes, and then distill off the solvent under reduced pressure to obtain primary modified tourmaline powder;

[0037] Step 3, secondary modification of tourmaline micropowder: in parts by mass, add 0.5 part of s...

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Abstract

The invention relates to modified tourmaline powder for ceramic glaze, anion ceramic glaze and a preparation method, belonging to the technical field of ceramics. The anion ceramic glaze comprises the following raw materials in parts by mass: 20-30 parts of nepheline syenite, 5-8 parts of kaolin, 6.8-9.5 parts of muscovite, 6.2-7.8 parts of modified tourmaline powder, 3-6 parts of zinc oxide, 8-12 parts of light calcium carbonate, 4.6-5.7 parts of aluminum oxide, 1-4 parts of magnesium oxide, 2.5-4.8 parts of potassium oxide and 0.1-0.3 part of rubidium oxide. According to the invention, through the modification of tourmaline powder, the anion release amount of the tourmaline powder is effectively increased, and the surface polarity of the modified tourmaline is relatively low; and due to the stable dispersing performance of the tourmaline powder, the agglomeration phenomenon is avoided in the preparation of glaze slurry, and the ceramic products get a good anion function.

Description

technical field [0001] The invention belongs to the technical field of ceramic materials, and in particular relates to a modified tourmaline powder for ceramic glazes, negative ion ceramic glazes and a preparation method. Background technique [0002] At present, the widely used negative ion material is mainly tourmaline powder, which can cause a high electrostatic potential difference between the negative ion crystals under certain external energy fluctuations, so that the air in the electric field is ionized, and the particles attached to the nearby Water and oxygen molecules are converted into negative oxygen ions, and the generated negative oxygen ions move in the air, which transfers negative charges to dust and water droplets, thereby purifying the air. Therefore, tourmaline powder is called negative ion material, and it is an excellent functional material. Environmental materials are widely used as coating materials for furniture, electrical appliances, etc., to achie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/86C03C8/00
CPCC03C8/00C04B41/5022C04B41/86
Inventor 危连进
Owner FUJIAN WILL CERAMIC CO LTD
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