Whitening agent for ceramic blank body and preparation method thereof

A technology of ceramic body and whitening agent, applied in the field of materials, can solve the problems of not being suitable for daily use ceramics, threats to users' health, and high price, so as to improve whitening effect and antibacterial effect, improve mechanical properties, and improve mechanical properties. performance effect

Inactive Publication Date: 2015-10-07
JIANGSU MIRAFUL NANO MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since the 90s of last century, zirconium silicate has been used as a whitening agent and strengthening agent for building ceramics. However, my country is a country lacking in zirconium resources. More than 95% of zircon sand is all dependent on imports. More than 700,000 tons of zirconium silicate is expensive
Moreover, the use of zirconium silicate in the ceramic body can significantly increase the radioactivity of the ceramics, which increases environmental pollution, and is not suitable for daily-use ceramics.
At present, the products replacing zirconium silicate are mainly used in ceramic glaz

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0009] Example 1

[0010] A whitening agent for a ceramic body, comprising the following raw materials by weight: 35 parts of titanium dioxide, 60 parts of aluminum hydroxide, 5 parts of kaolin, 12.5 parts of active silicon powder, 2 parts of zinc nitrate, 3 parts of barium carbonate, talcum powder 2 parts, 4 parts of aluminum oxide, 7 parts of disodium edetate, 9 parts of sodium hexametaphosphate, 2 parts of nickel oxide, 4 parts of lithium borohydride, and 1 part of magnesite.

[0011] The specific preparation method includes the following steps:

[0012] S100: 5 parts of kaolin, 3 parts of barium carbonate, 1 part of magnesite, 60 parts of aluminum hydroxide, 12.5 parts of active silicon powder, 2 parts of talc, and 4 parts of aluminum oxide, add 90 parts of water and grind to a particle size The diameter is 0.5 microns to 1.5 microns to obtain slurry;

[0013] S200: Mix the slurry evenly in the stirring vessel, and after drying, enter the kiln to sinter low-temperature r...

Example Embodiment

[0017] Example 2

[0018] A whitening agent for a ceramic body, comprising the following raw materials by weight: 38 parts of titanium dioxide, 65 parts of aluminum hydroxide, 7 parts of kaolin, 14 parts of active silicon powder, 3 parts of zinc nitrate, 3.5 parts of barium carbonate, talcum powder 3 parts, 6 parts of aluminum oxide, 7.5 parts of disodium EDTA, 9.5 parts of sodium hexametaphosphate, 5 parts of nickel oxide, 5 parts of lithium borohydride, and 4 parts of magnesite.

[0019] The specific preparation method includes the following steps:

[0020] S100: 7 parts of kaolin, 3.5 parts of barium carbonate, 4 parts of magnesite, 65 parts of aluminum hydroxide, 14 parts of active silica powder, 3 parts of talc, and 6 parts of aluminum oxide, add 100 parts of water and grind to a particle size The diameter is 0.5 micron-1.5 micron to obtain slurry;

[0021] S200: Mix the slurry evenly in the stirring vessel, and after drying, enter the kiln to sinter low-temperature raw...

Example Embodiment

[0025] Example 3

[0026] A whitening agent for a ceramic body, comprising the following raw materials by weight: 40 parts of titanium dioxide, 70 parts of aluminum hydroxide, 8 parts of kaolin, 15.5 parts of active silicon micropowder, 4 parts of zinc nitrate, 4 parts of barium carbonate, talcum powder 4 parts, 9 parts of aluminum oxide, 8 parts of disodium edetate, 10 parts of sodium hexametaphosphate, 7 parts of nickel oxide, 7 parts of lithium borohydride, and 6 parts of magnesite.

[0027] The specific preparation method includes the following steps:

[0028] S100: 8 parts of kaolin, 4 parts of barium carbonate, 6 parts of magnesite, 70 parts of aluminum hydroxide, 15.5 parts of active silicon powder, 4 parts of talc, and 9 parts of aluminum oxide, add 110 parts of water and grind to a particle size The diameter is 0.5 micron-1.5 micron to obtain slurry;

[0029] S200: Mix the slurry evenly in the stirring vessel, and after drying, enter the kiln to sinter low-temperatu...

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PUM

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Abstract

The invention discloses a whitening agent for a ceramic blank body. The whitening a gent comprises the following materials in parts by weight: 35-40 parts of titanium dioxide, 60-70 parts of aluminium hydroxide, 5-8 parts of kaolin, 12.5-15.5 parts of active micro silicon powder, 2-4 parts of zinc nitrate, 3-4 parts of barium carbonate, 2-4 parts of talc powder, 4-9 parts of aluminium oxide, 7-8 parts of disodium edetate dihydrate, 9-10 parts of sodium hexametaphosphate, 2-7 parts of nickel oxide, 4-7 parts of lithium borohydride and 1-6 parts of magnesium-calcium stone. The whitening agent disclosed by the invention has the advantage that the whitening effect and the antibacterial effect of ceramics are improved.

Description

technical field [0001] The invention relates to a material, more specifically to a whitening agent for a ceramic green body and a preparation method thereof. Background technique [0002] Since the 90s of last century, zirconium silicate has been used as a whitening agent and strengthening agent for building ceramics. However, my country is a country lacking in zirconium resources. More than 95% of zircon sand is all dependent on imports. Zirconium silicate is more than 700,000 tons, which is expensive. Moreover, the use of zirconium silicate in ceramic bodies can significantly increase the radioactivity of ceramics and increase environmental pollution, so it is not suitable for daily-use ceramics. At present, the products replacing zirconium silicate are mainly used in ceramic glazes, and these substitute materials cannot be used in ceramic bodies. Patent No. CN103936427A, one of the applicant's early applications, discloses a whitening agent for ceramic blanks, but this w...

Claims

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Application Information

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IPC IPC(8): C04B35/63
Inventor 范盘华郝小勇朱俊飞
Owner JIANGSU MIRAFUL NANO MATERIAL CO LTD
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