Spinel type composite ultrafine blue ceramic pigment and preparation method thereof

A spinel-type, ceramic pigment technology, applied in the field of ceramic pigments, can solve the problems of unfavorable industrial production, complicated operation steps, difficulty in quality assurance, etc., and achieve the effects of bright color, simple and controllable process, and good dispersibility.

Inactive Publication Date: 2015-12-23
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But because its own appearance is white, it is easy to cause white pollution, causing a certain degree of pollution to the atmosphere, and also damages the human retina to a certain extent.
[0005] The patent application whose application number is 201210053903.7 discloses a preparation method of an inorganic blue pigment, although the pigment has the advantages of good thermal stability and light stability, and compared with traditional pigments, the inorganic blue pigment shows more For excellent coloring properties, such as higher tinting strength, brighter colors, more pure blue, etc., but the operation steps in the preparation process are cumbersome, it is difficult to guarantee the quality in large-scale production, and the cost is high; and the synthesis temperature is high, not conducive to industrial production

Method used

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  • Spinel type composite ultrafine blue ceramic pigment and preparation method thereof
  • Spinel type composite ultrafine blue ceramic pigment and preparation method thereof
  • Spinel type composite ultrafine blue ceramic pigment and preparation method thereof

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preparation example 3

[0032] First, 22.509g of glycine was dissolved in 120mL of distilled water, and then 14.552g of Co(NO 3 ) 2 ·6H 2 O and 37.513g of Al(NO 3 ) 3 ·6H 2 O, put it on a magnetic stirrer with a set temperature of 60°C to dissolve and stir until the solution is completely dissolved to obtain a clear liquid (about 20 minutes). Then heated to 110 ° C for 100 minutes, during which the liquid viscous expansion, followed by release of gas, rapid self-propagating combustion reaction, forming a loose powder. The obtained powder was calcined at 900°C for 4 hours to obtain the blue nano-pigment CoAl 2 o 4 .

Embodiment 1

[0034] A kind of preparation method of spinel type composite ultrafine blue ceramic pigment, it comprises the steps:

[0035] 1) 2gCoAl 2 o 4 Add it into 100mL water, stir evenly to get solution A;

[0036] 2) Mix 0.852g butyl titanate (0.2g titanium dioxide after conversion) with 2 volume times absolute ethanol to obtain solution B;

[0037] 3) Add solution B dropwise to solution A under stirring conditions, stir at room temperature for 5 hours at a speed of 90 rpm, and then leave to age for 24 hours to obtain an opaque gel;

[0038] 4) The opaque gel obtained in step 3) was first dried at 80°C for 4 hours, then dried at 90°C for 2 hours, then ground to obtain a loose precursor powder, and finally transferred to a muffle furnace for calcination at 400°C for 5 hours to obtain spinel type compound (CoAl 2 o 4 / TiO 2 ) Ultrafine blue ceramic pigment.

Embodiment 2

[0040] A kind of preparation method of spinel type composite ultrafine blue ceramic pigment, it comprises the steps:

[0041] 1) 2gCoAl 2 o 4 Add it into 100mL water, stir evenly to get solution A;

[0042] 2) Mix 3.409g butyl titanate (0.8g titanium dioxide after conversion) with 3 volume times absolute ethanol to obtain solution B;

[0043] 3) Add solution B dropwise to solution A under stirring conditions, stir at room temperature at a speed of 90 rpm for 6 hours, and then stand and age for 48 hours to obtain an opaque gel;

[0044] 4) The opaque gel obtained in step 3) was first dried at 80°C for 4 hours, then dried at 90°C for 2 hours, then ground to obtain a loose precursor powder, and finally transferred to a muffle furnace for calcination at 400°C for 5 hours to obtain spinel type compound (CoAl 2 o 4 / TiO 2 ) Ultrafine blue ceramic pigment.

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Abstract

The invention belongs to the technical field of ceramic pigments, and specifically relates to a preparation method of a spinel type composite ultrafine blue ceramic pigment. The preparation method comprises the following steps: (1) dissolving CoAl2O4 into water to obtain a solution (A); (2) evenly mixing butyl titanate with anhydrous ethanol with a volume 2 to 3 times of that of butyl titanate to obtain a solution (B); (3) adding the solution (B) into the solution (A) under stirring, stirring the mixed solution at a room temperature for 5 hours or more, and allowing the mixed solution to stand still to carry out aging for 24 to 48 hours so as to obtain opaque gel; (4) drying and grinding the opaque gel obtained in the step (3) to obtain loosened precursor powder, transferring the precursor powder to a muffle furnace, and burning the precursor powder in the muffle furnace for 4 to 6 hours at a temperature of 400 to 500 DEG C so as to obtain the blue ceramic pigment. The prepared spinel type composite ultrafine blue ceramic pigment combines the excellent performances of CoAl2O4 and TiO2 and has the advantages of good thermal stability, high chemical stability, bright color and luster, and unchanged color at a high temperature.

Description

Technical field [0001] The present invention is a ceramic pigment technology field, which involves a spine -stones composite ultra -fine blue ceramic pigment and its preparation methods. Background technique [0002] The significance of continuously rising energy costs to promote the development of new technologies is to improve energy efficiency worldwide.The existing technology is to use near -infrared reflection pigments. When the object is exposed to the sun, the pigment is passed to the object, and the reflection is from the invisible heat from the object, thereby reducing the accumulation of heat. In the endThe system load is reduced and energy saving.If you use this pigment to decorate the building roof, the roof will reflect more solar radiation to reduce the indoor temperature, which can greatly save funds in summer. [0003] The use of two material composite is one of the ways to prepare color inorganic pigments. Composite metal oxide inorganic pigments such as chromium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/85
Inventor 仝玉萍张新中邢振贤符静李克亮王慧贤马军涛陈渊召刘丽顾亚坤张海洋陈希霍洪媛
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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