Thermostable white nano far-infrared ceramic powder and preparation method thereof

A technology of far-infrared ceramic powder and high temperature resistance, applied in the field of infrared radiation materials, can solve the problems of black or dark color of far-infrared ceramic powder, low emissivity of far-infrared ceramic powder, etc. The effect of stability

Active Publication Date: 2011-04-13
JINGDEZHEN BOZHI CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The main purpose of the present invention is to overcome the defects of the prior art that the far-infrared ceramic powder has a low emissivity after high-

Method used

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preparation example Construction

[0023] The preparation method of the far-infrared ceramic powder of the present invention adopts the microemulsion method, and the preparation process of the microemulsion method is as follows: respectively prepare microemulsions composed of surfactants and co-surfactants, aqueous solutions with different reactants or ammonia water, and oil → Various microemulsions are mixed and stirred → microemulsion droplets collide with each other → centrifugal filtration, water washing → sediment → dehydration treatment → drying → calcination → jet milling → performance testing → standby.

[0024] Concrete preparation process steps are as follows:

[0025] The formulation amount of aluminum oxide, magnesium oxide, silicon oxide, zirconium oxide, zinc oxide, titanium oxide, rare earth oxide, precious metal oxide is weighed corresponding metal or non-metallic nitrate or halide salt of corresponding mass parts, the above each The salts were dissolved in deionized water respectively to obtain...

Embodiment 1

[0028] Nano-alumina 26%, nano-magnesia 8%, nano-silicon 21%, nano-zirconia 15%, nano-zinc oxide 20%, nano-titanium oxide 8%, nano-yttrium oxide 1.9%, nano-palladium oxide 0.1%, according to The formula quantity weighs the corresponding metal, nonmetal, rare earth and precious metal halide salts in corresponding parts by mass, dissolves the above salts in deionized water respectively, and obtains a reactant solution with a concentration of 1M, and weighs the corresponding parts by mass with a concentration of 2.5M Ammonia; the preparation mass fraction is 30% TritonX-100, mass fraction is 20% n-C6 h 13 OH, mass fraction is 30%C 6 h 12 , mass fraction is 10% reactant solution (1M) and mass fraction is 10% ammoniacal solution (2.5M); After mixing and stirring the various microemulsions prepared above for 30 minutes, put into centrifuge to filter, wash, use after washing The pH value of sediment is 7; Prepare dehydrating agent: Spand-60 (Span-60): Tween-60: Op-10=1: 1: 0.5, and ...

Embodiment 2

[0030] Nano-alumina 24%, nano-magnesia 6%, nano-silicon 20%, nano-zirconia 18%, nano-zinc oxide 22%, nano-titanium oxide 7%, nano-lanthanum oxide 2.8%, nano-palladium oxide 0.2%, according to The formula quantity weighs the corresponding metal, nonmetal, rare earth and precious metal halide salts in corresponding mass parts, dissolves the above various salts in deionized water respectively, and obtains a reactant solution with a concentration of 2M, and weighs the corresponding mass parts with a concentration of 5M. Ammonia; the preparation mass fraction is 42% TritonX-100, mass fraction is 28% n-C 6 h 13 OH, mass fraction is 15%C 6 h 12 , mass fraction is 10% reactant solution (2M) and mass fraction is 5% ammoniacal solution (5M); The various microemulsions of above preparation are mixed and stirred for 60 minutes, put into centrifuge and filter, wash with water, make precipitate after washing The pH value of pH value is 7; Prepare dehydrating agent: Spand-60 (Span-60): Tw...

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Abstract

The invention discloses a thermostable white nano far-infrared ceramic powder and a preparation method thereof. The thermostable white nano far-infrared ceramic powder is prepared from the following components in percentage by weight: 20-30% of nano alumina, 3-8% of nano magnesia, 15-25% of nano monox, 10-20% of nano zirconia, 15-25% of nano zinc oxide, 7-10% of nano titanium oxide, 1-3% of nano rare earth oxide and 0.1-0.3% of nano precious metal oxide. In the invention, the nano rare earth oxide is one of yttrium oxide or lanthana or cerium oxide, and the nano precious metal oxide is one of platinum oxide or palladium oxide. The nano far-infrared ceramic powder can be subjected to subsequent processing at the high temperature of 1300-1450 DEG C, without reduction of radiance and radiation intensity, wherein the radiance can reach 0.90-0.94, and the nano far-infrared ceramic powder is white and can be widely applied to far-infrared household porcelain, wall and floor tiles, heating ceramic plates and high-temperature coating.

Description

technical field [0001] The invention belongs to the technical field of infrared radiation materials, and in particular relates to a preparation method of high-temperature-resistant white nanometer far-infrared ceramic powder. Background technique [0002] Far-infrared ceramic powder is a kind of ceramic powder material with high radiation rate and radiation intensity in the far-infrared band, which is prepared by using ceramic powder processing technology with oxides, carbides, nitrides, etc. as raw materials. Currently commonly used far-infrared radiation ceramics mainly include silicon carbide series, iron-manganese-nickel-cobalt-copper series, negative ion powder and other black or dark far-infrared radiation ceramics and zirconia series, aluminum-magnesium-silicon-zinc-titanium- Rare earth and other white far-infrared radiation ceramics. Adding a certain amount of negative ion powder to far-infrared radiation ceramics, although the emissivity can reach more than 0.9 at ...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/453C04B35/626
Inventor 刘硕琦刘维良
Owner JINGDEZHEN BOZHI CERAMICS
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