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Far infrared radiation nano material and preparation thereof

A technology of far-infrared radiation and nanomaterials, applied in the field of far-infrared radiation nanomaterials and their preparation, can solve the problems of narrow half-width of energy distribution, poor uniformity of powder composition, large particle size, etc. The effect of increasing infrared emissivity and large specific surface area

Inactive Publication Date: 2009-06-24
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN101215166A published on July 9, 2008 discloses an infrared radiation material which is a composite oxide and weight percentage of Mn, Fe, Co, Ni, Cu, Cr, Ti, Al, Zr, Mg with a weight percentage of 5-95% It is mixed with one or more of 5-95% zirconium silicate, cordierite, mullite, ilmenite, chromite, and silicon carbide, and then formed and sintered, which belongs to solid-state reaction, and the obtained powder has uniform composition Poor performance and large particle size, unsatisfactory infrared radiation performance
The infrared radiation material disclosed in the Chinese patent application CN1060193A published on April 8, 1992 is 50-70% Fe 2 o 3 , 20-25%Ni 2 o 3 , 5-15% ZnO 2 , 4~7%Co 2 o 3 , 1~3%SnO 2 The complex is prepared by the co-precipitation method. Since there are many initial reactants and the precipitation conditions of each metal ion are different, it is easy to cause the composition of the synthetic product to be uneven, and the half-width of the energy distribution is relatively narrow.

Method used

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  • Far infrared radiation nano material and preparation thereof
  • Far infrared radiation nano material and preparation thereof
  • Far infrared radiation nano material and preparation thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Weigh 2.048g magnesium nitrate (Mg(NO 3 ) 2 ·6H 2 O), 7.5g aluminum nitrate (Al(NO 3 ) 3 9H 2 O), 3.22g zirconium oxychloride (ZrOCl 2 ·6H 2 O), 0.476g nickel chloride (NiCl 2 2H 2 O) be dissolved in the mixed solvent of 5ml deionized water and 15ml absolute ethanol, get the Y(NO of 10ml0.01mol / L 3 ) 3 The solution was added thereto, and 20 g of dispersant polyethylene glycol (PEG) was added at the same time, the pH was adjusted to 2-3 with ammonia water, and heated and stirred at a temperature of 70° C. until a clear solution was obtained. Weigh 13.6g of tetrabutyl titanate and dissolve in 20ml of absolute ethanol, add 2g of citric acid as a complexing agent, and 5ml of ethylene glycol as a polymerization aid. At the same time, 8.32 g of tetraethyl orthosilicate was dissolved in 15 ml of absolute ethanol, 2 g of citric acid was added as a complexing agent, and 5 ml of ethylene glycol was used as a polymerization aid and dispersant. Add the above-mentioned et...

Embodiment 2

[0025] Weigh 1.830g magnesium chloride (MgCl 2 ·6H 2 O), 0.270g ferric chloride (FeCl 3 ·6H 2 O), 9.486g titanium chloride, 8.495g silicon tetrachloride, no nickel chloride added. Finally, the powder is calcined at 1250°C, and the composition is (Mg 0.9 Fe 0.1 ) O·Al 2 o 3 ·5SiO2 2 ·5TiO 2 · ZrO 2 0.01Y 2 o 3 . Other conditions are with embodiment 1.

Embodiment 3

[0027] Weigh 0.238g nickel chloride (NiCl 2 2H 2 O), 0.404g ferric nitrate (FeCl 3 9H 2 O). Other conditions are with embodiment 1, obtain infrared radiation powder material, and its component is (Mg 0.8 Ni 0.1 Fe 0.1 ) O·Al 2 o 3 4SiO2 2 4TiO 2 · ZrO 2 0.01Y 2 o 3 .

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Abstract

The invention relates to a far-infrared radiation nano material and a preparation method thereof, and belongs to the technical field of far-infrared radiation materials. The components and the mol ratio of the nano material are as follows: (Mg1-xMx)O:Al2O3:SiO2:TiO2:ZrO2:Re2O3=1:1:(4-6):(4-5):(1-2):(0.01-0.03), wherein, M is one or two of Fe and Ni, x equals 0-0.3, and Re is one of the rare earth elements Y, La and Dy. In the method, metal alkoxide and metal inorganic salt are taken as raw materials, citric acid is taken as a complexing agent, ethylene glycol is taken as a polymerizing additive, and polyethylene glycol is taken as a dispersant, sol is formed by heating the materials in water bath, and the sol is washed with absolute ethyl alcohol and dried to obtain precursor powder. Far-infrared radiation powder with the particle diameter of 20-50nm can be obtained by calcining the precursor powder. The power obtained by the method has small and even particle diameter, and higher infrared radiation rate at normal temperature and a broader waveband scopes (2-25mum).

Description

technical field [0001] The invention relates to a far-infrared radiation nanometer material and a preparation method thereof, belonging to the technical field of infrared radiation materials. Background technique [0002] In recent years, the health care and medical effects of far infrared rays on the human body have received more and more attention. In addition to traditional medical high-temperature infrared physiotherapy equipment, high-infrared radiation materials at room temperature can play their roles in health care, preservation, and drying in people's daily life, so they are widely used in plastics, textiles, clothing, paper, medical equipment, and ceramics. industry. At present, the infrared radiation materials widely used in the market are mainly cordierite, titanium oxide, zirconia and other materials. Among them, cordierite material has a high infrared radiation rate in the far infrared band, while titanium oxide and zirconia have a high infrared radiation rate...

Claims

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Application Information

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IPC IPC(8): C04B35/14C04B35/462C04B35/622
Inventor 刘庆峰刘茜张孔
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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