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Preparation method of nanometer far-infrared ceramic

A kind of far-infrared ceramics and nanotechnology, which is applied in the field of preparation of nano-far-infrared ceramics, can solve the problems of low emissivity of far-infrared radiation, and achieve the effects of enriching pore structure, inhibiting aggregation, and excellent adsorption

Inactive Publication Date: 2019-01-11
陈琪峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the average particle size of far-infrared ceramic powder is still in the micron level, and its far-infrared radiation emissivity is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] Weigh seaweed and put it into a tissue pulverizer, pulverize it for 20 minutes to obtain a pulverized product, mix the pulverized product with ethylammonium nitrate and lecithin with a mass fraction of 30% at a mass ratio of 10:50:1, and then put it into an ultrasonic oscillator , reacted with ultrasonic oscillation at 25kHz frequency for 1h to obtain a mixed solution; put the mixed solution into a hydrothermal reaction kettle, heat up to 180°C, pre-carbonize with hydrothermal treatment for 1h, filter and separate to obtain a filter residue, and use absolute ethanol and deionized Rinse with water for 3 times, dry and transfer to a carbonization furnace, under the protection of carbon dioxide, heat up to 400°C, continue carbonization for 1 hour, and then discharge to obtain self-made mesoporous seaweed charcoal for later use; weigh 12 parts of magnesium chloride by weight , 50 parts of aluminum chloride, 35 parts of silicon tetrachloride, 50 parts of silicon tetrachloride...

example 2

[0023] Weigh seaweed and put it into a tissue pulverizer, pulverize it for 25 minutes to obtain a pulverized product, mix the pulverized product with ethylammonium nitrate and lecithin with a mass fraction of 30% at a mass ratio of 10:50:1, and then put it into an ultrasonic oscillator , reacted with ultrasonic oscillation at a frequency of 30kHz for 1h to obtain a mixed solution; put the mixed solution into a hydrothermal reaction kettle, heat up to 190°C, pre-carbonize for 2 hours, and then filter and separate to obtain a filter residue, respectively, with absolute ethanol and deionized Rinse with water 4 times, transfer to a carbonization furnace after drying, heat up to 450°C under the protection of carbon dioxide, continue carbonization for 1 hour, and discharge the material to obtain self-made mesoporous seaweed charcoal for later use; weigh 14 parts of magnesium chloride by weight , 55 parts of aluminum chloride, 40 parts of silicon tetrachloride, 55 parts of silicon tet...

example 3

[0025] Weigh seaweed and put it into a tissue pulverizer, pulverize for 30 minutes to obtain pulverized product, mix the pulverized product with ethylammonium nitrate and lecithin with a mass fraction of 30% at a mass ratio of 10:50:1 and put it into an ultrasonic oscillator , reacted with ultrasonic oscillation at a frequency of 35kHz for 2 hours to obtain a mixed solution; put the mixed solution in a hydrothermal reaction kettle, heat up to 200°C, pre-carbonize for 2 hours, and then filter and separate to obtain a filter residue, respectively, with absolute ethanol and deionized Rinse with water for 5 times, dry and transfer to a carbonization furnace, under the protection of carbon dioxide, heat up to 500°C, continue carbonization for 2 hours, and then discharge to obtain self-made mesoporous seaweed charcoal for later use; weigh 15 parts of magnesium chloride by weight , 60 parts of aluminum chloride, 45 parts of silicon tetrachloride, 60 parts of silicon tetrachloride, 30 ...

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Abstract

The invention relates to a preparation method of a nanometer far-infrared ceramic, and belongs to the technical field of ceramic material preparation. According to the preparation method, laver is taken as a raw material, is immersed in an ionic liquid, and then is subjected to hydro-thermal pre-charing, and further charing is carried out under the effect of carbon oxide so as to obtain mesoporousalga charcoal; the mesoporous alga charcoal is taken as a template carrier, liquid phase coprecipitation is adopted to prepare a far-infrared ceramic blank material; and at last, high temperature sintering is carried out so as to obtain the nanometer far-infrared ceramic. The particle size of the nanometer far-infrared ceramic is uniform, nanometer grade is reaches, the infrared radiation emission rate is high, and the application prospect is promising.

Description

technical field [0001] The invention relates to a preparation method of nanometer far-infrared ceramics, which belongs to the technical field of preparation of ceramic materials. Background technique [0002] Ceramic powders with far-infrared radiation properties are called far-infrared ceramic powders. Above medium temperature (>150°C) far-infrared ceramic powder is mainly black ceramic powder containing Mn, Fe, Co, Ni, Cu, Cr and its oxides, SiC, etc. It is used in high-temperature heating furnaces, metal heat treatment furnaces, petroleum Surface coating of furnaces, boilers, radiant heaters, dryers. Normal temperature (≤150℃) far-infrared ceramic powder is MgO-Al 2 o 3 -TiO 2 -ZrO 2 It is a white ceramic powder with a wide range of uses. It can be used in plastics, textiles, clothing, papermaking, medical equipment and ceramics industries by mixing and coating methods. [0003] For more than 20 years, the research and application of black far-infrared ceramic po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/14C04B35/626
CPCC04B35/14C04B35/626C04B2235/3206C04B2235/3217C04B2235/3244C04B2235/3289
Inventor 陈琪峰丁春美
Owner 陈琪峰
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