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High-temperature-resistant nano light ceramic material and preparation method thereof

A lightweight ceramic, high-temperature-resistant technology, applied in the field of thermal insulation, can solve the problems of high density, low thermal conductivity, and high thermal conductivity of high-temperature thermal insulation materials, and achieve the effects of low density, low thermal conductivity, and high-efficiency thermal insulation.

Active Publication Date: 2020-05-26
SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current thermal insulation materials have the problems of large thermal conductivity and high density of high-temperature thermal insulation materials (see Table 1 for the performance parameter table of existing thermal insulation materials). With the development trend of lightweight thermal equipment, a lightweight, low thermal conductivity, durable High-temperature insulation materials upgrade existing insulation products for traditional thermal equipment

Method used

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  • High-temperature-resistant nano light ceramic material and preparation method thereof
  • High-temperature-resistant nano light ceramic material and preparation method thereof
  • High-temperature-resistant nano light ceramic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] High temperature resistant nano light ceramic material, the unit is mass percentage.

[0037] Main material system:

[0038]

[0039] Admixture (0.901% of the main material system):

[0040] Cetyltrimethylammonium bromide 0.001%

[0041] Methylcellulose 0.2%;

[0042] Ammonia 0.7%

[0043] The preparation process of the high temperature resistant nano light ceramic material in this embodiment is as follows:

[0044] S1. Dissolve cetyltrimethylammonium bromide and methyl cellulose in water, place in a fiber disperser and add silica sol to stir, set the speed at 600 rpm, and stir for 3 minutes to obtain nano-scale bubble solution to stabilize the bubbles;

[0045] S2. Add rho-alumina powder to the solution in step S1, keep the rotational speed at 600 rpm, stir for 1 min, and the solution becomes a suspension of bubbles wrapped in white ceramic powder.

[0046]Continue to add fibers, increase the speed of the fiber disperser to 800 rpm, and stir for 8 minutes to o...

Embodiment 2

[0054] High temperature resistant nano light ceramic material, the unit is mass percentage.

[0055] Main material system:

[0056]

[0057] Admixture (0.802% of the main material system):

[0058]

[0059]

[0060] The preparation process of the high temperature resistant nano light ceramic material in this embodiment is as follows:

[0061] S1. Dissolve sodium dodecylbenzenesulfonate, sulfurous acid pulp waste liquid and gum arabic in water, place in a fiber disperser and add silica sol to stir, set the speed at 700 rpm, and stir for 4 minutes to obtain a nanometer bubble solution with stable bubbles;

[0062] S2. Add aluminum nitrate nonahydrate to the solution in step S1, keep the speed at 600 rpm, stir for 1 min, and the solution becomes a viscous suspension of air bubbles.

[0063] Continue to add fibers, increase the speed of the fiber disperser to 1000 rpm, and stir for 8 minutes to obtain a high-viscosity suspension solution in which the chopped fibers are...

Embodiment 3

[0071] High temperature resistant nano light ceramic material, the unit is mass percentage.

[0072] Main material system:

[0073]

[0074] Admixture (0.752% of the main material system):

[0075]

[0076] The preparation process of the high temperature resistant nano light ceramic material in this embodiment is as follows:

[0077] S1. Dissolve sodium dodecylbenzenesulfonate, sulfurous acid pulp waste liquid and gum arabic in water, place in a fiber disperser and add silica sol to stir, set the speed at 700 rpm, and stir for 4 minutes to obtain a nanometer bubble solution with stable bubbles;

[0078] S2. Add aluminum chloride and aluminum sulfate to the solution in step S1, keep the rotation speed set at 600 rpm, stir for 1 min, and the solution becomes a viscous suspension of bubbles.

[0079] Continue to add fibers, increase the speed of the fiber disperser to 1000 rpm, and stir for 8 minutes to obtain a high-viscosity suspension solution in which the chopped fib...

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Abstract

The invention relates to a high-temperature-resistant light nano ceramic material and a preparation method thereof. The high-temperature-resistant light nano ceramic has a large number of nano-pore structures; the thermal insulation material is ensured to be light in weight and low in density, the volume density can reach 0.1-0.4 g / cm<3>, the thermal insulation material has the characteristic of low thermal conductivity, the thermal conductivity coefficient (1100 DEG C) can reach 0.07-0.11 w / m<-K>, more efficient thermal insulation is achieved, and the heat loss is effectively reduced. The material has a low heat conductivity coefficient equivalent to that of the known lowest heat conduction material aerogel at a low temperature, and is simpler than the aerogel material in preparation process, much lower in cost and easier to popularize in the market; after the temperature exceeds 1100 DEG C, compared with an aerogel material, the thermal insulation material disclosed by the embodimentof the invention has the absolute advantage of low heat conductivity coefficient, the aerogel material cannot meet the long-time use requirement of 1000 DEG C or above, but the product provided by the invention can resist the highest temperature of 1700 DEG C and has the obvious high-temperature-resistant advantage.

Description

technical field [0001] The invention belongs to the field of heat insulation and heat preservation, and in particular relates to a high-temperature-resistant nano light-weight ceramic material for high-temperature heat consumption equipment and a preparation method thereof. Background technique [0002] High-temperature-resistant insulation materials are a very effective technical way to achieve energy saving and consumption reduction in thermal equipment and improve production efficiency. The problem of thermal insulation upgrade and transformation of existing equipment. The current thermal insulation materials have the problems of large thermal conductivity and high density of high-temperature thermal insulation materials (see Table 1 for the performance parameters of existing thermal insulation materials). With the development trend of lightweight thermal equipment, a light-weight, low thermal conductivity, High-temperature insulation materials upgrade the existing insul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/80C04B35/82C04B38/10
CPCC04B35/82C04B38/106C04B2235/3217C04B2235/443C04B2235/444C04B2235/448C04B2235/3418C04B2235/5232C04B2235/5228C04B2235/5224C04B2235/9607C04B2235/77C04B2235/96C04B2235/9615C04B35/803C04B38/0054C04B38/0067C04B38/0074
Inventor 牟善浩魏美玲王守兴张雍李杨程之强栾强周长灵王重海徐丹丹巩晓霖
Owner SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
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