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Inorganic thermal insulation material

A thermal insulation material and inorganic thermal insulation technology, applied in ceramic products, other household appliances, household appliances, etc., can solve the problems of insufficient expansion of magnesium silicate fibers, inappropriate soaking time and water temperature, low strength, etc., to save molds The effect of investment, high yield and less drying time

Inactive Publication Date: 2013-04-03
邓克 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the immersion time and water temperature of sepiolite and attapulgite in the process are not appropriate, and the magnesium silicate fiber in the raw material is not fully expanded and does not form a high-strength skeleton, so the strength of the product is not high and it is difficult to construct.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 0.25Kg of aluminum silicate fiber cotton and 81.25Kg of water into the synthesis kettle, and stir for 7 minutes at normal pressure and water temperature of 75°C; Add 1.0Kg of sodium ester sulfonate into the synthesis kettle and stir for 12 minutes at a speed of 85 rpm; Add 0.25Kg of cellulose, 1.0Kg of magnesium oxide, 1.5Kg of ceramic microbeads and 4.5Kg of perlite into the synthesis kettle and stir for 55 minutes at a speed of 85 rpm; cool the reacted slurry to room temperature, and defoam naturally for 3 hours Afterwards, promptly make the slurry finished product of the present invention.

[0026] Just apply it on the inner or outer surface of the object that needs heat preservation. After testing, when the thickness is 3cm, the thermal conductivity is 0.059W / m·k at 70°C, and the thermal conductivity is 0.085W / m·k at 350°C. .

Embodiment 2

[0028] Add 0.75Kg of aluminum silicate fiber cotton and 70.0Kg of water into the synthesis kettle, and stir for 7 minutes at normal pressure and water temperature of 75°C; then add 5.0Kg of bogorskite, 3.5Kg of brucite and 0.5Kg of fast T into the synthesis kettle Stir at a speed of 85 rpm for 12 minutes; then 0.8Kg of lithium silicate, 2.5Kg of attapulgite, 0.75Kg of light magnesium carbonate, 0.10Kg of titanium dioxide, 0.75Kg of carboxymethyl cellulose, and 0.7 Kg, 5.0Kg of ceramic microbeads and 3.5Kg of perlite were added into the synthesis kettle and stirred for 55 minutes under 85 revs / min of the rotating speed; Finished slurry.

[0029] Just apply it on the inner or outer surface of the object that needs heat preservation. After testing, when the thickness is 3cm, the thermal conductivity is 0.060W / m·k at 70°C, and the thermal conductivity is 0.087W / m·k at 350°C. .

Embodiment 3

[0031] Add 0.5Kg of aluminum silicate fiber cotton and 75Kg of water into the synthesis kettle, and stir for 7 minutes at normal pressure and water temperature of 75°C; Add .75Kg into the synthesis kettle and stir for 12 minutes at a speed of 85 rev / min; Kg, 0.85Kg of magnesium oxide, 3.2Kg of ceramic microbeads and 4.0Kg of perlite are added to the synthesis kettle and stirred at a speed of 85 rpm for 55 minutes; the slurry that has completed the reaction is cooled to room temperature, and after 2 to 4 hours of natural defoaming , Promptly make the slurry finished product of the present invention.

[0032] Just apply it on the inner or outer surface of the object that needs heat preservation. After testing, when the thickness is 3cm, the thermal conductivity is 0.058W / m·k at 70°C, and the thermal conductivity is 0.083W / m·k at 350°C. .

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PUM

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Abstract

The invention provides an inorganic thermal insulation material, which is prepared by the following raw materials by weight: 2.5-6 parts of attapulgite, 3.5-4.5 parts of perlite, 1.5-5.0 parts of ceramic beads, 0.0-5 parts of palygorskite, 0.0-5.5 parts of sepiolite, 0.5-1.0 part of a fast penetrant T, 0.25-0.75 part of lightweight magnesium carbonate, 1.5-3.5 parts of brucite, 0.25-0.75 part of alumina silicate fiber cotton, 0.5-0.8 part of lithium silicate, 0.7-1.0 part of magnesium oxide, 0.10-0.25 part of titanium dioxide, 0.25-0.75 part of carboxymethyl cellulose and 70-81.25 parts of water. The thermal insulation material of the invention can be used at a temperature ranging from -40DEG C to 800DEG C, and has low thermal conductivity which can be 0.059W / m.k at a temperature of 70DEGC, especially low high temperature thermal conductivity, which can be 0.085W / m.k at a temperature of 350DEG C.

Description

technical field [0001] The invention relates to a thermal insulation material, in particular to an inorganic thermal insulation material. Background technique [0002] At present, most insulation materials are in a single structure, such as rock wool, glass fiber, ceramic fiber, etc., and their products are of fibrous structure, while perlite, ceramic microbeads, etc. are of particle microporous structure. During the use of these single-structure insulation materials, there is a problem that the insulation performance is greatly reduced due to the material structure and construction. [0003] The Chinese patent with publication number CN101269945B discloses a composite magnesium aluminum silicate thermal insulation material, which includes the following components by weight: 20-40 parts of bentonite, 15-40 parts of attapulgite, 10-40 parts of sepiolite, oxide 1-3 parts of titanium, 500-800 parts of water, 30-50 parts of brucite, 1-3 parts of ceramic fiber, 2-5 parts of alum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B28/00
Inventor 邓克黄俊章
Owner 邓克
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