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A kind of heat-resistant calcium silicate insulation material and its preparation method

A technology of thermal insulation material and calcium silicate, applied in the field of thermal insulation materials, can solve the problems of limited scope of use, unfavorable promotion and use, etc., and achieve the effects of improving product generation rate, good thermal insulation effect, and increasing specific surface area

Active Publication Date: 2017-12-29
ZHEJIANG ASKER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the maximum operating temperature of traditional calcium silicate is 650°C and 1000°C, and there is a gap in the insulation material between them, which undoubtedly limits its application range and is not conducive to its promotion and use.

Method used

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  • A kind of heat-resistant calcium silicate insulation material and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0032] (1) collect remaining lime in building construction, add water to form lime emulsion then in this lime;

[0033] (2) Using white carbon black as a siliceous raw material, pour the white carbon black into a grinder, and grind for 2 hours to obtain white carbon black particles, the fineness of which is less than 15 μm;

[0034] (3) Take 10 parts by mass of lime emulsion and 10 parts by mass of white carbon black particles; add 400 parts by mass of water after mixing the lime emulsion and white carbon black particles to obtain a reaction solution, stir the reaction solution for 30 minutes until the reaction solution is mixed Uniform;

[0035](4) Put the reaction solution in a vacuum and dark environment to gel at normal pressure for 24 hours; then pour the reaction solution into the autoclave and turn on the stirring device, heat up to 500°C; then make the autoclave The temperature inside is adjusted back and forth within the range of 500-600°C: first heat up, the tempera...

Embodiment 2

[0041] (1) collect remaining lime in building construction, add water to form lime emulsion then in this lime;

[0042] (2) Using white carbon black as a siliceous raw material, pour the white carbon black into a grinder, and grind for 2 hours to obtain white carbon black particles, the fineness of which is less than 15 μm;

[0043] (3) Take 10 parts by mass of lime emulsion and 11 parts by mass of white carbon black particles; add 450 parts by mass of water after mixing the lime emulsion and white carbon black particles to obtain a reaction solution, stir the reaction solution for 30 minutes until the reaction solution is mixed Uniform;

[0044] (4) Put the reaction solution in a vacuum and dark environment to gel at normal pressure for 24 hours; then pour the reaction solution into the autoclave and turn on the stirring device, heat up to 500°C; then make the autoclave The temperature inside is adjusted back and forth within the range of 500-600°C: first heat up, the temper...

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Abstract

The invention discloses a high-temperature-resistant calcium silicate thermal insulation material and a preparation method thereof. The calcium silicate thermal insulation material is mainly composed of 5CaO. 6SiO2. 5H2O and 6CaO. 6SiO2. 5H2O composition, of which 5CaO. 6SiO2﹒5H2O accounts for 30‑45wt% of the total weight of calcium silicate insulation materials, 5CaO﹣ The maximum service temperature of 6SiO2﹒5H2O is 650℃; 6CaO﹣ 6SiO2﹒5H2O accounts for 55‑70wt% of the total weight of calcium silicate insulation materials, 6CaO﹣ The maximum service temperature of 6SiO2﹒5H2O is 1000℃. The calcium silicate insulation material suitable for 650-800°C is formed by uniform mixing of the two substances. This type of calcium silicate thermal insulation material is prepared by a reaction process combining dynamic method and static method, which fills the vacancy of calcium silicate thermal insulation material between 650-800°C, has unique advantages, and has a good thermal insulation effect. In the preparation process, the fineness of raw materials is optimized, the reaction rate is accelerated, and the product formation rate is improved.

Description

technical field [0001] The invention relates to a thermal insulation material, in particular to a high temperature resistant calcium silicate thermal insulation material and a preparation method thereof. Background technique [0002] The global thermal insulation materials are developing in the direction of high efficiency, energy saving, thin layer, heat insulation, waterproof and external protection. While developing new thermal insulation materials and conforming to structural thermal insulation and energy-saving technologies, more emphasis is placed on the targeted use of thermal insulation materials , Design and construction according to standard specifications, strive to improve thermal insulation efficiency and reduce costs. This new type of heat-resistant calcium silicate insulation material can be used in buildings, vehicles and ships, petrochemical oil tank equipment, grain depots, cold storage, containers, pipelines and other places. [0003] Calcium silicate ins...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02C04B28/04
Inventor 裘益奇裘茂法雷泉兴
Owner ZHEJIANG ASKER TECH
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