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Preparation method of building heat insulation material

A technology for building thermal insulation and mixing materials, applied in the field of building materials, can solve the problems of insufficient thermal insulation and high thermal conductivity, and achieve the effects of good interface compatibility, high porosity, and good compressive strength.

Inactive Publication Date: 2019-02-19
刘兴海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Single building materials, such as hollow blocks, aerated concrete, etc., have a large thermal conductivity, generally 20 times that of high-efficiency thermal insulation materials. With the implementation of the 65% energy-saving standard for buildings in my country, single-material buildings can no longer meet the requirements of thermal insulation. Therefore, there is an urgent need for a building material with good thermal insulation effect

Method used

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  • Preparation method of building heat insulation material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of building insulation material, comprising the following steps:

[0026] S1. After uniformly mixing Kiryu sand, vermiculite, diatomite and medical stone, calcining at 1000° C. for 8 hours, cooling to obtain the mixture; dissolving 1 part by weight of ammonia water in 4 parts by weight of water, Then add 80 parts by weight of ethanol, stir evenly, then add 30 parts by weight of tetraethyl orthosilicate, stir for 1 hour, finally add 40 parts by weight of the mixture, mix and stir evenly, and then place it in the molding mold Sealed in a medium for 5 hours, demolded, and then dried at a temperature of 250°C and a pressure of 8Mpa under supercritical conditions for 20 hours to obtain a modified mixture, and then sprayed 0.05 parts by weight of a hydrophobic agent on the surface of the modified mixture to obtain a hydrophobic modified mixture ,spare;

[0027] S2. After mixing straw powder, phenolic compound, and catalyst in parts by weight in a mass ra...

Embodiment 2

[0040] A preparation method of building insulation material, comprising the following steps:

[0041]S1. After uniformly mixing Kiryu sand, vermiculite, diatomite and medical stone, calcining at 1100° C. for 10 hours, cooling to obtain the mixture; dissolving 1.5 parts by weight of ammonia water in 6 parts by weight of water, Then add 90 parts by weight of ethanol, stir evenly, then add 35 parts by weight of tetraethyl orthosilicate, stir for 1.5h, and finally add 45 parts by weight of the mixture, mix and stir evenly, and then place it in the molding sealed in the mold for 8 hours, demolded, and then dried at a temperature of 255° C. and a pressure of 9 MPa under supercritical conditions for 23 hours to obtain a modified mixture, and then sprayed 0.08 parts by weight of a hydrophobic agent on the surface of the modified mixture to obtain and set aside;

[0042] S2. Mix straw powder, phenolic compound, and catalyst in mass ratio 1:4:0.15, heat up to 140°C at 23°C / min, keep for...

Embodiment 3

[0055] A preparation method of building insulation material, comprising the following steps:

[0056] S1. After uniformly mixing Kiryu sand, vermiculite, diatomaceous earth and medical stone, calcining at 1200° C. for 12 hours, cooling to obtain the mixture; dissolving 2 parts by weight of ammonia water in 8 parts by weight of water, Then add 100 parts by weight of ethanol, stir evenly, then add 40 parts by weight of tetraethyl orthosilicate, stir for 2 hours, finally add 50 parts by weight of the mixture, mix and stir evenly, and then place it in the molding mold Sealed in a medium for 10 hours, demolded, and then dried at a temperature of 260°C and a pressure of 10Mpa under supercritical conditions for 25 hours to obtain a modified mixture, and then sprayed 0.1 parts by weight of a hydrophobic agent on the surface of the modified mixture to obtain a hydrophobic modified mixture ,spare;

[0057] S2. After mixing straw powder, phenolic compound, and catalyst in parts by weigh...

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Abstract

The invention provides a preparation method of a building heat insulation material. The method includes the following steps that S1, Kiryu sand, vermiculite, kieselguhr and medical stone are mixed evenly, calcined and cooled to obtain a mixture, and aqueous ammonia, ethanol, ethyl orthosilicate and the mixture are mixed and stirred evenly to obtain a hydrophobically modified mixture; S2, straw powder, a phenolic compound and a catalyst are mixed by weight part and react to obtain a straw liquefaction liquid; S3, a starch solution, water, sodium polyacrylate and sodium formaldehyde sulfoxylateare mixed to obtain a first mixed material; S4, acrylic acid, N,N,N',N',N''-pentamethyldiethylenetriamine, polyvinyl alcohol, the hydrophobically modified mixture and the first mixed material are mixed evenly to obtain a second mixed material; S5, the straw liquefaction liquid, the second mixed material, a cross-linking agent, a curing agent, a foaming agent and an emulsifying agent react to obtain the heat insulation material. The heat insulation material can achieve an excellent heat insulation and sound insulation effect.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a preparation method of a building thermal insulation material. Background technique [0002] With the development of society, building materials are getting more and more attention, especially building materials that can achieve multiple functions, such as thermal insulation, moisture-proof and sound insulation. The current building insulation materials are generally divided into single building materials and composite building materials according to the different materials selected. Single building materials, such as hollow blocks, aerated concrete, etc., have a large thermal conductivity, generally 20 times that of high-efficiency thermal insulation materials. With the implementation of the 65% energy-saving standard for buildings in my country, single-material buildings can no longer meet the requirements of thermal insulation. Therefore, there is an urgent need fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/24C04B38/02
CPCC04B28/24C04B2201/50C04B14/14C04B14/202C04B14/08C04B14/04C04B24/26C04B24/16C04B24/125C04B24/129C04B24/287C04B24/121C04B24/38C04B24/04C04B24/2623C04B2103/65C04B18/24C04B38/02
Inventor 刘兴海
Owner 刘兴海
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