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Preparation method of high-stability self-insulation concrete block

A concrete block and self-insulation technology, which is applied in the field of building materials, can solve the problems of poor structural performance and stability of self-insulation wall materials, and achieve the effects of improving compatibility and stability, filling performance and performance.

Inactive Publication Date: 2020-04-03
苏木兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved by the present invention: Aiming at the problem of poor structural performance and stability of existing self-insulating wall materials, a preparation method of highly stable self-insulating concrete blocks is provided

Method used

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  • Preparation method of high-stability self-insulation concrete block

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In terms of parts by weight, weigh 45 parts of deionized water, 10 parts of cetyltrimethylammonium bromide and 1 part of nano-silicon dioxide in Erlenmeyer flasks, stir and mix them, and place them at room temperature for ultrasonic dispersion for 10 minutes , to obtain a dispersion slurry; then weigh 45 parts of dispersion slurry, 10 parts of hydrogen-containing silicone oil with a viscosity of 100mm2 / s at 25°C and 3 parts of vinyl-terminated polydimethylsiloxane in parts by weight. In a three-necked flask, stir and mix and place it under 200W for ultrasonic dispersion for 10 minutes to collect the composite emulsion. According to the mass ratio of 1:5000, add the chloroplatinic acid catalyst to the composite emulsion, and then stir and mix at 5000r / min for 3 minutes, and then Stand at room temperature for 20 hours, then vacuum dry at 45°C for 3 hours to obtain dispersed particles and grind them to collect filled particles; weigh 45 parts of filled particles, 20 parts o...

Embodiment 2

[0024] In terms of parts by weight, weigh 47 parts of deionized water, 12 parts of cetyltrimethylammonium bromide and 2 parts of nano-silicon dioxide in Erlenmeyer flasks, stir and mix them, and place them at room temperature for ultrasonic dispersion for 12 minutes , to obtain a dispersion slurry; then weigh 47 parts of dispersion slurry, 12 parts of hydrogen-containing silicone oil with a viscosity of 100mm2 / s at 25°C and 4 parts of vinyl-terminated polydimethylsiloxane in parts by weight. In a three-necked flask, stir and mix and place it under 250W for ultrasonic dispersion for 12min, collect the composite emulsion, add the chloroplatinic acid catalyst to the composite emulsion according to the mass ratio of 1:5000, and then stir and mix at 7000r / min for 4min, then Stand at room temperature for 22 hours, then vacuum dry at 47°C for 4 hours to obtain dispersed particles and grind them to collect filled particles; weigh 47 parts of filled particles, 22 parts of rubber powder,...

Embodiment 3

[0026]In terms of parts by weight, weigh 50 parts of deionized water, 15 parts of cetyltrimethylammonium bromide and 2 parts of nano-silicon dioxide in Erlenmeyer flasks, stir and mix them, and place them at room temperature for ultrasonic dispersion for 15 minutes , to obtain a dispersion slurry; then weigh 50 parts of dispersion slurry, 15 parts of hydrogen-containing silicone oil with a viscosity of 100mm2 / s at 25°C and 5 parts of vinyl-terminated polydimethylsiloxane in parts by weight. In a three-neck flask, stir and mix and place it under 300W for ultrasonic dispersion for 15 minutes to collect the composite emulsion. According to the mass ratio of 1:5000, add the chloroplatinic acid catalyst to the composite emulsion, and then stir and mix at 8000r / min for 5 minutes, and then Leave to react at room temperature for 24 hours, then vacuum-dry at 50°C for 5 hours to obtain dispersed particles and grind them to collect filled particles; in parts by weight, weigh 50 parts of f...

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Abstract

The invention relates to a preparation method of a high-stability self-insulation concrete block, and belongs to the technical field of building materials. According to the technical scheme, firstly,nano silicon dioxide is adopted for coating modification, meanwhile, in the modification preparation process, a cationic small molecular surfactant is adopted, partial charges on the surfaces of the SiO2 particles are neutralized through an electrostatic adsorption effect, the lipophilicity of the particles is increased while the hydrophilicity of the particles is reduced so that the surface activity of SiO2 particles is improved, organic silicon elastomer microspheres coated with nano silicon dioxide are prepared through over-emulsion polymerization, the morphology and the particle size of the organic silicon microspheres can be adjusted through the dosage of SiO2 and CTAB, the nano silicon dioxide particles not only play a role of an emulsifier, but also can be adsorbed to the surfaces of the organosilicone elastomer microspheres so that microsphere surface performances are improved and the dispersion performance of the material is excellent. In the filling modification process, thedispersion performance of the material is effectively improved, the dispersion stability strength is further improved, so that the stability performance of the material is improved.

Description

technical field [0001] The invention relates to a preparation method of a highly stable self-insulating concrete block, which belongs to the technical field of building materials. Background technique [0002] With the promotion of wall material reform, emerging block materials mainly include: ordinary hollow concrete blocks, light aggregate hollow concrete blocks, aerated concrete blocks, etc. The self-insulating aerated concrete block is an ideal self-energy-saving system wall masonry material. Self-insulating aerated concrete is a wall building material that integrates insulation and enclosure. Its preparation process is similar to ordinary aerated concrete. The raw materials in this paper are mainly cement, fly ash, slag powder and gypsum. The building exterior wall system built by it can meet the building energy saving standard of 65%. The self-insulating aerated concrete block mainly has the following excellent properties. [0003] Therefore, it is necessary to vigo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B20/10C04B38/10
CPCC04B20/1051C04B20/1074C04B28/04C04B2201/32C04B2201/50C04B14/062C04B16/04C04B18/08C04B14/08C04B38/10
Inventor 苏木兰欧阳萍萍
Owner 苏木兰
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