CN113754403A - Thermal-insulation environment-friendly material based on waste residues and preparation method thereof - Google Patents
Thermal-insulation environment-friendly material based on waste residues and preparation method thereof Download PDFInfo
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- CN113754403A CN113754403A CN202111170751.4A CN202111170751A CN113754403A CN 113754403 A CN113754403 A CN 113754403A CN 202111170751 A CN202111170751 A CN 202111170751A CN 113754403 A CN113754403 A CN 113754403A
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- friendly material
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
Abstract
The invention discloses a waste residue-based heat-insulating environment-friendly material and a preparation method thereof, wherein building waste materials are added into distilled water, stirred to form slurry, wet-ball milled in a ball mill to form viscous fine powder, and dried to obtain fine powder waste; adding sepiolite fibers into distilled water, uniformly stirring to form a stable dispersion liquid, and rapidly performing ultrasonic treatment on the fine powder waste for 20-60min to obtain dispersion slurry; adding the seaweed mud and the thickening agent into the dispersion slurry, stirring at constant temperature for 10-20min, then heating and stirring for 20-50min, and evaporating to dryness to obtain a mixture; adding the sodium methyl silicate into the mixture, stirring to form a prefabricated slurry, and aging for 20-30min to obtain the heat-insulating environment-friendly material. The invention takes building waste materials as raw materials, forms powder materials after ball milling, forms doping in sepiolite solution, forms fine powder waste materials with sepiolite fibers as a clamping structure after drying, and ensures the recycling of the building waste materials and the solidification stability in subsequent use.
Description
Technical Field
The invention belongs to the field of environment-friendly materials, and particularly relates to a waste residue-based heat-insulating environment-friendly material and a preparation method thereof.
Background
The energy-saving and environment-friendly concept means that human beings and nature mutually help, the environment is harmonious, the life source is natural, the health comes from environment protection, energy is not wasted, the healthy and steady development of the society is promoted, energy conservation and environment protection are advocated, the existing energy consumption is saved, environment-friendly new energy development is advocated, and the society is benefited.
Building heat preservation is a measure for reducing the indoor heat of a building to be emitted outdoors, and plays an important role in creating a suitable indoor heat environment and saving energy. The building heat preservation mainly takes measures from the external protective structure of the building, simultaneously reduces the measure of the indoor heat of the building to be emitted to the outdoor, and plays an important role in creating a proper indoor heat environment and saving energy. The building heat preservation mainly takes measures from the external enclosure structure of the building, and simultaneously, comprehensive consideration is also needed from the aspects of room orientation, the plane and body type design of single buildings, the overall arrangement of building groups and the like.
Meanwhile, with the advance of urban construction, a large amount of construction waste materials are generated, so that the environmental pollution is caused, and the land is occupied.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a waste residue-based heat-insulating environment-friendly material, which solves the defects of the existing heat-insulating material and the treatment difficulty of the building waste material.
In order to achieve the technical purpose, the technical scheme of the invention is as follows:
a preparation method of a waste residue-based heat-insulating environment-friendly material comprises the following steps:
step 1, adding building waste materials into distilled water, stirring to form slurry, performing wet ball milling in a ball mill to form viscous fine powder, and drying to obtain fine powder waste, wherein the mass ratio of the building waste materials to the distilled water is 10:2-3, the stirring speed is 600-;
step 2, adding sepiolite fibers into distilled water, uniformly stirring to form stable dispersion liquid, and rapidly performing ultrasonic treatment on the fine powder waste for 20-60min to obtain dispersion slurry; the stirring speed is 1000-2000r/min, the concentration of the sepiolite in the distilled water is 100-200g/L, the adding amount of the fine powder waste is 40-70% of the mass of the sepiolite, the rapid ultrasonic temperature is 80-90 ℃, and the ultrasonic frequency is 100-200 kHz;
step 3, adding the seaweed mud and the thickening agent into the dispersed slurry, stirring at constant temperature for 10-20min, then heating and stirring for 20-50min, and evaporating to dryness to obtain a mixture; the adding amount of the seaweed mud is 30-50% of the mass of the sepiolite fibers, the thickening agent adopts high-substituted hydroxypropyl cellulose, the adding amount is 3-10% of the mass of the sepiolite fibers, the constant-temperature stirring temperature is 10-20 ℃, the stirring speed is 500-1000r/min, the temperature rise stirring temperature is 80-90 ℃, the stirring speed is 1000-2000r/min, and the evaporation temperature is 150-180 ℃;
and 4, adding the sodium methyl silicate into the mixture, stirring to form a prefabricated slurry, and aging for 20-30min to obtain the heat-insulating environment-friendly material, wherein the mass ratio of the sodium methyl silicate to the mixture is 2:4-5, the stirring speed is 800r/min, the aging temperature is 30-50 ℃, and the environment humidity is 10%.
An environment-friendly heat-insulating material is prepared by adopting the method.
From the above description, it can be seen that the present invention has the following advantages:
1. the invention solves the defects of the existing heat-insulating material and the treatment difficulty of the building waste material, takes the building waste material as the raw material, forms powder after ball milling, forms doping in the sepiolite solution, forms fine powder waste material with the sepiolite fiber as a clamping structure after drying, ensures the recycling of the building waste material and the solidification stability in the subsequent use.
2. According to the invention, methyl sodium silicate is used as a rigid building curing agent, stable glycidyl polymerization is formed by utilizing the silicon hydroxyl of the methyl sodium silicate and the hydroxyl structure of sepiolite fibers, and multi-specific surface polymerization is formed by utilizing the liquid permeability of the methyl silicon hydroxyl, so that the binding force is greatly improved.
3. According to the invention, the characteristics of the seaweed mud are utilized to form a porous structure of which the porous structure is matched with the porous structure of the sepiolite, so that the permeability of the sodium methylsilicate is realized, the expansion of the specific surface is further promoted, a good adhesion effect is realized, and meanwhile, the porous structure is matched with the sepiolite fibers to form the sound absorption and noise reduction effects.
Claims (6)
1. A preparation method of a heat-insulating environment-friendly material based on waste residues is characterized by comprising the following steps: the method comprises the following steps:
step 1, adding building waste materials into distilled water, stirring to form slurry, performing wet ball milling in a ball mill to form viscous fine powder, and drying to obtain fine powder waste;
step 2, adding sepiolite fibers into distilled water, uniformly stirring to form stable dispersion liquid, and rapidly performing ultrasonic treatment on the fine powder waste for 20-60min to obtain dispersion slurry;
step 3, adding the seaweed mud and the thickening agent into the dispersed slurry, stirring at constant temperature for 10-20min, then heating and stirring for 20-50min, and evaporating to dryness to obtain a mixture;
and 4, adding the sodium methyl silicate into the mixture, stirring to form a prefabricated slurry, and aging for 20-30min to obtain the heat-insulating environment-friendly material.
2. The method for preparing the waste residue-based heat-insulating environment-friendly material as claimed in claim 1, characterized in that: the mass ratio of the building waste material and the distilled water in the step 1 is 10:2-3, the stirring speed is 600-1000r/min, the wet ball milling temperature is 60-80 ℃, the ball milling pressure is 2-4MPa, and the drying temperature is 100-120 ℃.
3. The method for preparing the waste residue-based heat-insulating environment-friendly material as claimed in claim 1, characterized in that: the stirring speed in the step 2 is 1000-2000r/min, the concentration of the sepiolite in the distilled water is 100-200g/L, the adding amount of the fine powder waste is 40-70% of the mass of the sepiolite, the rapid ultrasonic temperature is 80-90 ℃, and the ultrasonic frequency is 100-200 kHz.
4. The method for preparing the waste residue-based heat-insulating environment-friendly material as claimed in claim 1, characterized in that: the adding amount of the seaweed mud in the step 3 is 30-50% of the mass of the sepiolite fibers, the thickening agent adopts high-substituted hydroxypropyl cellulose, the adding amount is 3-10% of the mass of the sepiolite fibers, the constant-temperature stirring temperature is 10-20 ℃, the stirring speed is 500-2000 r/min, the heating and stirring temperature is 80-90 ℃, the stirring speed is 1000-2000r/min, and the evaporation temperature is 150-180 ℃.
5. The method for preparing the waste residue-based heat-insulating environment-friendly material as claimed in claim 1, characterized in that: the mass ratio of the sodium methyl silicate to the mixture in the step 4 is 2:4-5, the stirring speed is 500-800r/min, the aging temperature is 30-50 ℃, and the environmental humidity is 10%.
6. A heat-insulating environment-friendly material is characterized in that: the material is prepared by the method of any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111170751.4A CN113754403A (en) | 2021-10-08 | 2021-10-08 | Thermal-insulation environment-friendly material based on waste residues and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111170751.4A CN113754403A (en) | 2021-10-08 | 2021-10-08 | Thermal-insulation environment-friendly material based on waste residues and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113754403A true CN113754403A (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111170751.4A Withdrawn CN113754403A (en) | 2021-10-08 | 2021-10-08 | Thermal-insulation environment-friendly material based on waste residues and preparation method thereof |
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| CN (1) | CN113754403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114276063A (en) * | 2022-01-05 | 2022-04-05 | 绍兴文理学院元培学院 | Light building material and preparation method thereof |
-
2021
- 2021-10-08 CN CN202111170751.4A patent/CN113754403A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114276063A (en) * | 2022-01-05 | 2022-04-05 | 绍兴文理学院元培学院 | Light building material and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211207 |
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| WW01 | Invention patent application withdrawn after publication |