CN113200762A - Capsule type composite thermal insulation material and preparation method thereof - Google Patents
Capsule type composite thermal insulation material and preparation method thereof Download PDFInfo
- Publication number
- CN113200762A CN113200762A CN202110456365.5A CN202110456365A CN113200762A CN 113200762 A CN113200762 A CN 113200762A CN 202110456365 A CN202110456365 A CN 202110456365A CN 113200762 A CN113200762 A CN 113200762A
- Authority
- CN
- China
- Prior art keywords
- capsule
- slurry
- solid waste
- aerogel
- ultralight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002775 capsule Substances 0.000 title claims abstract description 93
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 239000012774 insulation material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 72
- 239000002002 slurry Substances 0.000 claims abstract description 68
- 239000004568 cement Substances 0.000 claims abstract description 51
- 239000004964 aerogel Substances 0.000 claims abstract description 39
- 239000002910 solid waste Substances 0.000 claims abstract description 36
- 239000003094 microcapsule Substances 0.000 claims abstract description 35
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 29
- 239000011810 insulating material Substances 0.000 claims abstract description 25
- 239000002893 slag Substances 0.000 claims abstract description 24
- 239000003245 coal Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011162 core material Substances 0.000 claims abstract description 20
- 239000006260 foam Substances 0.000 claims abstract description 20
- 239000003381 stabilizer Substances 0.000 claims abstract description 20
- 238000005187 foaming Methods 0.000 claims abstract description 18
- 239000004088 foaming agent Substances 0.000 claims abstract description 16
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 13
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 4
- 239000011147 inorganic material Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 29
- 238000003756 stirring Methods 0.000 claims description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 6
- 235000013539 calcium stearate Nutrition 0.000 claims description 6
- 239000008116 calcium stearate Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 229920002748 Basalt fiber Polymers 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004966 Carbon aerogel Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000004965 Silica aerogel Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000007480 spreading Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 239000002861 polymer material Substances 0.000 abstract 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 11
- 230000007547 defect Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011489 building insulation material Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
Abstract
The invention discloses a capsule type composite heat-insulating material and a preparation method thereof, wherein the capsule type composite heat-insulating material comprises ultralight solid waste modified foaming cement slurry, chopped fibers and capsule particles. The ultra-light solid waste modified foaming cement slurry mainly comprises carbide slag, coal gangue powder, cement, water, a water reducing agent, a foaming agent, a foam stabilizer and an early strength agent. The capsule particle consists of a capsule wall and a core material wrapped inside. According to the difference of the materials used for the capsule wall, the capsule is divided into microcapsules (the wall material is 5-200 mu m) and conventional capsules (the wall material is about 1 cm). The wall material of the microcapsule is an inorganic material or a high polymer material, the wall material of the conventional capsule is a PE transparent plastic shell, and the core material of the capsule is made of aerogel material. The problems of poor toughness, poor heat insulation effect, poor flame retardance, high cost and complex manufacturing process of the existing heat insulation material are solved, the utilization of solid waste resources is realized, and the building development concept of green and environmental protection is met.
Description
Technical Field
The invention relates to a capsule type composite heat-insulating material and a preparation method thereof, belonging to the technical field of building heat-insulating engineering.
Background
Most of heat insulation materials used in buildings in China are inorganic heat insulation materials before the 80 s in the 20 th century, and the inorganic heat insulation materials have the advantages of high flame retardance and long service life, but the defects of large dead weight and poor heat insulation efficiency cannot meet the heat insulation requirements and energy-saving standards of the existing buildings.
Therefore, organic heat insulating materials are gradually favored. The common organic heat insulation materials mainly comprise molded polystyrene boards, extruded polystyrene boards, polyurethane and the like. However, the organic thermal insulation material has the fatal defect of flammability, and more fatal, the polyurethane material can release a large amount of smoke and toxic gas in the combustion process. These fatal defects severely restrict the further application of the organic heat-insulating material in engineering.
Therefore, the current building insulation materials are dilemma in selection. With the rapid development of the building industry, aerogel, a novel building thermal insulation material, is known by people. The aerogel material is a porous material which is composed of nano particles or polymer molecular chains and has a three-dimensional nano structure, has the structural characteristics of low density, high porosity, high pore volume, high specific surface area and the like, and is a novel heat-insulating material integrating heat-insulating property and fireproof property. However, this material is brittle and expensive, and therefore has not been applied to a large area in the field of construction engineering.
From the above analysis, it is urgent to develop a heat insulating material with light weight, good heat insulating effect, good flame retardancy, low cost, low energy consumption and good toughness.
Disclosure of Invention
The invention aims to solve the technical problems of development of a light-weight, good heat-insulating effect, good flame retardance, low cost, low energy consumption and good toughness heat-insulating material in the background art, and provides a capsule type composite heat-insulating material and a preparation method thereof. Compared with a single aerogel thermal insulation material, the aerogel thermal insulation material successfully overcomes the defect of high cost.
The invention provides a capsule type composite thermal insulation material, which comprises microcapsules, ultralight solid waste modified foamed cement slurry and chopped fibers, wherein the ultralight solid waste modified foamed cement slurry is mixed with the microcapsules and the chopped fibers, and comprises cement, carbide slag, coal gangue powder, water, a water reducing agent, a foaming agent, a foam stabilizer and an early strength agent;
the microcapsule comprises a microcapsule wall and a microcapsule core material, wherein the microcapsule wall is made of inorganic materials or high molecular materials, and the microcapsule core material is made of aerogel materials.
Preferably, the cementing material of the ultralight solid waste modified foamed cement slurry consists of cement, carbide slag and gangue powder, and the mass ratio of the cementing material to the gangue powder is as follows: carbide slag: coal gangue powder is 8.0:3.5: 6.5; the water-to-glue ratio is 0.45; the foaming agent adopts hydrogen peroxide (H)2O2) The mixing amount is 8 percent of the mass of the cementing material; the foam stabilizer adopts calcium stearate, and the mixing amount of the foam stabilizer is 1.7 percent of the mass of the cementing material; the mixing amount of the water reducing agent is 0.3 percent of the mass of the cementing material; the mixing amount of the early strength agent is 5 percent of the cementing material.
Preferably, the chopped fibers are one of glass fibers, carbon fibers, basalt fibers or steel fibers, and the fiber content is 0.25% of the mass of the cementing material.
Preferably, the size of the microcapsule is 5 to 200 μm.
The capsule type composite thermal insulation material specifically comprises the following steps:
(1) firstly, preparing microcapsules;
(2) preparing ultralight solid waste modified foaming cement slurry, and doping short fibers into the slurry in the stirring process;
(3) uniformly mixing the prepared microcapsules into the slurry, and stirring;
(4) pouring the prepared capsule type composite heat-insulating material into a mould;
(5) and curing and molding the demolded heat insulation board.
The capsule type composite heat-insulating material comprises a slurry layer and a capsule layer, wherein the slurry layer and the capsule layer are alternately arranged, the slurry layer comprises ultralight solid waste modified foamed cement slurry and chopped fibers, the chopped fibers are mixed into the ultralight solid waste modified foamed cement slurry to be integrally formed, and the capsule layer comprises a plurality of capsule particles arranged in rows;
the ultra-light solid waste modified foaming cement slurry comprises cement, carbide slag, coal gangue powder, water, a water reducing agent, a foaming agent, a foam stabilizer and an early strength agent;
the capsule particles comprise a capsule wall and a capsule core material, wherein the capsule wall is a PE high-temperature-resistant transparent shell, the capsule core material is an aerogel material, and the capsule wall is a sphere.
Preferably, the cementing material of the ultralight solid waste modified foamed cement slurry consists of cement, carbide slag and gangue powder, and the mass ratio of the cementing material to the gangue powder is as follows: carbide slag: coal gangue powder is 8.0:3.5: 6.5; the water-to-glue ratio is 0.45; the foaming agent adopts hydrogen peroxide (H)2O2) The mixing amount is 8 percent of the mass of the cementing material; the foam stabilizer adopts calcium stearate, and the mixing amount of the foam stabilizer is 1.7 percent of the mass of the cementing material; the mixing amount of the water reducing agent is 0.3 percent of the mass of the cementing material; the mixing amount of the early strength agent is 5 percent of the cementing material.
Preferably, the diameter of the capsule wall is 0.8-1.0 cm, and the diameter of the capsule core material is 0.3-0.5 cm.
Preferably, the aerogel material is one of silica aerogel, alumina aerogel, zirconia aerogel or carbon aerogel.
The capsule type composite thermal insulation material specifically comprises the following steps:
(1) preparing an aerogel material and a PE high-temperature-resistant transparent shell;
(2) implanting the prepared aerogel into a PE high-temperature-resistant transparent shell, and then sealing to form capsule particles;
(3) preparing ultralight solid waste modified foaming cement slurry, and doping short fibers into the slurry in the stirring process;
(4) pouring the stirred slurry into a mould twice, and pouring 1/2 with the height not exceeding the height of the mould for the first time to form a slurry layer;
(5) spreading the prepared capsule layer on the slurry;
(6) then carrying out secondary slurry injection molding;
(7) and (5) after demolding, maintaining and molding the heat insulation plate.
The capsule type composite thermal insulation material and the preparation method thereof have the beneficial effects that:
1. according to the invention, the aerogel is doped into the ultralight solid waste modified foaming cement slurry in a form of taking the capsule as a carrier, so that the heat insulation performance of the ultralight solid waste modified foaming cement heat insulation material can be effectively improved.
2. In addition, the method can not only effectively protect the aerogel, but also reduce the cost of the whole thermal insulation material.
3. The invention adopts the carbide slag and the coal gangue powder to replace part of cement in the foamed cement heat-insulating material, thereby not only reducing the cost of the foamed cement heat-insulating material, but also solving the problems of large stacking amount of solid wastes, serious environmental pollution and large treatment difficulty. The heat insulation material developed by the invention has the advantages of light weight, good heat insulation effect, good flame retardance, low cost, low energy consumption, good toughness and the like.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic diagram of a capsule composite thermal insulation material according to the embodiment of the present invention;
FIG. 2 is a schematic view of a capsule according to the present invention;
FIG. 3 is a schematic diagram of a two-capsule composite thermal insulation material according to the embodiment of the present invention;
FIG. 4 is a schematic view of a second capsule according to the embodiment of the present invention;
wherein, 1-microcapsule; 2-chopped fibers; 3-a slurry layer; 4-capsule layer; 5-microcapsule wall; 6-microcapsule core material; 7-capsule wall; 8-capsule core material.
Detailed Description
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:
the invention provides a capsule type composite heat-insulating material, which can be divided into two types according to different capsule wall material components, and the corresponding preparation processes are a first specific implementation mode and a second specific implementation mode.
The first embodiment is as follows: the present embodiment is explained with reference to fig. 1-2. The capsule composite thermal insulation material of the embodiment comprises microcapsules 1, ultralight solid waste modified foamed cement slurry and chopped fibers 2, wherein the microcapsules 1 and the chopped fibers 2 are mixed in the ultralight solid waste modified foamed cement slurry, the ultralight solid waste modified foamed cement slurry comprises carbide slag, coal gangue powder fine powder, cement, water, a water reducing agent, a foaming agent, a foam stabilizer and an early strength agent,
the microcapsule 1 comprises a microcapsule wall 5 and a microcapsule core material 6, wherein the microcapsule wall 5 is made of inorganic materials or high molecular materials, and the microcapsule core material 6 is made of aerogel materials.
The cementing material of the ultralight solid waste modified foaming cement slurry consists of cement, carbide slag and coal gangue powder, and the mass ratio of the cementing material to the coal gangue powder is as follows: carbide slag: coal gangue powder is 8.0:3.5: 6.5; the water-to-glue ratio is 0.45; the foaming agent adopts hydrogen peroxide (H)2O2) The mixing amount is 8 percent of the mass of the cementing material; the foam stabilizer adopts calcium stearate, and the mixing amount of the foam stabilizer is 1.7 percent of the mass of the cementing material; the mixing amount of the water reducing agent is 0.3 percent of the mass of the cementing material; the mixing amount of the early strength agent is 5 percent of the cementing material.
The main function of the carbide slag is to excite the activity of the coal gangue powder and accelerate the hydration reaction of the slurry, thereby improving the early strength of the slurry.
The foaming agent adopts hydrogen peroxide (H)2O2)。
The chopped fibers 2 have the main functions of preventing cracking, enhancing the overall toughness of the heat-insulating material and improving the bending resistance and the seismic resistance of the heat-insulating material. The chopped fiber 2 can be one of glass fiber, carbon fiber, basalt fiber, steel fiber and the like, and the fiber content is 0.25 percent of the mass of the cementing material.
The main functions of the microcapsule wall 5 include two aspects: one aspect is to act as a carrier to uniformly mix the aerogel material into the slurry, and the second aspect is to protect the aerogel material. Aerogel materials can be silica aerogel, alumina aerogel, zirconia aerogel, carbon aerogel, and the like.
The capsule type composite thermal insulation material specifically comprises the following steps:
(1) firstly, preparing the microcapsule 1;
(2) preparing ultralight solid waste modified foaming cement slurry, and doping the chopped fibers 2 into the slurry in the stirring process;
(3) uniformly mixing the prepared microcapsule 1 into the slurry, and stirring;
(4) pouring the prepared capsule type composite heat-insulating material into a mould;
(5) and curing and molding the demolded heat insulation board.
The second embodiment is as follows: this embodiment is explained with reference to fig. 3 to 4. The capsule composite thermal insulation material of the embodiment comprises a slurry layer 3 and a capsule layer 4, wherein the slurry layer 3 and the capsule layer 4 are alternately arranged, the slurry layer 3 comprises ultralight solid waste modified foamed cement slurry and chopped fibers, the chopped fibers are mixed with the ultralight solid waste modified foamed cement slurry to be integrally formed, and the capsule layer 4 comprises a plurality of capsule particles arranged in rows;
the ultra-light solid waste modified foaming cement slurry comprises carbide slag, coal gangue powder, cement, water, a water reducing agent, a foaming agent, a foam stabilizer and an early strength agent.
The cementing material of the ultralight solid waste modified foaming cement slurry consists of cement, carbide slag and coal gangue powder, and the mass ratio of the cementing material to the coal gangue powder is as follows: carbide slag: coal gangue powder is 8.0:3.5: 6.5; the water-to-glue ratio is 0.45; the foaming agent is H2O2, and the mixing amount is 8% of the mass of the cementing material; the foam stabilizer adopts calcium stearate, and the mixing amount of the foam stabilizer is 1.7 percent of the mass of the cementing material; the mixing amount of the water reducing agent is 0.3 percent of the mass of the cementing material; the mixing amount of the early strength agent is 5 percent of the cementing material.
The capsule particles comprise a capsule wall 7 and a capsule core material 8, wherein the capsule wall 7 is a PE high-temperature-resistant transparent shell, the capsule core material 8 is an aerogel material, and the capsule wall is a sphere. The manner in which the plies are used herein includes two main reasons: (1) the capsule particles can be well protected by adopting a layering mode, so that the capsule particles are prevented from being damaged in different degrees in the stirring process. (2) The aerogel material has high cost, so that the cost of the heat-insulating material is greatly increased, and the cost of the heat-insulating material can be reduced by adopting a layer laying mode under the condition of ensuring the performance of the heat-insulating material.
The diameter of the capsule wall 7 is 0.8-1.0 cm, and the diameter of the capsule core material 8 is 0.3-0.5 cm. The capsule wall is a sphere, and the main functions of the capsule wall comprise two aspects, namely, on one hand, the aerogel material is protected; in the second aspect, the material is added to enhance the overall heat insulation performance, and the principle is as follows: 1. the capsule wall is embedded into the PE high-temperature-resistant transparent shell as a core material, and the aerogel has a lower heat conductivity coefficient than air, so that when heat passes through the aerogel material, the diffusion speed of the heat can be effectively reduced, and the heat preservation effect of the material is improved. 2. Because the inside of the PE high-temperature-resistant transparent shell is static air, if heat is transferred through the surface of the aerogel, the heat transfer path is increased, and the effect of reducing the heat diffusion speed can also be achieved.
The aerogel material is one of silicon dioxide aerogel, alumina aerogel, zirconia aerogel or carbon aerogel.
The ultra-light solid waste modified foaming cement slurry comprises cement, carbide slag, coal gangue powder, water, a water reducing agent, a foaming agent, a foam stabilizer and an early strength agent. The main function of the carbide slag is to excite the activity of the coal gangue powder and accelerate the hydration reaction of the slurry, thereby improving the early strength of the slurry. The foaming agent is hydrogen peroxide (H)2O2). The chopped fibers have the main functions of preventing cracking, enhancing the overall toughness of the heat-insulating material and improving the bending resistance and the seismic resistance of the heat-insulating material. The chopped fiber may be one of glass fiber, carbon fiber, basalt fiber, steel fiber, and the like.
The capsule type composite thermal insulation material specifically comprises the following steps:
(1) preparing an aerogel material and a PE high-temperature-resistant transparent shell;
(2) implanting the prepared aerogel into a PE high-temperature-resistant transparent shell, and then sealing to form capsule particles;
(3) preparing ultralight solid waste modified foaming cement slurry, and doping short fibers into the slurry in the stirring process;
(4) pouring the stirred slurry into a mould twice, and pouring 1/2 with the height not exceeding the height of the mould for the first time;
(5) spreading the prepared capsule on the slurry;
(6) then carrying out secondary slurry injection molding;
(7) and (5) after demolding, maintaining and molding the heat insulation plate.
The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail. It should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the present invention, and that the reasonable combination of the features described in the above-mentioned embodiments can be made, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The capsule type composite heat-insulating material is characterized by comprising microcapsules (1), ultralight solid waste modified foamed cement slurry and chopped fibers (2), wherein the microcapsules (1) and the chopped fibers (2) are mixed in the ultralight solid waste modified foamed cement slurry, and the ultralight solid waste modified foamed cement slurry comprises cement, carbide slag, coal gangue powder, water, a water reducing agent, a foaming agent, a foam stabilizer and an early strength agent;
the microcapsule comprises a microcapsule wall (5) and a microcapsule core material (6), wherein the microcapsule wall (5) is made of inorganic materials or high molecular materials, and the microcapsule core material (6) is made of aerogel materials.
2. According to claimThe capsule type composite thermal insulation material is characterized in that the cementing material of the ultralight solid waste modified foaming cement slurry is composed of cement, carbide slag and coal gangue powder, and the mass ratio of the cementing material to the coal gangue powder is as follows: carbide slag: coal gangue powder is 8.0:3.5: 6.5; the water-to-glue ratio is 0.45; the foaming agent adopts H2O2The mixing amount is 8 percent of the mass of the cementing material; the foam stabilizer adopts calcium stearate, and the mixing amount of the foam stabilizer is 1.7 percent of the mass of the cementing material; the mixing amount of the water reducing agent is 0.3 percent of the mass of the cementing material; the mixing amount of the early strength agent is 5 percent of the cementing material.
3. The capsule type composite thermal insulation material according to claim 1, wherein the chopped fiber (2) is one of glass fiber, carbon fiber, basalt fiber or steel fiber, and the fiber content is 0.25% of the mass of the gel material.
4. The capsule composite thermal insulation material according to claim 1, wherein the size of the microcapsule (1) is 5 to 200 μm.
5. The capsule composite thermal insulation material according to any one of claims 1 to 4, comprising the following steps:
(1) firstly, preparing the microcapsule (1);
(2) preparing the ultralight solid waste modified foaming cement slurry, and mixing the chopped fibers (2) into the slurry in the stirring process;
(3) uniformly mixing the prepared microcapsules (1) into the slurry, and stirring;
(4) pouring the prepared capsule type composite heat-insulating material into a mould;
(5) and curing and molding the demolded heat insulation board.
6. The capsule type composite heat-insulating material is characterized by comprising a slurry layer (3) and a capsule layer (4), wherein the slurry layer (3) and the capsule layer (4) are alternately arranged, the slurry layer (3) comprises ultralight solid waste modified foamed cement slurry and chopped fibers (2), the ultralight solid waste modified foamed cement slurry is mixed into the chopped fibers (2) to be integrally formed, and the capsule layer (4) comprises a plurality of rows of capsule particles;
the ultra-light solid waste modified foaming cement slurry comprises cement, carbide slag, coal gangue powder, water, a water reducing agent, a foaming agent, a foam stabilizer and an early strength agent;
the capsule particles comprise a capsule wall (7) and a capsule core material (8), wherein the capsule wall (7) is a PE high-temperature-resistant transparent shell, the capsule core material (8) is an aerogel material, and the capsule wall (7) is a sphere.
7. The capsule type composite thermal insulation material of claim 6, wherein the cementing material of the ultra-light solid waste modified foaming cement slurry is composed of cement, carbide slag and gangue powder, and the mass ratio of the cementing material to the carbide slag is as follows: carbide slag: coal gangue powder is 8.0:3.5: 6.5; the water-to-glue ratio is 0.45; the foaming agent adopts H2O2The mixing amount is 8 percent of the mass of the cementing material; the foam stabilizer adopts calcium stearate, and the mixing amount of the foam stabilizer is 1.7 percent of the mass of the cementing material; the mixing amount of the water reducing agent is 0.3 percent of the mass of the cementing material; the mixing amount of the early strength agent is 5 percent of the cementing material.
8. The capsule composite thermal insulation material according to claim 6, wherein the capsule wall (7) has a diameter of 0.8 to 1.0cm, and the capsule core (8) has a diameter of 0.3 to 0.5 cm.
9. The capsule composite insulation of claim 6, wherein the aerogel material is one of silica aerogel, alumina aerogel, zirconia aerogel or carbon aerogel.
10. The capsule composite thermal insulation material according to any one of claims 6 to 9, comprising the following steps:
(1) preparing an aerogel material and a PE high-temperature-resistant transparent shell;
(2) implanting the prepared aerogel into a PE high-temperature-resistant transparent shell, and then sealing to form capsule particles;
(3) preparing the ultralight solid waste modified foaming cement slurry, and mixing the chopped fibers (2) into the slurry in the stirring process;
(4) pouring the stirred slurry into a mould twice, and pouring 1/2 with the height not exceeding the height of the mould for the first time to form a slurry layer (3);
(5) spreading the prepared capsule layer (4) on the slurry;
(6) then carrying out secondary slurry injection molding;
(7) and (5) after demolding, maintaining and molding the heat insulation plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110456365.5A CN113200762A (en) | 2021-04-26 | 2021-04-26 | Capsule type composite thermal insulation material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110456365.5A CN113200762A (en) | 2021-04-26 | 2021-04-26 | Capsule type composite thermal insulation material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113200762A true CN113200762A (en) | 2021-08-03 |
Family
ID=77028833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110456365.5A Pending CN113200762A (en) | 2021-04-26 | 2021-04-26 | Capsule type composite thermal insulation material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113200762A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05146670A (en) * | 1991-12-02 | 1993-06-15 | Ngk Spark Plug Co Ltd | Capsule material, production thereof and shaped body consisting of the capsule material |
| CN101182175A (en) * | 2007-11-22 | 2008-05-21 | 重庆大学 | Coal gangue-fly ash foam concrete |
| WO2008148262A1 (en) * | 2007-06-08 | 2008-12-11 | Qihong Lin | A process for producing gm-siding |
| CN103086661A (en) * | 2011-10-27 | 2013-05-08 | 深圳市爱思宝科技发展有限公司 | Thermal insulation and heat preservation slurry composition and thermal insulation and heat preservation plate containing the same |
| CN105297943A (en) * | 2014-07-29 | 2016-02-03 | 金承黎 | Load-bearing heat-insulating decorating integrated assembled wall composited with aerogel and manufacturing method |
| CN105837100A (en) * | 2016-03-25 | 2016-08-10 | 江西中科新建材有限公司 | Preparation method of foamed cement heat insulation board modified by micro silicon dioxide aerogel |
| CN108101478A (en) * | 2018-01-05 | 2018-06-01 | 庞龙雨 | A kind of composite micro-capsule heat insulating mortar and preparation method thereof |
| CN109231910A (en) * | 2018-08-31 | 2019-01-18 | 广州大学 | A kind of fiber aerogel foam concrete and its preparation method and application |
| CN110803907A (en) * | 2019-11-26 | 2020-02-18 | 鑫创新材料科技(徐州)有限公司 | Manufacturing method and application of aerogel composite building material |
| CN111549973A (en) * | 2020-06-05 | 2020-08-18 | 中土大地国际建筑设计有限公司 | High-efficient heated board for building |
-
2021
- 2021-04-26 CN CN202110456365.5A patent/CN113200762A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05146670A (en) * | 1991-12-02 | 1993-06-15 | Ngk Spark Plug Co Ltd | Capsule material, production thereof and shaped body consisting of the capsule material |
| WO2008148262A1 (en) * | 2007-06-08 | 2008-12-11 | Qihong Lin | A process for producing gm-siding |
| CN101182175A (en) * | 2007-11-22 | 2008-05-21 | 重庆大学 | Coal gangue-fly ash foam concrete |
| CN103086661A (en) * | 2011-10-27 | 2013-05-08 | 深圳市爱思宝科技发展有限公司 | Thermal insulation and heat preservation slurry composition and thermal insulation and heat preservation plate containing the same |
| CN105297943A (en) * | 2014-07-29 | 2016-02-03 | 金承黎 | Load-bearing heat-insulating decorating integrated assembled wall composited with aerogel and manufacturing method |
| CN105837100A (en) * | 2016-03-25 | 2016-08-10 | 江西中科新建材有限公司 | Preparation method of foamed cement heat insulation board modified by micro silicon dioxide aerogel |
| CN108101478A (en) * | 2018-01-05 | 2018-06-01 | 庞龙雨 | A kind of composite micro-capsule heat insulating mortar and preparation method thereof |
| CN109231910A (en) * | 2018-08-31 | 2019-01-18 | 广州大学 | A kind of fiber aerogel foam concrete and its preparation method and application |
| CN110803907A (en) * | 2019-11-26 | 2020-02-18 | 鑫创新材料科技(徐州)有限公司 | Manufacturing method and application of aerogel composite building material |
| CN111549973A (en) * | 2020-06-05 | 2020-08-18 | 中土大地国际建筑设计有限公司 | High-efficient heated board for building |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Shao et al. | Fabrication of hollow microspheres filled fly ash based foam geopolymers with ultra-low thermal conductivity and relative high strength | |
| US9840440B2 (en) | Hydrophobic low shrinkage lightweight cementitious matrix | |
| CN112194400B (en) | Core-shell structure lightweight aggregate prepared by cold bonding method and preparation method thereof | |
| CN101357828B (en) | Method for preparing lightweight aggregate and inorganic insulation using product thereon as main insulation source | |
| CN111099866B (en) | Thermal insulation building block prepared from plant fiber modified waste soil and preparation method thereof | |
| AU2020100765A4 (en) | Method for preparing temperature-controlling and energy-saving thermal insulation material by using waste concrete | |
| CN113651573B (en) | Building floor heat-preservation sound-insulation board and processing method thereof | |
| CN112341083A (en) | Preparation process of oil bleeding type anti-seepage building insulation board | |
| US20230295047A1 (en) | Magnesium-based fly ash porous sound-absorbing material with surface hydrophobically modified and preparation method thereof | |
| CN102535731A (en) | Building waste composite self thermal insulation building block | |
| CN112062515B (en) | High-strength geopolymer closed-cell foam material prepared from silicon carbide and preparation method thereof | |
| CN105693186A (en) | Environment-friendly and energy-saving cement foaming heat insulation board | |
| CN113200762A (en) | Capsule type composite thermal insulation material and preparation method thereof | |
| CN114014694A (en) | Hydrophobic heat-preservation foam concrete prefabricated part and preparation method thereof | |
| CN202787636U (en) | Foam concrete composite steel slag insulation bearing building block | |
| CN113072333A (en) | Preparation process of high-strength closed heat-insulation concrete block | |
| CN111825414A (en) | High-temperature-resistant green multi-layer fireproof plate and manufacturing method thereof | |
| CN111851870A (en) | Building roof waterproof and heat insulation integrated super-hydrophobic particle, and preparation method and application thereof | |
| CN114436584B (en) | Inorganic modified graphite polystyrene non-combustible insulation board and preparation method thereof | |
| CN115159943A (en) | Fireproof light heat-insulating material and preparation method and application thereof | |
| CN106085366B (en) | Phase-change material, light phase-change honeycomb concrete plate and preparation method thereof | |
| CN113800801A (en) | Ceramic fiber particle and preparation method and application thereof | |
| CN102400531A (en) | Low-carbon fireproof thermal insulation decoration board with vacuum vesicle structure and preparation method for board | |
| CN111677150A (en) | MU five-point zero-ceramsite composite self-insulation building block | |
| CN115368068B (en) | Preparation method of efflorescence-resistant incineration waste bottom ash geopolymer solid brick and solid brick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210803 |
|
| RJ01 | Rejection of invention patent application after publication |