CN114215207A - Sandwich type cement-based insulation board and preparation method thereof - Google Patents
Sandwich type cement-based insulation board and preparation method thereof Download PDFInfo
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- CN114215207A CN114215207A CN202111672359.XA CN202111672359A CN114215207A CN 114215207 A CN114215207 A CN 114215207A CN 202111672359 A CN202111672359 A CN 202111672359A CN 114215207 A CN114215207 A CN 114215207A
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- 239000004568 cement Substances 0.000 title claims abstract description 50
- 238000009413 insulation Methods 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000010410 layer Substances 0.000 claims abstract description 72
- 239000012792 core layer Substances 0.000 claims abstract description 47
- 239000002245 particle Substances 0.000 claims abstract description 34
- 239000010451 perlite Substances 0.000 claims abstract description 33
- 235000019362 perlite Nutrition 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000011398 Portland cement Substances 0.000 claims abstract description 32
- 239000004088 foaming agent Substances 0.000 claims abstract description 31
- 239000002994 raw material Substances 0.000 claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 21
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 11
- 229920006327 polystyrene foam Polymers 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 11
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 11
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 238000004078 waterproofing Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 27
- 239000004744 fabric Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- 239000004745 nonwoven fabric Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 239000002131 composite material Substances 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 5
- 239000003292 glue Substances 0.000 abstract description 5
- 239000011810 insulating material Substances 0.000 abstract description 3
- 239000012774 insulation material Substances 0.000 abstract description 3
- 229920000297 Rayon Polymers 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland 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
- 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
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Laminated Bodies (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a sandwich type cement-based insulation board and a preparation method thereof, and belongs to the technical field of insulation materials. It includes: the sandwich core layer, and the sandwich top layer and the sandwich bottom layer which are respectively arranged at two sides of the sandwich core layer; the sandwich core layer is mainly prepared from the following raw materials in percentage by volume density per cubic meter: polystyrene foam particles of 7-14 kg/m317-23 kg/m of light perlite324-35 kg/m sodium silicate rubber powder335 to 47kg/m of Portland cement31-3 kg/m of powdery inorganic foaming agent31 to 5kg/m of powdery inorganic waterproofing agent34-14 kg/m of water3. The invention changes the single process of producing the heat-insulating material into the same one-time production of the sandwich-type structure heat-insulating board, so that the product not only omits the secondary viscose glue composite process, but also naturally compounds the heat-insulating sandwich layer into a whole by the self cohesive force of the cement and the inorganic glue in the wet operation process during production, thereby improving the product quality and reducing the product cost.
Description
Technical Field
The invention relates to the technical field of heat insulation materials, in particular to a sandwich type cement-based heat insulation board and a preparation method thereof.
Background
The development of the green building industry in China is advanced with time and keeps pace with the advancing step of the times. The effective establishment of the modern public green environmental protection concept prompts more people to pay attention to the building heat preservation performance, so that building enterprises want to improve the building heating capacity and ensure that the energy consumption can be reduced at the same time, high-quality heat preservation materials need to be arranged and applied in the prefabricated building in a combined manner, and the prefabricated building has the advantages of low resource consumption and environmental protection.
The building heat-insulating and decorating integrated plate becomes an important industry of the building industry, and relevant policies and industry standards of the building department and government departments at all places are greatly supported by the building department. Regarding relevant standard contents and product structure processes of manufacturers in various places, the heat-insulation and decoration integrated plate consists of a heat-insulation layer, an inorganic resin plate, a strong composite adhesive and a facing coating. The thermal insulation material can be designed into XPS (extruded sheet), EPS (polystyrene board), PUR (polyurethane board), phenolic board, rock wool board and ultrathin thermal insulation board. Because the heat-insulating and decorating integrated plate is mostly formed by compounding the heat-insulating material, the decorating surface material and the reinforcing plate through a compound adhesive bonding process, the compound adhesive serving as a bonding medium has the problem of ageing inevitably, the bonding performance is attenuated, the compound adhesive has ineffective action, and the quality safety hidden trouble exists in long-term use. In addition, 1-3 composite glue bonding process flows are needed in the production process, processing steps are added, processing time is prolonged, and production cost is increased.
Disclosure of Invention
The invention aims to provide a sandwich type cement-based insulation board and a preparation method thereof, and aims to solve the problems that an existing building insulation and decoration integrated board is aged and invalid through composite glue adhesion, potential safety hazards exist, processing steps are increased, processing time is prolonged, and production cost is increased.
The technical scheme for solving the technical problems is as follows:
a sandwich cement-based insulation board comprising: the sandwich core layer, and the sandwich top layer and the sandwich bottom layer which are respectively arranged at two sides of the sandwich core layer;
the sandwich core layer is mainly prepared from the following raw materials in percentage by volume density per cubic meter: polystyrene foam particles of 7-14 kg/m317-23 kg/m of light perlite324-35 kg/m sodium silicate rubber powder335 to 47kg/m of Portland cement31-3 kg/m of powdery inorganic foaming agent31 to 5kg/m of powdery inorganic waterproofing agent34-14 kg/m of water3。
In the invention, the diameter of the polyphenyl foaming particles is 1.5 mm-2.0 mm; the particle diameter of the light perlite is 1.5 mm-2.0 mm.
Further, in the sandwich type cement-based insulation board, the temperature of the water is 45-55 ℃.
Further, in the sandwich type cement-based insulation board, the density of the sandwich core layer is 85-120 kg/m3。
Further, in the sandwich cement-based insulation board, the sandwich top layer is mainly made of the following raw materials, and the sandwich top layer comprises the following components in terms of volume density per cubic meter: 180-220 kg/m Portland cement365-90 kg/m of light perlite particles31 to 4kg/m of an inorganic foaming agent31 to 5kg/m of an inorganic water-proofing agent30.5 to 2kg/m of nonwoven fabric315-20 kg/m of water3。
In the invention, the particle diameter of the light perlite is 1.5 mm-2.0 mm.
Further, in the sandwich type cement-based heat insulation board, the density of the sandwich top layer is 280-340 kg/m3。
Further, in the sandwich type cement-based insulation board, the sandwich bottom layer is mainly made of the following raw materials by volume density per cubic meter: 600-750 kg/m of Portland cement3And the light perlite particles are 80-120 kg/m3150-200 kg/m alkali-free mesh fabric31 to 3kg/m of an inorganic foaming agent33 to 8kg/m of cement-based cloth315-20 kg/m of water3。
Further, in the sandwich type cement-based insulation board, the density of the sandwich bottom layer is 700-1200 kg/m3。
The invention also provides a preparation method of the sandwich type cement-based insulation board, which comprises the following steps:
raw materials of the sandwich bottom layer are as follows: mixing and stirring the Portland cement, the light perlite particles, the alkali-free mesh cloth, the inorganic foaming agent, the cement-based cloth and water uniformly to obtain a bottom-layer mixture;
raw materials of the sandwich core layer are as follows: the polystyrene foam particles, the light perlite, the sodium silicate rubber powder, the portland cement, the powdery inorganic foaming agent, the powdery inorganic waterproof agent and the water are mixed and stirred uniformly to obtain a core layer mixture;
raw materials of the sandwich top layer are as follows: mixing and stirring Portland cement, light perlite particles, an inorganic foaming agent, an inorganic waterproof agent, non-woven fabric and water uniformly to obtain a top-layer mixture;
the sandwich type cement-based insulation board is characterized in that the sandwich type cement-based insulation board is obtained by preparing the bottom layer mixture into the sandwich bottom layer after injecting materials, leveling and drying, preparing the sandwich core layer above the sandwich bottom layer by injecting the core layer mixture into the sandwich layer mixture and preparing the sandwich top layer above the sandwich core layer after leveling and drying.
The invention has the following beneficial effects:
the invention changes the single process of producing the heat-insulating material into the same one-time production of the sandwich-type structure heat-insulating board, so that the product not only omits the secondary viscose glue composite process, but also naturally compounds the heat-insulating sandwich layer into a whole by the self cohesive force of the cement and the inorganic glue in the wet operation process during production, thereby improving the product quality and reducing the product cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of the sandwich type cement-based insulation board of the invention.
Detailed Description
The principles and features of the present invention are described below in conjunction with the embodiments and the accompanying drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
As shown in fig. 1, the sandwich type cement-based insulation board of the present invention comprises: the sandwich core layer 1, and the sandwich top layer 2 and the sandwich bottom layer 3 which are respectively arranged at two sides of the sandwich core layer 1.
Portland cement type 425 is used in the following examples of the invention.
Example 1:
the sandwich cement-based insulation board of the embodiment comprises: a sandwich core layer, and a sandwich top layer and a sandwich bottom layer respectively arranged on the sandwich core layer, wherein the density of the sandwich core layer is 85kg/m3The density of the sandwich top layer is 280kg/m3The density of the sandwich bottom layer is 700kg/m3。
The sandwich core layer is mainly prepared from the following raw materials in percentage by volume density per cubic meter: polystyrene foam particle 7kg/m317kg/m of light perlite324kg/m sodium silicate rubber powder3Portland cement 35kg/m31kg/m of powdery inorganic foaming agent31kg/m of powdery inorganic water-proofing agent3And water at 45 ℃ of 4kg/m3。
The sandwich top layer is mainly prepared from the following raw materials in terms of volume density per cubic meter: portland cement 180kg/m365kg/m of light perlite particles31kg/m of inorganic foaming agent31kg/m of inorganic water-proofing agent30.5kg/m nonwoven fabric3And water 15kg/m3。
The sandwich bottom layer is mainly prepared from the following raw materials in terms of volume density per cubic meter: portland cement 600kg/m3Light perlite particles 80kg/m3150kg/m alkali-free mesh fabric31kg/m of inorganic foaming agent33kg/m of cement-based cloth3And water 15kg/m3。
The preparation method of the sandwich type cement-based insulation board comprises the following steps:
raw materials of a sandwich bottom layer: mixing and stirring the Portland cement, the light perlite particles, the alkali-free mesh cloth, the inorganic foaming agent, the cement-based cloth and water uniformly to obtain a bottom-layer mixture;
raw materials of the sandwich core layer: the polystyrene foam particles, the light perlite, the sodium silicate rubber powder, the portland cement, the powdery inorganic foaming agent, the powdery inorganic waterproof agent and the water are mixed and stirred uniformly to obtain a core layer mixture;
raw materials of the sandwich top layer are as follows: mixing and stirring Portland cement, light perlite particles, an inorganic foaming agent, an inorganic waterproof agent, non-woven fabric and water uniformly to obtain a top-layer mixture;
and injecting a core layer mixture above the sandwich core layer, leveling and drying to prepare a sandwich top layer, and thus obtaining the sandwich type cement-based insulation board.
Example 2:
the sandwich cement-based insulation board of the embodiment comprises: a sandwich core layer, and a sandwich top layer and a sandwich bottom layer respectively arranged on the sandwich core layer, wherein the density of the sandwich core layer is 100kg/m3The density of the sandwich top layer is 300kg/m3The density of the sandwich bottom layer is 950kg/m3。
The sandwich core layer is mainly prepared from the following raw materials in percentage by volume density per cubic meter: polystyrene foam particle 11kg/m320kg/m of light perlite330kg/m sodium silicate rubber powder3Portland cement 40kg/m32kg/m of powdery inorganic foaming agent33kg/m of powdery inorganic waterproof agent3And water at 50 ℃ of 10kg/m3。
The sandwich top layer is mainly prepared from the following raw materials in terms of volume density per cubic meter:portland cement 200kg/m3Light perlite particles 80kg/m32kg/m of an inorganic foaming agent33kg/m of inorganic water-proofing agent31kg/m of nonwoven fabric3And water 20kg/m3。
The sandwich bottom layer is mainly prepared from the following raw materials in terms of volume density per cubic meter: portland cement 700kg/m3Light perlite particles 100kg/m3200kg/m of alkali-free mesh fabric32kg/m of an inorganic foaming agent35kg/m of cement-based cloth3And water 20kg/m3。
The preparation method of the sandwich type cement-based insulation board comprises the following steps:
raw materials of a sandwich bottom layer: mixing and stirring the Portland cement, the light perlite particles, the alkali-free mesh cloth, the inorganic foaming agent, the cement-based cloth and water uniformly to obtain a bottom-layer mixture;
raw materials of the sandwich core layer: the polystyrene foam particles, the light perlite, the sodium silicate rubber powder, the portland cement, the powdery inorganic foaming agent, the powdery inorganic waterproof agent and the water are mixed and stirred uniformly to obtain a core layer mixture;
raw materials of the sandwich top layer are as follows: mixing and stirring Portland cement, light perlite particles, an inorganic foaming agent, an inorganic waterproof agent, non-woven fabric and water uniformly to obtain a top-layer mixture;
and injecting a core layer mixture above the sandwich core layer, leveling and drying to prepare a sandwich top layer, and thus obtaining the sandwich type cement-based insulation board.
Example 3:
the sandwich cement-based insulation board of the embodiment comprises: a sandwich core layer, and a sandwich top layer and a sandwich bottom layer respectively arranged on the sandwich core layer, wherein the density of the sandwich core layer is 120kg/m3The density of the sandwich top layer is 340kg/m3The density of the sandwich base layer was 1200kg/m3。
Wherein the sandwich core layer is mainly prepared from the following raw materialsThe composition comprises the following components in terms of volume density per cubic meter: polystyrene foam particle 14kg/m323kg/m of light perlite335kg/m sodium silicate powder347kg/m Portland cement33kg/m of powdery inorganic foaming agent35kg/m of powdery inorganic waterproofing agent3And water at 55 ℃ of 14kg/m3。
The sandwich top layer is mainly prepared from the following raw materials in terms of volume density per cubic meter: portland cement 220kg/m3Light perlite particles 90kg/m3Inorganic foaming agent 4kg/m35kg/m of inorganic water-proofing agent32kg/m of nonwoven fabric3And water 20kg/m3。
The sandwich bottom layer is mainly prepared from the following raw materials in terms of volume density per cubic meter: portland cement 750kg/m3120kg/m of light perlite particles3200kg/m of alkali-free mesh fabric33kg/m of inorganic foaming agent38kg/m cement base cloth3And water 20kg/m3。
The preparation method of the sandwich type cement-based insulation board comprises the following steps:
raw materials of a sandwich bottom layer: mixing and stirring the Portland cement, the light perlite particles, the alkali-free mesh cloth, the inorganic foaming agent, the cement-based cloth and water uniformly to obtain a bottom-layer mixture;
raw materials of the sandwich core layer: the polystyrene foam particles, the light perlite, the sodium silicate rubber powder, the portland cement, the powdery inorganic foaming agent, the powdery inorganic waterproof agent and the water are mixed and stirred uniformly to obtain a core layer mixture;
raw materials of the sandwich top layer are as follows: mixing and stirring Portland cement, light perlite particles, an inorganic foaming agent, an inorganic waterproof agent, non-woven fabric and water uniformly to obtain a top-layer mixture;
and injecting a core layer mixture above the sandwich core layer, leveling and drying to prepare a sandwich top layer, and thus obtaining the sandwich type cement-based insulation board.
In the preparation method of the sandwich-type cement-based insulation board in the embodiment 1-3, the stirring and mixing time of the raw materials of each layer of material is controlled to be 3-5 min, the mixture is poured out of the re-forming die after the stirring is finished, and the mixture is naturally dried for one week at the temperature of about 20 ℃ for fixed forming.
The sandwich cement-based insulation boards prepared in examples 1 to 3 were subjected to performance tests, and the results were as follows:
| thermal conductivity/W/M.K | Tensile strength/kPa | Compressive strength/MPa | Fire rating | |
| Example 1 | 0.0390 | 8.0 | 0.158 | A |
| Example 2 | 0.0435 | 8.1 | 0.155 | A |
| Example 3 | 0.0410 | 8.0 | 0.157 | A |
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A sandwich cement-based insulation board, comprising: the sandwich core layer, and the sandwich top layer and the sandwich bottom layer which are respectively arranged at two sides of the sandwich core layer;
the sandwich core layer is mainly prepared from the following raw materials in percentage by volume density per cubic meter: polystyrene foam particles of 7-14 kg/m317-23 kg/m of light perlite324-35 kg/m sodium silicate rubber powder335 to 47kg/m of Portland cement31-3 kg/m of powdery inorganic foaming agent31 to 5kg/m of powdery inorganic waterproofing agent34-14 kg/m of water3。
2. The sandwich cement-based insulation board according to claim 1, wherein the temperature of the water is 45-55 ℃.
3. The sandwich-type cement-based insulation board according to claim 1, wherein the density of the sandwich core layer is 85-120 kg/m3。
4. A sandwich cement based insulation board according to any one of claims 1-3, wherein the sandwich top layer is mainly made of the following raw materials, calculated as per cubic meter volume density, comprising: 180-220 kg/m Portland cement365-90 kg/m of light perlite particles31 to 4kg/m of an inorganic foaming agent31 to 5kg/m of an inorganic water-proofing agent30.5 to 2kg/m of nonwoven fabric315-20 kg of water/m3。
5. The sandwich-type cement-based insulation board according to claim 4, wherein the density of the sandwich top layer is 280-340 kg/m3。
6. A sandwich cement based insulation board according to any one of claims 1-3, wherein the sandwich base layer is mainly made of the following raw materials, calculated as volume density per cubic meter, comprising: 600-750 kg/m of Portland cement3And the light perlite particles are 80-120 kg/m3150-200 kg/m alkali-free mesh fabric31 to 3kg/m of an inorganic foaming agent33 to 8kg/m of cement-based cloth315-20 kg/m of water3。
7. The sandwich-type cement-based insulation board according to claim 6, wherein the density of the sandwich bottom layer is 700-1200 kg/m3。
8. A method of making a sandwich cement-based insulation board as claimed in any one of claims 1 to 7, comprising the steps of:
raw materials of the sandwich bottom layer are as follows: mixing and stirring the Portland cement, the light perlite particles, the alkali-free mesh cloth, the inorganic foaming agent, the cement-based cloth and water uniformly to obtain a bottom-layer mixture;
raw materials of the sandwich core layer are as follows: the polystyrene foam particles, the light perlite, the sodium silicate rubber powder, the portland cement, the powdery inorganic foaming agent, the powdery inorganic waterproof agent and the water are mixed and stirred uniformly to obtain a core layer mixture;
raw materials of the sandwich top layer are as follows: mixing and stirring Portland cement, light perlite particles, an inorganic foaming agent, an inorganic waterproof agent, non-woven fabric and water uniformly to obtain a top-layer mixture;
the sandwich type cement-based insulation board is characterized in that the sandwich type cement-based insulation board is obtained by preparing the bottom layer mixture into the sandwich bottom layer after injecting materials, leveling and drying, preparing the sandwich core layer above the sandwich bottom layer by injecting the core layer mixture into the sandwich layer mixture and preparing the sandwich layer above the sandwich core layer after leveling and drying.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111672359.XA CN114215207A (en) | 2021-12-31 | 2021-12-31 | Sandwich type cement-based insulation board and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IES20070849A2 (en) * | 2007-11-21 | 2009-12-09 | Gates Patent Ltd | Polyurethane or polyisocyanurate compositions and methods of producing same |
| CN102850018A (en) * | 2012-09-26 | 2013-01-02 | 张家港市玉龙科技板材有限公司 | Cement-based fiber reinforcement composite insulation board |
| CN113526916A (en) * | 2021-07-26 | 2021-10-22 | 梅蒎 | All-inorganic material insulation board and production process thereof, and production process of all-inorganic material composite decorative board |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IES20070849A2 (en) * | 2007-11-21 | 2009-12-09 | Gates Patent Ltd | Polyurethane or polyisocyanurate compositions and methods of producing same |
| CN102850018A (en) * | 2012-09-26 | 2013-01-02 | 张家港市玉龙科技板材有限公司 | Cement-based fiber reinforcement composite insulation board |
| CN113526916A (en) * | 2021-07-26 | 2021-10-22 | 梅蒎 | All-inorganic material insulation board and production process thereof, and production process of all-inorganic material composite decorative board |
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