CN113603406A - A kind of non-burning and non-steaming foam insulation composite material and preparation method thereof - Google Patents
A kind of non-burning and non-steaming foam insulation composite material and preparation method thereof Download PDFInfo
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- CN113603406A CN113603406A CN202110966631.9A CN202110966631A CN113603406A CN 113603406 A CN113603406 A CN 113603406A CN 202110966631 A CN202110966631 A CN 202110966631A CN 113603406 A CN113603406 A CN 113603406A
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- 239000002131 composite material Substances 0.000 title claims abstract description 90
- 239000006260 foam Substances 0.000 title claims abstract description 89
- 238000009413 insulation Methods 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims description 17
- 238000010025 steaming Methods 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 104
- 239000002699 waste material Substances 0.000 claims abstract description 85
- 239000000843 powder Substances 0.000 claims abstract description 77
- 239000004568 cement Substances 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 61
- 239000004088 foaming agent Substances 0.000 claims abstract description 54
- 239000000919 ceramic Substances 0.000 claims abstract description 32
- 239000003381 stabilizer Substances 0.000 claims abstract description 18
- 239000012190 activator Substances 0.000 claims abstract description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 78
- 229910052573 porcelain Inorganic materials 0.000 claims description 63
- 239000002994 raw material Substances 0.000 claims description 41
- 235000019353 potassium silicate Nutrition 0.000 claims description 34
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 34
- 239000003795 chemical substances by application Substances 0.000 claims description 32
- 239000003638 chemical reducing agent Substances 0.000 claims description 30
- 229910052602 gypsum Inorganic materials 0.000 claims description 24
- 239000010440 gypsum Substances 0.000 claims description 24
- 238000002156 mixing Methods 0.000 claims description 22
- 239000002253 acid Substances 0.000 claims description 17
- 235000021120 animal protein Nutrition 0.000 claims description 17
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 17
- 235000013539 calcium stearate Nutrition 0.000 claims description 17
- 239000008116 calcium stearate Substances 0.000 claims description 17
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 9
- 229920006248 expandable polystyrene Polymers 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 abstract description 7
- 239000002002 slurry Substances 0.000 abstract description 6
- 239000012774 insulation material Substances 0.000 abstract description 5
- 239000013543 active substance Substances 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract 2
- 238000003756 stirring Methods 0.000 description 24
- 238000005187 foaming Methods 0.000 description 18
- 238000000227 grinding Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 238000007873 sieving Methods 0.000 description 9
- 239000004033 plastic Substances 0.000 description 8
- 239000003755 preservative agent Substances 0.000 description 7
- 230000002335 preservative effect Effects 0.000 description 7
- 238000007790 scraping Methods 0.000 description 7
- 239000004794 expanded polystyrene Substances 0.000 description 6
- 238000005498 polishing Methods 0.000 description 6
- 239000004566 building material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- JYGQDULZZKKFTG-UHFFFAOYSA-N OS([AlH2])(=O)=O Chemical compound OS([AlH2])(=O)=O JYGQDULZZKKFTG-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- KJLFZWJDCDJCFB-UHFFFAOYSA-N nickel(ii) titanate Chemical compound [O-2].[O-2].[O-2].[Ti+4].[Ni+2] KJLFZWJDCDJCFB-UHFFFAOYSA-N 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
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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
-
- 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
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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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
- 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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
本发明属于保温材料技术领域，提供了一种免烧免蒸泡沫保温复合材料，以废瓷粉、赤泥和水泥为胶凝材料，加水后形成的浆体能在空气中或水中硬化，并能将各组分胶粘在一起，形成复合材料；通过添加发泡剂使胶凝材料在硬化的同时形成了气孔，结合稳泡剂的使用，使得复合材料中含有大量稳定的气孔，进而提高了复合材料的保温性能，降低了复合材料的导热系数；通过添加激发剂激发胶凝材料中的活性物质发生反应，促进各组分的胶粘，同时水泥有利于促进硬化，进而无需烧结和蒸压，在常温下进行养护即可得到导热系数小的泡沫保温复合材料。实施例的结果显示，本发明提供的免烧免蒸泡沫保温复合材料的导热系数为0.044W/(m·K)。
The invention belongs to the technical field of thermal insulation materials, and provides a non-burning and non-steaming foam thermal insulation composite material. Waste ceramic powder, red mud and cement are used as cementing materials. The slurry formed after adding water can be hardened in air or water, and can be The components are glued together to form a composite material; by adding a foaming agent, the cementitious material forms pores while hardening, and combined with the use of a foam stabilizer, the composite material contains a large number of stable pores, thereby improving the performance of the composite material. The thermal insulation performance of the composite material reduces the thermal conductivity of the composite material; by adding an activator to stimulate the reaction of the active substances in the cementitious material, the adhesion of each component is promoted, and the cement is conducive to promoting hardening, so there is no need for sintering and autoclaving. , the foam thermal insulation composite material with small thermal conductivity can be obtained by curing at room temperature. The results of the examples show that the thermal conductivity of the non-burning and non-steaming foam thermal insulation composite material provided by the present invention is 0.044W/(m·K).
Description
Technical Field
The invention relates to the technical field of heat insulation materials, in particular to a baking-free and steaming-free foam heat insulation composite material and a preparation method thereof.
Background
China is the first world in ceramic production, however, a large amount of ceramic waste is generated while a large amount of ceramic is produced, the quantity of ceramic polishing waste generated by national ceramic polishing brick production lines per year is more than 1000 million tons, the accumulation of a large amount of ceramic waste not only occupies land resources, but also easily causes dust raising and pollutes underground water due to open air stacking, and therefore the utilization problem of the ceramic waste is increasingly remarkable.
At present, the utilization of ceramic waste materials mainly comprises the following two modes: recycling and digesting, namely recycling the ceramic waste as a mineral raw material to prepare ceramic slurry; ceramic waste is used in building materials. Wherein, in the aspect of using ceramic waste materials as building materials, the thermal insulation materials with the thermal conductivity coefficient of 0.23W/(m.K) are prepared by sintering ceramic polished tile waste materials, high-temperature sand, low-temperature sand and various clay materials at 1175 ℃ in the aspect of using the ceramic polished tile waste materials in the aspect of using the ceramic polished tile waste materials in the aspect of using the ceramic polished tile, wherein, the aspect of using the ceramic polished tile, wherein the aspect of using the ceramic polished tile, the aspect of using the aspect of the aspect; the Sea Xiaojun takes ceramic polishing waste as a main raw material, is assisted by quartz and clay minerals, and is sintered at 1170 ℃ to prepare a heat-insulating building material with the thermal conductivity coefficient of 0.3W/(m.K) ("research on preparing high-strength light building material by using ceramic polishing waste", Sea Xiaojun et al, silicate report, 2011); the Zhao Wei uses ceramic polishing slag to prepare heat-insulating ceramic with the heat conductivity coefficient of 0.14W/(m.K) under the condition of 1160 ℃ (research on preparing light heat-insulating foamed ceramic by ceramic waste, Zhao Wei and the like, which is reported by silicates, 2019). However, the thermal insulation material prepared by using the ceramic waste material in the prior art has high thermal conductivity, and the thermal insulation material can be prepared only by sintering, so that a large amount of energy is consumed.
Disclosure of Invention
The invention aims to provide a baking-free and steaming-free foam heat-insulation composite material and a preparation method thereof.
The invention provides a baking-free and steaming-free foam heat-insulation composite material which is prepared from the following raw materials in percentage by mass:
30-60% of waste porcelain powder, 5-30% of red mud and 10-40% of cement;
the raw materials for preparing the baking-free steaming-free foam heat-insulation composite material comprise the following components in percentage by mass of 100% of the total mass of the waste porcelain powder, the red mud and the cement: 2-6% of an early strength agent, 3-7% of desulfurized gypsum, 0.1-0.5% of a water reducing agent, 6-10% of a foam stabilizer, 0.3-0.5% of a foaming agent, 10-18% of an exciting agent and 40-60% of water.
Preferably, the raw materials for preparing the baking-free steaming-free foam heat-insulation composite material also comprise 0.8-2.4% of foamed polystyrene and 0.2-0.6% of rubber powder, wherein the total mass of the waste ceramic powder, the red mud and the cement is 100%.
Preferably, the activator is made of water glass, sodium hydroxide and water.
Preferably, the modulus of the water glass is 1-2; the mass ratio of water glass to water in the excitant is (0.1-0.18): (0.4-0.6);
the mass content of sodium hydroxide in the excitant is calculated by the following formula:
wherein G isNaOHIs the mass content of sodium hydroxide in the excitant, a is SiO in the water glass2B is Na in the water glass2The mass content of O and M are the modulus of the water glass.
Preferably, the water reducing agent comprises a polycarboxylic acid water reducing agent.
Preferably, the foam stabilizer comprises calcium stearate.
Preferably, the foaming agent comprises an animal protein foaming agent.
The invention also provides a preparation method of the baking-free steaming-free foam heat-insulation composite material in the technical scheme, which comprises the following steps:
mixing the raw materials to obtain a mixed material;
and pouring the mixed material into a mould for curing to obtain the baking-free steaming-free foam heat-insulating composite material.
Preferably, the curing temperature is 20-25 ℃, and the curing time is 7-8 days.
The invention provides a baking-free and steaming-free foam heat-insulation composite material which is prepared from the following raw materials in percentage by mass: 30-60% of waste porcelain powder, 5-30% of red mud and 10-40% of cement; the raw materials for preparing the baking-free steaming-free foam heat-insulation composite material comprise the following components in percentage by mass of 100% of the total mass of the waste porcelain powder, the red mud and the cement: 2-6% of an early strength agent, 3-7% of desulfurized gypsum, 0.1-0.5% of a water reducing agent, 6-10% of a foam stabilizer, 0.3-0.5% of a foaming agent, 10-18% of an exciting agent and 40-60% of water. The invention takes waste porcelain powder, red mud and cement as cementing materials, slurry formed after water is added can be hardened in air or water, and all components can be glued together to form a composite material; the foaming agent is added to enable the cementing material to form air holes while hardening, and the composite material contains a large amount of stable air holes by combining the use of the foam stabilizer, so that the heat insulation performance of the composite material is improved, and the heat conductivity coefficient of the composite material is reduced; the activator is added to excite the active substances in the cementing material to react to generate cohesiveness and promote the adhesion of all components, and simultaneously, the use of the cement is beneficial to promoting hardening, so that the foam heat-insulating composite material with small heat conductivity coefficient can be obtained by maintaining at normal temperature without sintering and autoclaving. The results of the examples show that the heat conductivity coefficient of the baking-free steaming-free foam heat-insulating composite material provided by the invention is 0.044W/(m.K), and the dry density is 180kg/m3And the 28d compressive strength is 0.02 MPa.
Drawings
FIG. 1 is a process flow diagram of a preparation method of the baking-free and steaming-free foam heat-insulating composite material;
FIG. 2 is an XRD pattern of the foam insulation composite prepared in example 2 of the present invention.
Detailed Description
The invention provides a baking-free and steaming-free foam heat-insulation composite material which is prepared from the following raw materials in percentage by mass:
30-60% of waste porcelain powder, 5-30% of red mud and 10-40% of cement;
the raw materials for preparing the baking-free steaming-free foam heat-insulation composite material comprise the following components in percentage by mass of 100% of the total mass of the waste porcelain powder, the red mud and the cement: 2-6% of an early strength agent, 3-7% of desulfurized gypsum, 0.1-0.5% of a water reducing agent, 6-10% of a foam stabilizer, 0.3-0.5% of a foaming agent, 10-18% of an exciting agent and 40-60% of water.
The raw materials for preparing the baking-free and steaming-free foam heat-insulation composite material comprise, by mass, 30-60% of waste porcelain powder, preferably 35-50% of waste porcelain powder, and more preferably 45-50% of waste porcelain powder. The invention takes waste porcelain powder, red mud and cement as cementing materials, slurry formed after water is added can be hardened in air or water, and all components can be glued together, thereby obtaining the foam heat-insulating composite material. The source of the waste porcelain powder is not particularly limited in the invention, and ceramic waste materials well known to those skilled in the art can be adopted. In the invention, the waste porcelain powder is preferably ceramic polishing waste of Shandong Zibo. In the present invention, the composition of the waste porcelain powder preferably includes, by mass: SiO 2268.40％，Al2O320.00％，Na2O 3.43％，CaO 2.23％，K2O 2.11％，MgO 1.88％，Fe2O30.830％，TiO20.439％，SO30.348％，P2O50.0857% and the balance impurities.
The raw materials for preparing the baking-free steaming-free foam heat-insulation composite material comprise, by mass, 5-30% of red mud, preferably 10-20%, and more preferably 10-15%. The invention takes waste porcelain powder, red mud and cement as cementing materials, slurry formed after water is added can be hardened in air or water, and all components can be glued together, thereby obtaining the foam heat-insulating composite material. The source of the red mud is not particularly limited, and the red mud known to a person skilled in the art can be used. In the invention, the red mud is preferably Shanxi river mud.
The raw materials for preparing the baking-free steaming-free foam heat-insulation composite material comprise, by mass, 10-40% of cement, preferably 25-40% of cement, and more preferably 40% of cement. In the invention, the use of the cement is beneficial to promoting hardening, so that the foam heat-insulating composite material with small heat conductivity coefficient can be obtained by curing at normal temperature without sintering and autoclaving. The source of the cement is not particularly limited in the present invention, and a cement known to those skilled in the art may be used. In the invention, the cement is preferably the sulpho-aluminium cement sintered by utilizing solid wastes by Tianjin cement industry design research institute.
The raw materials for preparing the baking-free steaming-free foam heat-insulation composite material also comprise 2-6% of an early strength agent, preferably 4-6% of the early strength agent, wherein the total mass of the waste porcelain powder, the red mud and the cement is 100%. In the invention, the use of the early strength agent is beneficial to accelerating the hydration speed of cement.
The raw materials for preparing the baking-free steaming-free foam heat-insulation composite material also comprise 3-7% of desulfurized gypsum, preferably 6-7% of desulfurized gypsum, wherein the total mass of the waste porcelain powder, the red mud and the cement is 100%.
The raw materials for preparing the baking-free steaming-free foam heat-insulation composite material also comprise 0.1-0.5% of a water reducing agent, preferably 0.3-0.5% of the waste porcelain powder, the red mud and the cement, wherein the total mass of the waste porcelain powder, the red mud and the cement is 100%. In the invention, the use of the water reducing agent is beneficial to reducing the using amount of water. In the present invention, the water reducing agent preferably comprises a polycarboxylic acid water reducing agent.
The raw materials for preparing the baking-free steaming-free foam heat-insulation composite material also comprise 6-10% of a foam stabilizer, preferably 8-10% of the foam stabilizer, wherein the total mass of the waste porcelain powder, the red mud and the cement is 100%. In the invention, the foam generated by the foaming agent is favorably stabilized by using the foam stabilizer, so that the composite material contains a large number of stable air holes, the heat insulation performance of the composite material is improved, and the heat conductivity coefficient of the composite material is reduced. In the present invention, the foam stabilizer preferably includes calcium stearate.
The raw materials for preparing the baking-free steaming-free foam heat-insulation composite material also comprise 0.3-0.5% of foaming agent, preferably 0.39-0.49% of foaming agent, based on 100% of the total mass of the waste porcelain powder, the red mud and the cement. According to the invention, the foaming agent is added to enable the cementing material to form air holes while hardening, and the composite material contains a large amount of stable air holes by combining the use of the foam stabilizer, so that the heat insulation performance of the composite material is improved, and the heat conductivity coefficient of the composite material is reduced. In the present invention, the foaming agent preferably includes an animal protein foaming agent.
The raw materials for preparing the baking-free steaming-free foam heat-insulation composite material also comprise 10-18% of an exciting agent, preferably 14-16% of the exciting agent, wherein the total mass of the waste porcelain powder, the red mud and the cement is 100%. According to the invention, the activator is added to excite the active substance in the cementing material to react, so that cohesiveness is generated, the adhesion of each component is promoted, and meanwhile, the foaming thermal insulation composite material with small thermal conductivity coefficient can be obtained by curing at normal temperature without sintering and autoclaving in combination with the use of cement.
In the present invention, the activator is preferably made of water glass, sodium hydroxide and water. The invention preferably utilizes sodium hydroxide to adjust the modulus of the water glass, and can also create an alkaline environment for the subsequent reaction to promote the subsequent reaction. In the invention, the modulus of the water glass is preferably 1-2, and more preferably 2; the mass ratio of water glass to water in the excitant is preferably (0.1-0.18): (0.4 to 0.6), more preferably (0.14 to 0.18): (0.4-0.6); the mass content of sodium hydroxide in the excitant is preferably calculated by the following formula:
wherein G isNaOHIs the mass content of sodium hydroxide in the excitant, a is SiO in the water glass2B is Na in the water glass2The mass content of O and M are the modulus of the water glass.
The raw materials for preparing the baking-free steaming-free foam heat-insulation composite material also comprise 40-60% of water, preferably 50-60% of water, based on the total mass of the waste porcelain powder, the red mud and the cement being 100%. In the invention, the water is used as a solvent, so that the raw materials are uniformly mixed and glued together to form the composite material.
In the invention, the raw materials for preparing the baking-free steaming-free foam heat-insulation composite material preferably further comprise 0.8-2.4% of foamed polystyrene, and more preferably 1.2-2.4% of foamed polystyrene, based on 100% of the total mass of the waste porcelain powder, the red mud and the cement. In the invention, the expanded polystyrene contains a large amount of bubbles, which is beneficial to reducing the heat conductivity coefficient of the composite material.
In the invention, the raw materials for preparing the baking-free steaming-free foam heat-insulation composite material also preferably comprise 0.2-0.6% of rubber powder, and more preferably 0.4-0.6% of the total mass of the waste porcelain powder, the red mud and the cement by 100%. In the invention, the use of the rubber powder is beneficial to stabilizing bubbles in the expanded polystyrene, thereby being beneficial to obtaining the composite material with small heat conductivity coefficient.
The invention takes waste porcelain powder, red mud and cement as cementing materials, slurry formed after water is added can be hardened in air or water, and all components can be glued together to form a composite material; the foaming agent is added to enable the cementing material to form air holes while hardening, and the composite material contains a large amount of stable air holes by combining the use of the foam stabilizer, so that the heat insulation performance of the composite material is improved, and the heat conductivity coefficient of the composite material is reduced; the activator is added to excite the active substances in the cementing material to react to generate cohesiveness and promote the adhesion of all components, and simultaneously, the use of the cement is beneficial to promoting hardening, so that the foam heat-insulating composite material with small heat conductivity coefficient can be obtained by maintaining at normal temperature without sintering and autoclaving.
The invention also provides a preparation method of the baking-free steaming-free foam heat-insulation composite material in the technical scheme, which comprises the following steps:
mixing the raw materials to obtain a mixed material;
and pouring the mixed material into a mould for curing to obtain the baking-free steaming-free foam heat-insulating composite material.
The invention mixes the raw materials to obtain the mixed material.
In the present invention, the mixing of the respective raw materials preferably includes the steps of:
(1) mixing waste porcelain powder, red mud, cement, an early strength agent, desulfurized gypsum, a water reducing agent, a foam stabilizer, water and an exciting agent to obtain an excited mixed material;
(2) and (2) mixing the excited mixed material obtained in the step (1) with a foaming agent to obtain a mixed material.
The method preferably mixes the waste ceramic powder, the red mud, the cement, the early strength agent, the desulfurized gypsum, the water reducing agent, the foam stabilizer, the water and the excitant to obtain the excited mixed material.
The invention preferentially grinds and screens the waste porcelain powder and the red mud, and then mixes the waste porcelain powder and the red mud with other raw materials. The operation of the grinding and sieving is not particularly limited by the invention, and the technical scheme of grinding and sieving known to the skilled person can be adopted. In the present invention, the mesh number of the screen used for the screening is preferably 20 mesh. According to the invention, the mesh number of the screen is preferably controlled in the range, and if the mesh number of the screen is too small, the particle size of the obtained waste porcelain powder and red mud is too large, so that the raw materials are mixed unevenly or foams generated by a foaming agent are broken, and the heat conductivity coefficient of the composite material is increased; the mesh number of the screen is too small, the particle sizes of the obtained waste porcelain powder and red mud are too fine, and the waste porcelain powder and red mud are beneficial to the stability of foam, but the grinding cost is increased.
In the invention, the mixing of the waste ceramic powder, the red mud, the cement, the early strength agent, the desulfurized gypsum, the water reducing agent, the foam stabilizer, the water and the excitant is preferably carried out under the condition of stirring. In the invention, the stirring speed is preferably (62-70) +5r/min, more preferably (62-65) +5 r/min; the stirring time is preferably 300-600 s, and more preferably 300 s; the stirring device is preferably a JJ-5 planetary stirrer.
After the excited mixed material is obtained, the excited mixed material is preferably mixed with the foamed foaming agent to obtain the mixed material.
In the present invention, the foaming agent is preferably diluted with water and then foamed to obtain a foamed foaming agent. In the present invention, the volume ratio of the foaming agent to water is preferably 1: (40-50), more preferably 1: 40; the foaming mode is preferably physical foaming of a foaming machine. In the present invention, water for diluting the blowing agent is not used as raw material water.
In the present invention, the mixing of the excited mixture and the foamed foaming agent is preferably performed under stirring. In the invention, the stirring speed is preferably (62-70) +5r/min, more preferably (62-65) +5 r/min; the stirring time is preferably 300-600 s, and more preferably 300 s; the stirring device is preferably a JJ-5 planetary stirrer.
In the invention, when the raw materials for preparing the baking-free and steaming-free foam heat-insulation composite material preferably also comprise expanded polystyrene and latex, the expanded polystyrene is preferably added during preparation of the excited mixed material; the rubber powder is preferably added when the excited mixed material is mixed with the foaming agent which is well foamed.
After the mixed material is obtained, the mixed material is poured into a mould for curing, and the baking-free and steaming-free foam heat-insulating composite material is obtained.
In the invention, the curing temperature is preferably 20-25 ℃, and more preferably 23-25 ℃; the curing time is preferably 7-8 days; the mould is preferably a 50 x 25mm hexagonal cube mould.
In the present invention, the curing is particularly preferably: curing for 3-4 days at 20-25 ℃, removing the mold, and placing in a container for continuous curing for 7-8 days. In the present invention, the container is preferably a container with sealing properties; the container with sealing properties is preferably a plastic bag.
The process flow diagram of the preparation method of the baking-free steaming-free foam heat-insulation composite material is shown in figure 1, firstly, waste porcelain powder, red mud, cement, an early strength agent, desulfurized gypsum, a water reducing agent, a foam stabilizer, water and an excitant are mixed, and then a foaming agent is added to obtain a mixed material; and then placing the mixed material in a mold for molding, and demolding after natural curing to obtain the baking-free steaming-free foam heat-insulating composite material.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Raw materials (mass percent): 55% of waste porcelain powder, 5% of red mud and 40% of cement;
according to the total mass of the waste porcelain powder, the red mud and the cement, the early strength agent is 4 percent, the desulfurized gypsum is 7 percent, the polycarboxylic acid water reducing agent is 0.5 percent, the calcium stearate is 8 percent, the excitant is 14 percent, the animal protein foaming agent is 0.39 percent, and the water is 60 percent.
The preparation process comprises the following steps:
(1) grinding waste porcelain powder and red mud, and sieving with a 20-mesh sieve for later use; mixing water glass, sodium hydroxide and water to obtain an excitant; wherein the modulus of the water glass is 2, the mass ratio of the water glass to the water in the excitant is 0.14: 0.6, the mass content of sodium hydroxide in the excitant is 11 percent.
(2) Placing the excitant, waste porcelain powder, red mud, cement, an early strength agent, desulfurized gypsum, a polycarboxylic acid water reducing agent, calcium stearate and water in a JJ-5 planetary mixer, and stirring for 300s at the speed of 62+5r/min to obtain an excited mixed material.
(3) Mixing an animal protein foaming agent and water according to the ratio of 1:40, and then physically foaming by using a foaming machine to obtain the foamed foaming agent.
(4) And (3) placing the excited mixed material prepared in the step (2) and the foamed foaming agent prepared in the step (3) into a JJ-5 planetary mixer, and stirring for 300s at the speed of 62+5r/min to obtain the mixed material.
(5) Injecting the above mixture into a hexagonal mold of 50 × 50 × 25mm, scraping the upper surface with a scraper, sealing the preservative film, curing at 25 deg.C for 4 days, demolding, further curing in a plastic bag until 7 daysAnd obtaining the foam thermal insulation composite material. The thermal conductivity coefficient of the foam thermal insulation composite material is measured to be 0.063W/(m.K), and the dry density is 440kg/m3And the 28d compressive strength is 0.03 MPa.
Example 2
Raw materials (mass percent): 50% of waste porcelain powder, 10% of red mud and 40% of cement;
according to the total mass of the waste porcelain powder, the red mud and the cement, the early strength agent is 4 percent, the desulfurized gypsum is 7 percent, the polycarboxylic acid water reducing agent is 0.5 percent, the calcium stearate is 8 percent, the excitant is 14 percent, the animal protein foaming agent is 0.39 percent, and the water is 60 percent.
The preparation process comprises the following steps:
(1) grinding waste porcelain powder and red mud, and sieving with a 20-mesh sieve for later use; mixing water glass, sodium hydroxide and water to obtain an excitant; wherein the modulus of the water glass is 2, the mass ratio of the water glass to the water in the excitant is 0.14: 0.6, the mass content of sodium hydroxide in the excitant is 11 percent.
(2) Placing the excitant, waste porcelain powder, red mud, cement, an early strength agent, desulfurized gypsum, a polycarboxylic acid water reducing agent, calcium stearate and water in a JJ-5 planetary mixer, and stirring for 300s at the speed of 62+5r/min to obtain an excited mixed material.
(3) Mixing an animal protein foaming agent and water according to the ratio of 1:40, and then physically foaming by using a foaming machine to obtain the foamed foaming agent.
(4) And (3) placing the excited mixed material prepared in the step (2) and the foamed foaming agent prepared in the step (3) into a JJ-5 planetary mixer, and stirring for 300s at the speed of 62+5r/min to obtain the mixed material.
(5) And (3) injecting the mixed material into a hexagonal cube mold with the thickness of 50 multiplied by 25mm, scraping the upper surface by a scraper, sealing a preservative film, curing at 25 ℃ for 4 days, demolding, then putting into a plastic bag, continuing curing, and curing for 7 days to obtain the foam heat-insulating composite material. The thermal conductivity coefficient of the foam insulation is measured to be 0.11W/(m.K), and the dry density is 750kg/m3And the 28d compressive strength is 0.16 MPa.
FIG. 2 is an XRD pattern of the foam insulation composite prepared in this example. As can be seen from figure 2, the foam thermal insulation composite material provided by the invention mainly comprises quartz, and also comprises ettringite, hematite, fluorite, calcite and nickel titanium oxide.
Example 3
Raw materials (mass percent): 45% of waste porcelain powder, 15% of red mud and 40% of cement;
according to the total mass of the waste porcelain powder, the red mud and the cement, the early strength agent is 4 percent, the desulfurized gypsum is 7 percent, the polycarboxylic acid water reducing agent is 0.5 percent, the calcium stearate is 8 percent, the excitant is 14 percent, the animal protein foaming agent is 0.39 percent, and the water is 60 percent.
The preparation process comprises the following steps:
(1) grinding waste porcelain powder and red mud, and sieving with a 20-mesh sieve for later use; mixing water glass, sodium hydroxide and water to obtain an excitant; wherein the modulus of the water glass is 2, the mass ratio of the water glass to the water in the excitant is 0.14: 0.6, the mass content of sodium hydroxide in the excitant is 11 percent.
(2) Placing the excitant, waste porcelain powder, red mud, cement, an early strength agent, desulfurized gypsum, a polycarboxylic acid water reducing agent, calcium stearate and water in a JJ-5 planetary mixer, and stirring for 300s at the speed of 62+5r/min to obtain an excited mixed material.
(3) Mixing an animal protein foaming agent and water according to the ratio of 1:40, and then physically foaming by using a foaming machine to obtain the foamed foaming agent.
(4) And (3) placing the excited mixed material prepared in the step (2) and the foamed foaming agent prepared in the step (3) into a JJ-5 planetary mixer, and stirring for 300s at the speed of 62+5r/min to obtain the mixed material.
(5) And (3) injecting the mixed material into a hexagonal cube mold with the thickness of 50 multiplied by 25mm, scraping the upper surface by a scraper, sealing a preservative film, curing at 25 ℃ for 4 days, demolding, then putting into a plastic bag, continuing curing, and curing for 7 days to obtain the foam heat-insulating composite material. The thermal conductivity coefficient of the foam insulation is measured to be 0.09W/(m.K), and the dry density is measured to be 390kg/m3And the 28d compressive strength is 0.007 MPa.
Example 4
Raw materials (mass percent): 40% of waste porcelain powder, 20% of red mud and 40% of cement;
according to the total mass of the waste porcelain powder, the red mud and the cement, the early strength agent is 4 percent, the desulfurized gypsum is 7 percent, the polycarboxylic acid water reducing agent is 0.5 percent, the calcium stearate is 8 percent, the excitant is 14 percent, the animal protein foaming agent is 0.39 percent, and the water is 60 percent.
The preparation process comprises the following steps:
(1) grinding waste porcelain powder and red mud, and sieving with a 20-mesh sieve for later use; mixing water glass, sodium hydroxide and water to obtain an excitant; wherein the modulus of the water glass is 2, the mass ratio of the water glass to the water in the excitant is 0.14: 0.6, the mass content of sodium hydroxide in the excitant is 11 percent.
(2) Placing the excitant, waste porcelain powder, red mud, cement, an early strength agent, desulfurized gypsum, a polycarboxylic acid water reducing agent, calcium stearate and water in a JJ-5 planetary mixer, and stirring for 300s at the speed of 62+5r/min to obtain an excited mixed material.
(3) Mixing an animal protein foaming agent and water according to the ratio of 1:40, and then physically foaming by using a foaming machine to obtain the foamed foaming agent.
(4) And (3) placing the excited mixed material prepared in the step (2) and the foamed foaming agent prepared in the step (3) into a JJ-5 planetary mixer, and stirring for 300s at the speed of 62+5r/min to obtain the mixed material.
(5) And (3) injecting the mixed material into a hexagonal cube mold with the thickness of 50 multiplied by 25mm, scraping the upper surface by a scraper, sealing a preservative film, curing at 25 ℃ for 4 days, demolding, then putting into a plastic bag, continuing curing, and curing for 7 days to obtain the foam heat-insulating composite material. The thermal conductivity coefficient of the foam insulation is measured to be 0.07W/(m.K), and the dry density is measured to be 690kg/m3And the 28d compressive strength is 0.08 MPa.
Example 5
Raw materials (mass percent): 30% of waste porcelain powder, 30% of red mud and 40% of cement;
according to the total mass of the waste porcelain powder, the red mud and the cement, the early strength agent is 4 percent, the desulfurized gypsum is 7 percent, the polycarboxylic acid water reducing agent is 0.5 percent, the calcium stearate is 8 percent, the excitant is 14 percent, the animal protein foaming agent is 0.39 percent, and the water is 60 percent.
The preparation process comprises the following steps:
(1) grinding waste porcelain powder and red mud, and sieving with a 20-mesh sieve for later use; mixing water glass, sodium hydroxide and water to obtain an excitant; wherein the modulus of the water glass is 2, the mass ratio of the water glass to the water in the excitant is 0.14: 0.6, the mass content of sodium hydroxide in the excitant is 11 percent.
(2) Placing the excitant, waste porcelain powder, red mud, cement, an early strength agent, desulfurized gypsum, a polycarboxylic acid water reducing agent, calcium stearate and water in a JJ-5 planetary mixer, and stirring for 300s at the speed of 62+5r/min to obtain an excited mixed material.
(3) Mixing an animal protein foaming agent and water according to the ratio of 1:40, and then physically foaming by using a foaming machine to obtain the foamed foaming agent.
(4) And (3) placing the excited mixed material prepared in the step (2) and the foamed foaming agent prepared in the step (3) into a JJ-5 planetary mixer, and stirring for 300s at the speed of 62+5r/min to obtain the mixed material.
(5) And (3) injecting the mixed material into a hexagonal cube mold with the thickness of 50 multiplied by 25mm, scraping the upper surface by a scraper, sealing a preservative film, curing at 25 ℃ for 4 days, demolding, then putting into a plastic bag, continuing curing, and curing for 7 days to obtain the foam heat-insulating composite material. The thermal conductivity coefficient of the foam insulation is measured to be 0.08W/(m.K), and the dry density is 470kg/m3And the 28d compressive strength is 0.05 MPa.
Example 6
Raw materials (mass percent): 50% of waste porcelain powder, 10% of red mud and 40% of cement;
according to the total mass of the waste porcelain powder, the red mud and the cement, the early strength agent is 4 percent, the desulfurized gypsum is 7 percent, the polycarboxylic acid water reducing agent is 0.5 percent, the calcium stearate is 8 percent, the excitant is 14 percent, the animal protein foaming agent is 0.39 percent, the water is 60 percent, the rubber powder is 0.4 percent, and the expanded polystyrene is 2.4 percent.
The preparation process comprises the following steps:
(1) grinding waste porcelain powder and red mud, and sieving with a 20-mesh sieve for later use; mixing water glass, sodium hydroxide and water to obtain an excitant; wherein the modulus of the water glass is 2, the mass ratio of the water glass to the water in the excitant is 0.14: 0.6, the mass content of sodium hydroxide in the excitant is 11 percent.
(2) And (2) placing the excitant and the foamed polystyrene into a JJ-5 planetary mixer, adding the waste porcelain powder, the red mud, the cement, the early strength agent, the desulfurized gypsum, the polycarboxylic acid water reducing agent, the calcium stearate and the water, and then stirring for 300s at the speed of 62+5r/min to obtain an excited mixed material.
(3) Mixing an animal protein foaming agent and water according to the ratio of 1:40, and then physically foaming by using a foaming machine to obtain the foamed foaming agent.
(4) And (3) placing the excited mixed material prepared in the step (2) and the foamed foaming agent prepared in the step (3) into a JJ-5 planetary mixer, stirring at a speed of 62+5r/min, adding rubber powder while stirring, and obtaining the mixed material after 300 s.
(5) And (3) injecting the mixed material into a hexagonal cube mold with the thickness of 50 multiplied by 25mm, scraping the upper surface by a scraper, sealing a preservative film, curing at 25 ℃ for 4 days, demolding, then putting into a plastic bag, continuing curing, and curing for 7 days to obtain the foam heat-insulating composite material. The thermal conductivity of the composite material is measured to be 0.044W/(m.K), and the dry density is measured to be 180kg/m3And the 28d compressive strength is 0.02 MPa.
Example 7
Raw materials (mass percent): 50% of waste porcelain powder, 10% of red mud and 40% of cement;
according to the total mass of the waste porcelain powder, the red mud and the cement, the early strength agent is 4 percent, the desulfurized gypsum is 7 percent, the polycarboxylic acid water reducing agent is 0.5 percent, the calcium stearate is 8 percent, the excitant is 14 percent, the animal protein foaming agent is 0.39 percent, the water is 60 percent, the rubber powder is 0.6 percent, and the expanded polystyrene is 2.4 percent.
The preparation process comprises the following steps:
(1) grinding waste porcelain powder and red mud, and sieving with a 20-mesh sieve for later use; mixing water glass, sodium hydroxide and water to obtain an excitant; wherein the modulus of the water glass is 2, the mass ratio of the water glass to the water in the excitant is 0.14: 0.6, the mass content of sodium hydroxide in the excitant is 11 percent.
(2) And (2) placing the excitant and the foamed polystyrene into a JJ-5 planetary mixer, adding the waste porcelain powder, the red mud, the cement, the early strength agent, the desulfurized gypsum, the polycarboxylic acid water reducing agent, the calcium stearate and the water, and then stirring for 300s at the speed of 62+5r/min to obtain an excited mixed material.
(3) Mixing an animal protein foaming agent and water according to the ratio of 1:40, and then physically foaming by using a foaming machine to obtain the foamed foaming agent.
(4) And (3) placing the excited mixed material prepared in the step (2) and the foamed foaming agent prepared in the step (3) into a JJ-5 planetary mixer, stirring at a speed of 62+5r/min, adding rubber powder while stirring, and obtaining the mixed material after 300 s.
(5) And (3) injecting the mixed material into a hexagonal cube mold with the thickness of 50 multiplied by 25mm, scraping the upper surface by a scraper, sealing a preservative film, curing at 25 ℃ for 4 days, demolding, then putting into a plastic bag, continuing curing, and curing for 7 days to obtain the foam heat-insulating composite material. The thermal conductivity coefficient of the composite material is 0.057W/(m.K), and the dry density is 277kg/m3And the 28d compressive strength is 0.09 MPa.
As can be seen from the above examples, the baking-free and steaming-free foam heat-insulating composite material provided by the invention has a small thermal conductivity coefficient, does not need to be sintered or steamed, has a thermal conductivity coefficient of 0.044W/(m.K), and has a dry density of 180kg/m3And the 28d compressive strength is 0.02 MPa.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The baking-free and steaming-free foam heat-insulation composite material is prepared from the following raw materials in percentage by mass:
30-60% of waste porcelain powder, 5-30% of red mud and 10-40% of cement;
the raw materials for preparing the baking-free steaming-free foam heat-insulation composite material comprise the following components in percentage by mass of 100% of the total mass of the waste porcelain powder, the red mud and the cement: 2-6% of an early strength agent, 3-7% of desulfurized gypsum, 0.1-0.5% of a water reducing agent, 6-10% of a foam stabilizer, 0.3-0.5% of a foaming agent, 10-18% of an exciting agent and 40-60% of water.
2. The baking-free and steaming-free foam thermal insulation composite material as claimed in claim 1, wherein the raw materials for preparing the baking-free and steaming-free foam thermal insulation composite material further comprise 0.8-2.4% of foamed polystyrene and 0.2-0.6% of rubber powder, based on 100% of the total mass of the waste ceramic powder, the red mud and the cement.
3. The baking-free steaming-free foam insulation composite material as claimed in claim 1 or 2, wherein the activator is made of water glass, sodium hydroxide and water.
4. The baking-free and steaming-free foam thermal insulation composite material as claimed in claim 3, wherein the modulus of the water glass is 1-2; the mass ratio of water glass to water in the excitant is (0.1-0.18): (0.4-0.6);
the mass content of sodium hydroxide in the excitant is calculated by the following formula:
wherein G isNaOHIs the mass content of sodium hydroxide in the excitant, a is SiO in the water glass2B is Na in the water glass2The mass content of O and M are the modulus of the water glass.
5. The baking-free steaming-free foam insulation composite material as claimed in claim 1 or 2, wherein the water reducing agent comprises a polycarboxylic acid water reducing agent.
6. The baking-free steaming-free foam insulation composite material according to claim 1 or 2, wherein the foam stabilizer comprises calcium stearate.
7. The baking-free, steaming-free foam insulation composite material according to claim 1 or 2, wherein the foaming agent comprises an animal protein foaming agent.
8. The preparation method of the baking-free steaming-free foam thermal insulation composite material as claimed in any one of claims 1 to 7, which comprises the following steps:
mixing the raw materials to obtain a mixed material;
and pouring the mixed material into a mould for curing to obtain the baking-free steaming-free foam heat-insulating composite material.
9. The method according to claim 8, wherein the curing temperature is 20 to 25 ℃ and the curing time is 7 to 8 days.
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| CN116535116A (en) * | 2023-04-10 | 2023-08-04 | 东南大学 | Preparation method of foam cement with self-contained dry shrinkage resistance |
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| CN110105083A (en) * | 2019-05-24 | 2019-08-09 | 中国地质大学（北京） | Red mud base thermal insulation material and its preparation method and application |
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| CN107840643A (en) * | 2017-11-23 | 2018-03-27 | 济南大学 | One kind inhales wave mode ceramic base composite insulation boards and preparation method thereof |
| CN107986757A (en) * | 2017-11-23 | 2018-05-04 | 济南大学 | A kind of preparation method for inhaling wave mode ceramic base compound insulating material and products thereof |
| CN108546151A (en) * | 2018-06-29 | 2018-09-18 | 攀钢冶金材料有限责任公司 | A kind of non-evaporating foster type foaming wall body materials of lightweight and preparation method thereof |
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