CN116084584A - Aerogel material composite insulation board and preparation method thereof - Google Patents

Aerogel material composite insulation board and preparation method thereof Download PDF

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Publication number
CN116084584A
CN116084584A CN202310353893.7A CN202310353893A CN116084584A CN 116084584 A CN116084584 A CN 116084584A CN 202310353893 A CN202310353893 A CN 202310353893A CN 116084584 A CN116084584 A CN 116084584A
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aerogel
insulation board
composite insulation
mold
materials
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高军
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Zhongheng New Material Si Tech Co ltd
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Zhongheng New Material Si Tech Co ltd
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/14—Minerals of vulcanic origin
    • C04B14/18—Perlite
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/22—Glass ; Devitrified glass
    • 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
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04—Macromolecular compounds
    • 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
    • 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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/04—Inorganic
    • B32B2266/049—Water-setting material, e.g. concrete, plaster or asbestos cement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/12—Gel
    • B32B2266/126—Aerogel, i.e. a supercritically dried gel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/10—Insulation, e.g. vacuum or aerogel insulation

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Acoustics & Sound (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses an aerogel material composite insulation board and a preparation method thereof, wherein the composite insulation board comprises a vacuum insulation board and an aerogel layer wrapped outside the vacuum insulation board; the raw materials of the aerogel layer comprise: the raw materials of the aerogel layer per square meter can be divided into: 10.2kg of lightweight aggregate, 4kg of fumed silica, 9.6kg of cement, 0.15kg of rubber powder, 0.05kg of cellulose and 12kg of water. The preparation method of the composite insulation board comprises the following steps: s1, preparing materials; s2, mixing materials; s3, primary material distribution; s4, distributing plates; s5, secondary cloth; s6, leveling; s7, steaming; s8, demolding; s9, trimming and polishing; s10, detection. According to the invention, the aerogel layer is coated outside the vacuum insulation panel through the pre-pressing steam curing and other processes, so that the mechanical strength and impact resistance of the product are increased, the high-efficiency energy-saving and fireproof combination is realized, the product density is low, the strength is high, the thermal resistance is high, the water absorption is avoided, and the freeze thawing resistance is good.

Description

Aerogel material composite insulation board and preparation method thereof
Technical Field
The invention relates to the technical field of heat insulation materials, in particular to an aerogel material composite heat insulation board and a preparation method thereof.
Background
Along with the promotion of national policies, the assembled building is greatly promoted in various areas, and meanwhile, under the double-carbon target, the building energy-saving standard is continuously improved; along with this, the requirements of the green building on safety, durability, energy conservation, resource conservation and the like are also higher by promoting the high-quality development and update of the green building, and materials with better heat preservation performance and safety performance are needed for the building external maintenance system to meet the requirements.
However, most of the existing heat-insulating materials are heat-insulating, fireproof and non-heat-insulating, and particularly in the existing assembled sandwich prefabricated components, the problems are increasingly remarkable, such as rock wool materials, which are poor in heat-insulating performance and easy to absorb water, and the sandwich prefabricated components are thick, so that the total weight of the sandwich prefabricated components is overweight; organic materials such as graphite polyphenyl board, polyurethane, extruded sheet are lower in heat conductivity coefficient and good in heat preservation performance, but belong to non-incombustible materials, the outer blade plate needs to be thickened to increase safety, so that the use cost of connecting pieces and other materials is greatly increased, the combustion performance can not meet the A-level requirement, a large amount of harmful substances are easy to release during combustion, fire hazards are large, and the materials are limited in practical application.
In view of the above drawbacks, those skilled in the art have studied an aerogel material, called "the lightest solid material", which is an inorganic material having a class a incombustible property and a low thermal conductivity, and thus has become a new type of thermal insulation material of international interest, also called "super thermal insulation material". In the prior art, the components and the proportions of the aerogel materials are different, and although certain fireproof heat preservation performance is met, the strength and the impact resistance are insufficient, the damage to the metal connecting piece and the large-particle concrete is difficult to be avoided, the aerogel material also has certain water absorbability, the deformation and the failure of the composite board are easy to cause, the composite board is in a low-temperature frozen damage structure, the binding power is poor, the stability of the composite board is insufficient, and the durability is low, so that the aerogel material composite board with more reasonable components and proportions and capable of solving the defects is urgently needed to be researched.
Disclosure of Invention
The invention aims to provide an aerogel material composite insulation board and a preparation method thereof, wherein the outer side of a vacuum insulation board is coated with a novel aerogel material, and the composite insulation board is prepared through the processes of prepressing steam curing and the like, so that the mechanical strength and the impact resistance of a product are increased, the high-efficiency energy-saving and fireproof performance is realized, the product density is low, the strength is high, the thermal resistance is high, the water absorption is avoided, and the freeze thawing resistance is good.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an aerogel material composite insulation board, the composite insulation board comprising:
vacuum insulation panels;
an aerogel layer; the aerogel layer is wrapped outside the vacuum insulation panel; the raw materials of the aerogel layer comprise: the raw materials of the aerogel layer per square meter can be divided into: 10.2kg of lightweight aggregate, 4kg of fumed silica, 9.6kg of cement, 0.15kg of rubber powder, 0.05kg of cellulose and 12kg of water.
Preferably, the lightweight aggregate is any one of polyphenyl particles, glass combustibles and perlite.
Preferably, the aerogel layer has a thickness of 40mm.
Preferably, the vacuum insulation panel is formed by compounding a barrier film and a heat insulation core material, and the barrier film is formed by sequentially bonding a PET film layer, an aluminized PET film layer and a PE film layer.
Preferably, the strength of the composite insulation board is more than or equal to 0.1MPa, the mass per cubic meter is less than or equal to 340kg, the water absorption is less than or equal to 10, the heat conductivity coefficient is less than or equal to 0.012W/(m.k), and the thermal resistance is more than or equal to 3.3 (m) 2 ·k）/W。
Preferably, the aerogel layer has a honeycomb-like surface.
The invention also provides a preparation method of the aerogel material composite insulation board, which comprises the following steps:
s1: preparing materials, namely weighing the lightweight aggregate, fumed silica, cement, rubber powder, cellulose and water, and preparing a vacuum insulation panel finished product;
s2: mixing, namely placing the lightweight aggregate, the fumed silica, the rubber powder and the cellulose into a stirring tank for stirring uniformly, placing the mixed dry material, cement and water into a wet mixer for stirring uniformly to obtain aerogel materials, and placing the aerogel materials into a storage bin;
s3: laying the aerogel material obtained in the step S2 at the bottom of the die by primary material distribution;
s4: a cloth plate, wherein a vacuum insulation panel is placed on the backing material which is arranged in the step S3;
s5: laying aerogel materials around and on the top surface of the vacuum insulation panel, and sealing the top cover of the die;
s6: leveling, namely placing the die with the finished cloth on a vibration platform for vibration to level aerogel materials;
s7: steaming, standing the leveled mold at room temperature for 2-6 h, putting the mold into a steaming bin, heating and curing the mold at a temperature of not more than 10 ℃/h, keeping the temperature in the bin at a constant temperature of not more than 80 ℃, curing the mold at a temperature of not more than 65 ℃, and finally cooling and curing the mold at a cooling rate of not more than 10 ℃/h;
s8: demolding, namely disassembling the mould shell of the mould, and taking out the formed composite heat-insulating plate;
s9: trimming and polishing, namely trimming burrs and protruding points of the product by using trimming and polishing equipment, so that the appearance of the product is ensured;
s10: detecting, checking the appearance of the product, detecting whether the size of the product meets the requirement or not by using a vernier caliper, and measuring whether the heat conductivity of the product meets the requirement or not by using a heat conductivity coefficient meter.
Preferably, the mold is a plug-in assembled mold, and the inner side of the mold shell is provided with a honeycomb structure.
The invention has the beneficial effects that:
(1) The invention discloses a novel aerogel material which is coated outside a vacuum insulation panel by a pre-pressing steam curing process to prepare a composite insulation board finished product, wherein the material is prepared by mixing lightweight aggregate, fumed silica, cement, rubber powder, cellulose and water according to a certain mass ratio, so that the mechanical strength and the impact resistance of the product are improved, and the problem of puncture damage is avoided in the production process of sandwich prefabricated parts;
meanwhile, the aerogel powder filled with the lightweight aggregate is used as a raw material, and has the characteristics of high strength, light weight, good heat insulation performance, no water absorption and good freeze thawing resistance;
(2) The surface of the aerogel layer forms a honeycomb plate surface, so that the longitudinal shearing force and the bonding force with concrete can be increased, the system is more stable, and the durability is better;
(3) The composite heat-insulating board has excellent heat-insulating performance, the thickness of the heat-insulating layer can be greatly reduced, the thickness of the outer leaf plate is reduced, the whole thickness of the wall body is greatly reduced, the fire-proof grade of the product is A grade, and no fire-proof measures are required; the components are thinned, the weight is reduced, the load of the drawknot component is reduced, the anti-seismic performance is enhanced, the use of wall connectors is reduced, and the processing cost of sandwich prefabricated components can be further reduced;
(4) The invention can realize customized production, zero loss in the construction process, lower the engineering use cost, reuse industrial solid waste materials, improve the energy-saving level of the building, and promote the cyclic, green and low-carbon development of the building material industry.
Drawings
FIG. 1 is a schematic structural view of a composite insulation board according to the present embodiment;
FIG. 2 is a front cross-sectional view of the composite insulation board of the present embodiment;
fig. 3 is a side sectional view of the composite insulation board of the present embodiment.
In the figure:
100-a composite insulation board; 110-vacuum insulation panels;
120-an aerogel layer.
Detailed Description
For a better understanding of the present invention, those skilled in the art will now make a clear and complete description of the present invention in conjunction with the specific embodiments described, it being evident that the embodiments described are only some, but not all, of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-3 illustrate an aerogel material composite insulation board provided in this embodiment, including: a vacuum insulation panel 110 and an aerogel layer 120; the aerogel layer 120 is wrapped outside the vacuum insulation panel 110, and the aerogel layer 120 comprises the following raw materials: the raw materials of the lightweight aggregate, fumed silica, cement, rubber powder, cellulose and water, per square meter of aerogel layer 120 can be divided into: 10.2kg of lightweight aggregate, 4kg of fumed silica, 9.6kg of cement, 0.15kg of rubber powder, 0.05kg of cellulose and 12kg of water.
The lightweight aggregate of the embodiment can be any one of polyphenyl particles, glass combustibles and perlite.
The vacuum insulation panel 110 of the present embodiment is formed by compounding a barrier film and a heat insulation core material, and the barrier film is formed by sequentially bonding a PET film layer, an aluminized PET film layer and a PE film layer, so that the present embodiment has better barrier performance.
Further, the thickness of the aerogel layer 120 is 40mm, and the surface is honeycomb, so that the longitudinal shearing force and the adhesion force with concrete are increased, the system is more stable, and the durability is better.
The performance of the finished composite insulation board of the embodiment: the strength is more than or equal to 0.1MPa, the mass per cubic meter is less than or equal to 340kg, the water absorption is less than or equal to 10, the heat conductivity coefficient is less than or equal to 0.012W/(m.k), and the thermal resistance is more than or equal to 3.3 (m) 2 The composite insulation board of the embodiment has high strength, light weight, good heat insulation performance, no water absorption and water resistanceGood freeze thawing property.
The preparation method of the aerogel material composite insulation board comprises the following steps:
s1: preparing materials, namely weighing the lightweight aggregate, fumed silica, cement, rubber powder, cellulose and water, and preparing a finished product of the vacuum insulation panel 110;
s2: mixing, namely placing the lightweight aggregate, the fumed silica, the rubber powder and the cellulose into a stirring tank for stirring uniformly, placing the mixed dry material, cement and water into a wet mixer for stirring uniformly to obtain aerogel materials, and placing the aerogel materials into a storage bin;
s3: laying the aerogel material obtained in the step S2 at the bottom of the die by primary material distribution;
s4: a cloth plate for placing the vacuum insulation panel 110 on the backing material which is arranged in the step S3;
s5: laying aerogel materials around and on the top surface of the vacuum insulation panel 110, and sealing the top cover of the die;
s6: leveling, namely placing the die with the finished cloth on a vibration platform for vibration to level aerogel materials;
s7: steaming, standing the leveled mold at room temperature for 2-6 h, putting the mold into a steaming bin, heating and curing the mold at a temperature of not more than 10 ℃/h, keeping the temperature in the bin at a constant temperature of not more than 80 ℃, curing the mold at a temperature of not more than 65 ℃, and finally cooling and curing the mold at a cooling rate of not more than 10 ℃/h;
s8: demolding, namely disassembling the mould shell of the mould, and taking out the formed composite heat-insulating plate 100;
s9: trimming and polishing, namely trimming burrs and protruding points of the product by using trimming and polishing equipment, so that the appearance of the product is ensured;
s10: detecting, checking the appearance of the product, detecting whether the size of the product meets the requirement or not by using a vernier caliper, and measuring whether the heat conductivity of the product meets the requirement or not by using a heat conductivity coefficient meter.
Further, in order to facilitate demolding of the product, the mold used in this embodiment is a plug-in assembled mold, and the inner side of the mold shell of the mold has a honeycomb structure, so that the surface of the aerogel layer 120 can be molded conveniently.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. An aerogel material composite insulation board, characterized in that the composite insulation board (100) comprises:
a vacuum insulation panel (110);
an aerogel layer (120); the aerogel layer (120) is wrapped outside the vacuum insulation panel (110); the aerogel layer (120) comprises the following raw materials: the raw materials of the aerogel layer (120) per square meter comprise, by mass, lightweight aggregate, fumed silica, cement, rubber powder, cellulose and water: 10.2kg of lightweight aggregate, 4kg of fumed silica, 9.6kg of cement, 0.15kg of rubber powder, 0.05kg of cellulose and 12kg of water.
2. The aerogel material composite insulation board of claim 1, wherein the lightweight aggregate is any one of polyphenyl particles, glass combustibles and perlite.
3. An aerogel material composite insulation panel as claimed in claim 1, wherein the aerogel layer (120) has a thickness of 40mm.
4. The aerogel material composite insulation board according to claim 1, wherein the vacuum insulation panel (110) is formed by compounding a barrier film and an insulation core material, and the barrier film is formed by sequentially bonding a PET film layer, an aluminized PET film layer and a PE film layer.
5. The aerogel material composite insulation board according to claim 1, wherein the strength of the composite insulation board (100) is not less than 0.1MPa, the mass per cubic meter is not more than 340kg, the water absorption is not more than 10, and the thermal conductivity is not more than0.012W/(m.k), thermal resistance is not less than 3.3 (m) 2 ·k）/W。
6. The aerogel material composite insulation panel of claim 1, wherein the aerogel layer (120) has a honeycomb-like surface.
7. A method for preparing the aerogel material composite insulation board as claimed in any one of claims 1 to 6, comprising the following steps:
s1: preparing materials, namely weighing the lightweight aggregate, fumed silica, cement, rubber powder, cellulose and water, and preparing a finished product of the vacuum insulation panel (110);
s2: mixing, namely placing the lightweight aggregate, the fumed silica, the rubber powder and the cellulose into a stirring tank for stirring uniformly, placing the mixed dry material, cement and water into a wet mixer for stirring uniformly to obtain aerogel materials, and placing the aerogel materials into a storage bin;
s3: laying the aerogel material obtained in the step S2 at the bottom of the die by primary material distribution;
s4: a cloth plate, wherein a vacuum insulation panel (110) is placed on the backing material distributed in the step S3;
s5: laying aerogel materials around and on the top surface of the vacuum insulation panel (110) and sealing the top cover of the die;
s6: leveling, namely placing the die with the finished cloth on a vibration platform for vibration to level aerogel materials;
s7: steaming, standing the leveled mold at room temperature for 2-6 h, putting the mold into a steaming bin, heating and curing the mold at a temperature of not more than 10 ℃/h, keeping the temperature in the bin at a constant temperature of not more than 80 ℃, curing the mold at a temperature of not more than 65 ℃, and finally cooling and curing the mold at a cooling rate of not more than 10 ℃/h;
s8: demolding, namely disassembling the mould shell of the mould, and taking out the formed composite heat-insulating board (100);
s9: trimming and polishing, namely trimming burrs and protruding points of the product by using trimming and polishing equipment, so that the appearance of the product is ensured;
s10: detecting, checking the appearance of the product, detecting whether the size of the product meets the requirement or not by using a vernier caliper, and measuring whether the heat conductivity of the product meets the requirement or not by using a heat conductivity coefficient meter.
8. The method for preparing an aerogel material composite insulation board according to claim 7, wherein the mold is a plug-in assembly mold, and the inner side of the mold shell is provided with a honeycomb structure.
CN202310353893.7A 2023-04-06 2023-04-06 Aerogel material composite insulation board and preparation method thereof Pending CN116084584A (en)

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