CN113400739A - Aerogel-containing phase change energy storage heat preservation plate and preparation method and application thereof - Google Patents
Aerogel-containing phase change energy storage heat preservation plate and preparation method and application thereof Download PDFInfo
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- CN113400739A CN113400739A CN202110798387.XA CN202110798387A CN113400739A CN 113400739 A CN113400739 A CN 113400739A CN 202110798387 A CN202110798387 A CN 202110798387A CN 113400739 A CN113400739 A CN 113400739A
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
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- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
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Abstract
The invention discloses a phase change energy storage heat preservation plate containing aerogel, and a preparation method and application thereof. Phase change energy storage insulation board includes core structure and cortex structure, the core structure including as the even porous material of reinforcing phase, and pack distribute in even inside filling layer of porous material, the filling layer includes phase change aerogel filler and thermal insulation material, phase change aerogel filler is including the aerogel material that has even porous structure and the phase change material of packing distribution in its pore. The phase change material is combined with the aerogel material, and the phase change material is limited by the extremely strong capillary force of the nanometer pore passage, so that the adverse effects caused by leakage of the phase change material and uneven distribution of the phase change material in the phase change behavior are avoided. In addition, the extremely low density of the aerogel can greatly reduce the density of the phase-change energy-storage heat-insulation board, and has great application prospect in the fields of industry, building heat insulation, military, aerospace, composite materials and the like.
Description
Technical Field
The invention relates to a heat insulation board, in particular to a phase change energy storage heat insulation board containing aerogel and a preparation method and application thereof, and belongs to the technical field of building materials.
Background
With the proposals of building energy-saving system concepts such as Passive houses (Passive houses), zero emission buildings (zero emission buildings) and the like, the Passive houses and the zero emission buildings show that the Passive houses and the zero emission buildings actively deal with higher building energy consumption at home and abroad, and the heat insulation and the heat preservation of the buildings play an important role. As part of building materials, the importance of thermal insulation is steadily increasing. The light heat-insulating material has limited thermal capacity and low heat storage capacity, and cannot achieve the purpose of efficient heat storage and heat insulation, so that the traditional heat-insulating material with low heat conductivity coefficient cannot meet the actual use requirement.
The phase change energy storage honeycomb composite board mainly made of honeycomb materials is manufactured by adding phase change materials into traditional building honeycomb materials, and the phase change energy storage honeycomb composite board is a light building material with high heat capacity and has high latent heat storage capacity. The material can improve the energy-saving heat-insulating capacity of buildings, automatically adjust the indoor temperature, reduce the fluctuation of the indoor temperature and improve the comfort level.
However, the phase-change material has high self thermal conductivity, and when the phase-change material is added into the honeycomb panel, the overall thermal conductivity of the honeycomb panel is increased, and even if the traditional foam material is matched as a phase-change material carrier, the phase-change material with high thermal conductivity can form a thermal conductive network, so that the thermal insulation performance of the honeycomb panel is reduced. In addition, in the phase change process, the phase change material can flow out of the honeycomb plate or the porous medium due to the change of the state of the phase change material, so that the phase change material is not uniformly distributed, and the performance of the phase change energy storage honeycomb composite plate is adversely affected.
Disclosure of Invention
The invention mainly aims to provide an aerogel-containing phase change energy storage thermal insulation board and a preparation method and application thereof, so as to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention comprises the following steps:
the embodiment of the invention provides an aerogel-containing phase-change energy-storage thermal insulation board, which comprises a core board structure and a skin layer structure covered on the surface of the core board structure, wherein the core board structure comprises a uniform porous material serving as a reinforcing phase and a filling layer filled and distributed in the uniform porous material, the filling layer is provided with a multilayer composite structure comprising a phase-change aerogel filler and a thermal insulation material, and the phase-change aerogel filler comprises an aerogel material with a uniform porous structure and a phase-change material filled and distributed in pore channels of the aerogel material.
In some embodiments, the aerogel-containing phase change energy storage insulation board has a density of 70-150kg/m3The thermal conductivity is 0.02-0.06 (W/(m.K), the compressive strength is 1.5-2.6MPa, and the shear strength is 1-1.5 MPa.
In some embodiments, the phase change material comprises any one or a combination of two or more of paraffin, hexadecane, heptadecane, eicosane, pentaerythritol, butanediamine.
Further, the content of the phase-change material in the phase-change aerogel filler is 10-50 wt%
In some embodiments, the aerogel material comprises any one or a combination of two or more of silica aerogel, alumina aerogel, titania aerogel, graphene aerogel, polyimide aerogel and polyamide aerogel, and the aerogel material is in the form of aerogel powder, aerogel particles, aerogel fibers and aerogel blocks.
Further, the aerogel material is aerogel powder with a nanometer pore structure.
The embodiment of the invention also provides a preparation method of the aerogel-containing phase-change energy-storage thermal insulation board, which comprises the following steps:
filling a phase-change material into the aerogel material with a uniform porous structure to form a phase-change aerogel filler;
compounding the phase-change aerogel filler with a heat insulation material to form a multi-layer composite structure, and filling the multi-layer composite structure serving as a filling layer into a pore channel formed by a uniform porous material serving as a reinforcing phase to prepare a core plate structure;
and covering a skin layer structure on the surface of the core plate structure to obtain the aerogel-containing phase change energy storage heat preservation plate.
The embodiment of the invention also provides application of the aerogel-containing phase change energy storage thermal insulation board in the fields of industrial and building thermal insulation, military, aerospace or composite materials and the like.
Compared with the prior art, the invention has the following beneficial effects:
1) the aerogel material adopted by the invention has extremely low density, can greatly reduce the density of the phase-change energy-storage heat-preservation plate, and has great application prospect in the fields of industrial and building heat insulation, military and aerospace, composite materials and the like;
2) the phase-change aerogel filler is formed by filling the phase-change material into the aerogel material with a uniform porous structure, the special phase-change aerogel filler does not have the problem of phase-change material leakage, and the phase-change material can be limited by using extremely strong capillary force of a nanometer pore passage, so that the adverse effects caused by leakage of the phase-change material and uneven distribution of the phase-change material in the phase-change behavior are avoided;
3) the aerogel-containing phase-change energy-storage thermal insulation board provided by the invention has a lower thermal conductivity, the long framework structure of the aerogel can make up the influence of the introduced phase-change material on the heat conduction of the whole structure of the material, and the aerogel material with a longer heat transfer path is matched with the thermal insulation material to form a multilayer structure, so that the phase-change energy-storage thermal insulation board can have a lower density and a lower thermal conductivity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an aerogel-containing phase change energy storage insulation board according to an exemplary embodiment of the present invention;
fig. 2 is a schematic view showing the structure of the inner filling layer of the honeycomb cell of fig. 1.
Detailed Description
In view of the deficiencies in the prior art, the inventors of the present invention have made extensive studies and extensive practices to provide technical solutions of the present invention. The technical solution, its implementation and principles, etc. will be further explained as follows.
The terms to which the present invention relates are explained as follows:
1. aerogel: the aerogel is a nano porous amorphous solid material and has the characteristics of low density, large specific surface area and high porosity, and the density variation range is 0.03-0.15 g/cm3The specific surface area can be as high as 1500m2The porosity can reach 99.8 percent, and is one of the solid materials with the lowest known thermal conductivity.
2. Phase change material: refers to a substance that changes its state and provides latent heat at a constant temperature. The process of changing physical properties is called a phase change process, and in this case, the phase change material absorbs or releases a large amount of latent heat. When the phase change material has phase change behavior, the solid-liquid behavior changes.
The main inventive concept principle of the invention is as follows: utilize even porous material aerogel, pack the phase change material and obtain the aerogel filler in the aerogel, cooperate the foam material of low thermal conductivity to even porous material is as the reinforcing phase, solves the problem of revealing of phase change material in the phase transition in-process in traditional phase transition energy storage honeycomb panel, and promotes the thermal-insulated thermal insulation performance of phase transition energy storage heated board.
One aspect of an embodiment of the present invention provides an aerogel-containing phase-change energy-storage thermal insulation board, including a core plate structure and a skin layer structure covering a surface of the core plate structure, where the core plate structure includes a uniform porous material as a reinforcing phase and a filling layer filled and distributed in the uniform porous material, the filling layer has a multi-layer composite structure including a phase-change aerogel filler and a thermal insulation material, and the phase-change aerogel filler includes an aerogel material having a uniform porous structure and a phase-change material filled and distributed in pores of the aerogel material.
In some embodiments, the aerogel-containing phase change energy storage insulation board has a density of 70-150kg/m3The thermal conductivity is 0.02-0.06 (W/(m.K), the compressive strength is 1.5-2.6MPa, and the shear strength is 1-1.5 MPa.
In some embodiments, the phase change material includes any one or a combination of two or more of paraffin, hexadecane, heptadecane, eicosane, pentaerythritol, butanediamine, and the like, but is not limited thereto.
In some embodiments, the phase change material is present in the phase change aerogel filler in an amount of 10 to 50 wt.%. The phase-change material in the aerogel pore channel absorbs a large amount of heat and stores in the temperature rising process, and slowly releases the heat in the heat release process, and the heat insulation performance of the phase-change energy storage heat preservation board can be greatly improved by matching with the foam material with low heat conductivity.
In the invention, the phase-change aerogel filling material is adopted, so that the problem of phase-change material leakage is avoided, and the phase-change material can be limited by the extremely strong capillary force of the nanometer pore passage, so that the adverse effects caused by phase-change material leakage and phase-change material uneven distribution in the phase-change behavior are avoided.
In some embodiments, the volume content of the phase-change aerogel filler in the aerogel-containing phase-change energy-storage thermal insulation board is 10-99%.
In some embodiments, the aerogel material includes any one or a combination of two or more of silica aerogel, alumina aerogel, titania aerogel, graphene aerogel, polyimide aerogel, polyamide aerogel, and the like, but is not limited thereto. Aerogel materials employed in the present invention have very low densities (aerogel densities as low as 30 kg/m)3) And the density of the phase-change energy-storage heat-insulation board can be greatly reduced.
Further, the aerogel material may be in the form of any one or a combination of two or more of aerogel powder, aerogel particles, aerogel fibers, aerogel blocks, and the like, but is not limited thereto.
Further, the aerogel material has a nanoscale pore structure. The nanometer pore structure can restrict the phase change material in the pore, solves the problem that the phase change material leaks from the porous medium when the phase change material has a phase change behavior, and avoids adverse effects caused by uneven distribution of the phase change material.
In some embodiments, the insulating material comprises an insulating foam material, preferably comprising any one or a combination of two or more of a polyurethane foam material, a polystyrene foam material, a melamine foam material, and the like, but is not limited thereto.
In some embodiments, the uniform porous material has a honeycomb structure, preferably including any one of an aluminum honeycomb, an aramid paper honeycomb, a resin-impregnated fiberglass fabric honeycomb, and the like, but is not limited thereto.
In some embodiments, the skin structure includes any one or a combination of two or more of a glass fiber reinforced epoxy resin skin, a glass fiber reinforced unsaturated resin skin, a thermoplastic resin skin, an aluminum alloy skin, and the like, but is not limited thereto.
Further, the thickness of the skin structure is 4-10 mm.
In some embodiments, the packed layer includes at least one packing cell, each of the packing cells is formed by stacking a phase-change aerogel packing and an insulating material on top and bottom end surfaces of the phase-change aerogel packing, respectively.
Further, the combination mode of the phase-change aerogel filler and the heat insulation foam material in the uniform porous material pore channels can be a double-layer or multi-layer structure.
In conclusion, the phase change energy storage insulation board has a low heat conductivity coefficient, the long framework structure of the aerogel can make up the influence of the phase change material on the heat conduction of the whole material structure after the phase change material is introduced, and the aerogel material with a long heat transfer path is matched with the heat insulation foam to form a multilayer structure, so that the phase change energy storage insulation board can have a low density and a low heat conductivity coefficient.
The preparation method of the aerogel-containing phase change energy storage thermal insulation board provided by the embodiment of the invention comprises the following steps:
filling a phase-change material into the aerogel material with a uniform porous structure to form a phase-change aerogel filler;
compounding the phase-change aerogel filler with a heat insulation material to form a multi-layer composite structure, and filling the multi-layer composite structure serving as a filling layer into pore channels contained in a uniform porous material serving as a reinforcing phase to prepare a core plate structure;
and covering a skin layer structure on the surface of the core plate structure to obtain the aerogel-containing phase change energy storage heat preservation plate.
Further, the preparation method comprises the following steps: and bonding the core plate structure and the skin layer structure by using a resin bonding agent to prepare the aerogel-containing phase change energy storage heat insulation plate.
The invention also provides application of the aerogel-containing phase change energy storage thermal insulation board in the fields of industrial and building thermal insulation, military, aerospace or composite materials and the like.
In one embodiment of the present invention, referring to fig. 1, an aerogel-containing phase-change energy-storage insulation board includes a phase-change aerogel filler, a thermal insulation foam, a honeycomb material (i.e., the "uniform porous material") and a skin structure (i.e., the "skin structure"). Filling the phase-change material into the aerogel material with a uniform porous structure to prepare a phase-change aerogel filler; the phase-change aerogel filler and the heat-insulating foam material form a multilayer structure and are filled in the pore channels contained in the reinforced phase uniform porous material; and bonding the core plate structure encapsulated with the phase-change aerogel filler with the skin structure through a resin binder, and assembling to obtain the aerogel-containing phase-change energy-storage thermal-insulation plate.
Further, the schematic structural diagram of the filling layer in the honeycomb holes is shown in fig. 2. In addition, the combination manner of the phase-change aerogel filler and the thermal insulation foam material in the uniform porous material pore channels is not limited to the one shown in fig. 2, and can also be a double-layer or multi-layer structure.
In summary, according to the above technical solution, the phase change material is combined with the aerogel material, and the phase change material is "confined" by the extremely strong capillary force of the nano-scale pore channels, so as to avoid the adverse effects caused by the leakage of the phase change material and the uneven distribution of the phase change material when the phase change behavior occurs. In addition, the extremely low density of the aerogel can greatly reduce the density of the phase-change energy-storage heat-insulation board, and has great application prospect in the fields of industry, building heat insulation, military, aerospace, composite materials and the like.
The technical solution of the present invention is further explained below with reference to several examples, but the present invention is not limited thereto. It is to be understood, however, that within the scope of the present invention, the above-described features of the present invention and those specifically described below (e.g., in the examples) may be combined with one another to form new or preferred embodiments. Not to be reiterated herein, but to the extent of space.
The test methods described in the following examples are all conventional methods unless otherwise specified; the reagents and materials are commercially available, unless otherwise specified.
Example 1
The phase change energy storage insulation board that contains the aerogel in this embodiment includes: the core plate structure comprises a uniform resin-impregnated glass fiber fabric honeycomb material serving as a reinforcing phase, and a phase-change aerogel filler and a polyurethane foam material which are filled and distributed in the resin-impregnated glass fiber fabric honeycomb material, wherein the phase-change aerogel filler and the polyurethane foam material are compounded in a composite mode, referring to a figure 2, the phase-change aerogel filler comprises silica aerogel powder and paraffin which is filled and distributed in a pore channel of the silica aerogel powder, and the content of the paraffin is 15 wt%. Wherein, the thickness of the glass fiber reinforced epoxy resin skin structure is 4 mm.
The manufacturing method of the phase-change energy-storage thermal insulation board containing aerogel in the embodiment comprises the following steps: filling paraffin into the silica aerogel powder to prepare a phase-change aerogel filler; the phase-change aerogel filler and the polyurethane foam material form a multilayer structure and are filled in a pore channel contained in the reinforced phase uniform resin-impregnated glass fiber fabric honeycomb material; and bonding the core plate structure encapsulated with the phase-change aerogel filler with a glass fiber reinforced epoxy resin skin structure through a resin binder, and assembling to obtain the aerogel-containing phase-change energy-storage thermal-insulation plate.
The inventor of the present invention also tests the obtained phase change energy storage thermal insulation board, and the result shows that the density of the board is 70kg/m3The thermal conductivity is 0.035W/(m.K), the compressive strength is 2.5MPa, and the bending strength is 1.0 MPa.
Example 2
The phase change energy storage insulation board that contains the aerogel in this embodiment includes: the core plate structure comprises an aluminum honeycomb material serving as a reinforcing phase, and a phase-change aerogel filler and a polystyrene foam material which are filled and distributed in the aluminum honeycomb material, wherein the phase-change aerogel filler and the polystyrene foam material are combined, the phase-change aerogel filler and the polystyrene foam material can be referred to in a figure 2, the phase-change aerogel filler comprises alumina aerogel particles and hexadecane which is filled and distributed in a pore channel of the alumina aerogel particles, and the content of the hexadecane is 10 wt%. Wherein, the thickness of the glass fiber reinforced unsaturated resin skin structure is 5 mm.
The manufacturing method of the phase-change energy-storage thermal insulation board containing aerogel in the embodiment comprises the following steps: filling hexadecane into the alumina aerogel particles to prepare a phase-change aerogel filler; the phase-change aerogel filler and the polystyrene foam material form a multilayer structure and are filled in a pore channel contained in the reinforced phase aluminum honeycomb material; and bonding the core plate structure encapsulated with the phase-change aerogel filler with the glass fiber reinforced unsaturated resin skin structure through a resin binder, and assembling to obtain the aerogel-containing phase-change energy-storage thermal-insulation plate.
The inventor of the present invention also tests the obtained phase change energy storage thermal insulation board, and the result shows that the density of the board is 80kg/m3The thermal conductivity was 0.045W/(m.K), the compressive strength was 2.6MPa, and the flexural strength was 1.2 MPa.
Example 3
The phase change energy storage insulation board that contains the aerogel in this embodiment includes: the core structure comprises an aramid paper honeycomb material serving as a reinforcing phase, and a phase-change aerogel filler and a melamine foam material which are filled and distributed in the aramid paper honeycomb material, wherein the phase-change aerogel filler and the melamine foam material are compounded in a composite mode, fig. 2 can be referred to, the phase-change aerogel filler comprises polyamide aerogel powder and pentaerythritol which is filled and distributed in a pore channel of the polyamide aerogel powder, and the content of the pentaerythritol is 25 wt%. Wherein the thickness of the thermoplastic resin skin structure is 8 mm.
The manufacturing method of the phase-change energy-storage thermal insulation board containing aerogel in the embodiment comprises the following steps: filling pentaerythritol into polyamide aerogel powder to prepare a phase-change aerogel filler; the phase-change aerogel filler and the melamine foam material form a multilayer structure and are filled in a pore channel contained in the reinforced phase aramid fiber paper honeycomb material; and bonding the core plate structure encapsulated with the phase-change aerogel filler with a thermoplastic resin skin structure through a resin binder, and assembling to obtain the aerogel-containing phase-change energy-storage heat-preservation plate.
The inventor also tests the obtained phase change energy storage heat preservation plate, and the result shows that the density is 82kg/m3, the thermal conductivity is 0.048W/(m.K), the compressive strength is 2.3MPa, and the bending strength is 1.2 MPa.
Example 4
The phase change energy storage insulation board that contains the aerogel in this embodiment includes: core structure and aluminum alloy skin structure, the core structure include the fine fabric honeycomb material of resin impregnation glass as the reinforcing phase, and fill distribute in inside phase change aerogel filler and the melamine foam material of the fine fabric honeycomb material of resin impregnation glass, phase change aerogel filler and melamine foam material's compound mode can refer to figure 2, phase change aerogel filler include graphite alkene aerogel fibre and fill distribute in butanediamine in the pore of graphite alkene aerogel fibre, and the content of butanediamine is 40 wt%. Wherein, the thickness of aluminum alloy skin structure is 5 mm.
The manufacturing method of the phase-change energy-storage thermal insulation board containing aerogel in the embodiment comprises the following steps: filling butanediamine into the graphene aerogel fibers to prepare a phase-change aerogel filler; the phase-change aerogel filler and the melamine foam material form a multilayer structure and are filled in a pore channel contained in the reinforced phase resin impregnated glass fiber fabric honeycomb material; and bonding the core plate structure encapsulated with the phase-change aerogel filler with an aluminum alloy skin structure through a resin binder, and assembling to obtain the aerogel-containing phase-change energy-storage heat-preservation plate.
The inventor of the present invention also tests the obtained phase change energy storage thermal insulation board, and the result shows that the density of the board is 110kg/m3The thermal conductivity is 0.058W/(m.K), the compressive strength is 2.3MPa, and the bending strength is 1.3 MPa.
Example 5
The phase change energy storage insulation board that contains the aerogel in this embodiment includes: the core plate structure comprises a resin-impregnated glass fiber fabric honeycomb material serving as a reinforcing phase, and a phase-change aerogel filler and a polyurethane foam material which are filled and distributed in the resin-impregnated glass fiber fabric honeycomb material, wherein the phase-change aerogel filler and the polyurethane foam material are compounded, the compound mode of the phase-change aerogel filler and the polyurethane foam material can refer to a figure 2, the phase-change aerogel filler comprises titanium oxide aerogel powder and eicosane which is filled and distributed in a pore channel of the titanium oxide aerogel powder, and the content of the eicosane is 40 wt%. Wherein, the thickness of the glass fiber reinforced epoxy resin skin structure is 5 mm.
The manufacturing method of the phase-change energy-storage thermal insulation board containing aerogel in the embodiment comprises the following steps: filling eicosane into titanium oxide aerogel powder to prepare a phase-change aerogel filler; the phase-change aerogel filler and the polyurethane foam material form a multilayer structure and are filled in a pore channel contained in the reinforced phase resin-impregnated glass fiber fabric honeycomb material; and bonding the core plate structure encapsulated with the phase-change aerogel filler with a glass fiber reinforced epoxy resin skin structure through a resin binder, and assembling to obtain the aerogel-containing phase-change energy-storage thermal-insulation plate.
The inventor of the present invention also tests the obtained phase change energy storage thermal insulation board, and the result shows that the density of the board is 150kg/m3The thermal conductivity was 0.060W/(m.K), the compressive strength was 2.0MPa, and the bending strength was 1.5 MPa.
Example 6
The phase change energy storage insulation board that contains the aerogel in this embodiment includes: core structure and glass fibre reinforced epoxy resin skin structure, the core structure includes the glass fibre fabric honeycomb material of resin impregnation as the reinforcing phase, and fill distribute in inside phase change aerogel filler and the polyurethane foam material of the glass fibre fabric honeycomb material of resin impregnation, and figure 2 can be referred to phase change aerogel filler and polyurethane foam material's compound mode, phase change aerogel filler include polyimide aerogel powder and fill distribute in heptadecane in the pore of polyimide aerogel powder, and the content of heptadecane is 20 wt%. Wherein, the thickness of the glass fiber reinforced epoxy resin skin structure is 5 mm.
The manufacturing method of the phase-change energy-storage thermal insulation board containing aerogel in the embodiment comprises the following steps: filling heptadecane into the polyimide aerogel powder to prepare a phase-change aerogel filler; the phase-change aerogel filler and the polyurethane foam material form a multilayer structure and are filled in a pore channel contained in the reinforced phase resin-impregnated glass fiber fabric honeycomb material; and bonding the core plate structure encapsulated with the phase-change aerogel filler with a glass fiber reinforced epoxy resin skin structure through a resin binder, and assembling to obtain the aerogel-containing phase-change energy-storage thermal-insulation plate.
The inventor of the present invention also tests the obtained phase change energy storage thermal insulation board, and the result shows that the density of the board is 100kg/m3Thermal conductanceThe ratio was 0.050W/(m.K), the compressive strength was 2.1MPa, and the bending strength was 1.4 MPa.
Comparative example 1
The comparative example differs from example 1 in that: the traditional phase change material and the heat insulation foam material are directly compounded without adopting aerogel materials and filled into the honeycomb holes.
Through testing, the thermal conductivity of the finally obtained phase change energy storage heat preservation plate is 0.08W/(m.K).
In addition, the inventors of the present invention have also made experiments with other materials, process operations, and process conditions described in the present specification with reference to the above examples, and have obtained preferable results.
While the invention has been described with reference to illustrative embodiments, it will be understood by those skilled in the art that various other changes, omissions and/or additions may be made and substantial equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The utility model provides a contain phase change energy storage insulation board of aerogel, its characterized in that includes the core structure, and covers and locate the cortex structure on core structure surface, the core structure includes as the even porous material of reinforcing phase, and pack distribute in the inside filling layer of even porous material, the filling layer has the multilayer composite structure including phase change aerogel filler and thermal insulation material, phase change aerogel filler including the aerogel material that has even porous structure and pack distribute in the phase change material in the pore of aerogel material.
2. The aerogel-containing phase change energy storage thermal insulation board as claimed in claim 1, wherein: the aerogel containingThe density of the phase-change energy-storage heat-insulation board is 70-150kg/m3The thermal conductivity is 0.02-0.06 (W/(m.K), the compressive strength is 1.5-2.6MPa, and the shear strength is 1-1.5 MPa.
3. The aerogel-containing phase change energy storage thermal insulation board as claimed in claim 1, wherein: the phase-change material comprises any one or the combination of more than two of paraffin, hexadecane, heptadecane, eicosane, pentaerythritol and butanediamine; and/or, the content of the phase-change material in the phase-change aerogel filler is 10-50 wt%; and/or the volume content of the phase-change aerogel filler in the aerogel-containing phase-change energy-storage thermal-insulation board is 10-99%.
4. The aerogel-containing phase change energy storage thermal insulation board as claimed in claim 1, wherein: aerogel material includes the combination of any one or more than two in silica aerogel, alumina aerogel, titanium oxide aerogel, graphite alkene aerogel, polyimide aerogel, the polyamide aerogel, aerogel material's form includes the combination of any one or more than two in aerogel powder, aerogel granule, aerogel fibre, the aerogel block, and is preferred, aerogel material is the aerogel powder that has nanometer pore structure.
5. The aerogel-containing phase change energy storage thermal insulation board as claimed in claim 1, wherein: the heat insulation material comprises heat insulation foam materials, preferably comprises any one or a combination of more than two of polyurethane foam materials, polystyrene foam materials and melamine foam materials.
6. The aerogel-containing phase change energy storage thermal insulation board as claimed in claim 1, wherein: the uniform porous material has a honeycomb structure, preferably comprises any one of aluminum honeycomb, aramid paper honeycomb and resin-impregnated glass fiber fabric honeycomb; and/or the material of the skin layer structure comprises any one or combination of more than two of glass fiber reinforced epoxy resin, glass fiber reinforced unsaturated resin, thermoplastic resin and aluminum alloy, and the thickness of the skin layer structure is 4-10 mm.
7. The aerogel-containing phase change energy storage thermal insulation board as claimed in claim 1, wherein: the filling layer comprises at least one filling unit, each filling unit is formed by mutually laminating phase-change aerogel filling materials and heat insulation materials, and the heat insulation materials are respectively arranged on the top end face and the bottom end face of the phase-change aerogel filling materials.
8. The preparation method of the aerogel-containing phase-change energy-storage thermal insulation board as claimed in any one of claims 1 to 7, which is characterized by comprising the following steps:
filling a phase-change material into the aerogel material with a uniform porous structure to form a phase-change aerogel filler;
compounding the phase-change aerogel filler with a heat insulation material to form a multi-layer composite structure, and filling the multi-layer composite structure serving as a filling layer into pore channels contained in a uniform porous material serving as a reinforcing phase to prepare a core plate structure;
and covering a skin layer structure on the surface of the core plate structure to obtain the aerogel-containing phase change energy storage heat preservation plate.
9. The method according to claim 8, characterized by comprising: and bonding the core plate structure and the skin layer structure by using a resin bonding agent to prepare the aerogel-containing phase change energy storage heat insulation plate.
10. Use of the aerogel-containing phase change energy storage insulation panel of any of claims 1-7 in industrial and building insulation, military, aerospace or composite fields.
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