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CN114590001B - Novel aerogel composite heat insulation pad with folding structure - Google Patents

Novel aerogel composite heat insulation pad with folding structure Download PDF

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Publication number
CN114590001B
CN114590001B CN202210140240.6A CN202210140240A CN114590001B CN 114590001 B CN114590001 B CN 114590001B CN 202210140240 A CN202210140240 A CN 202210140240A CN 114590001 B CN114590001 B CN 114590001B
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CN
China
Prior art keywords
folding
folded
sub
aerogel composite
core material
Prior art date
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Application number
CN202210140240.6A
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Chinese (zh)
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CN114590001A (en
Inventor
杨浩
刘佩佩
罗肖宁
常稳
张祖琼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Aibiaihe New Material Co ltd
Original Assignee
Henan Aibiaihe New Material Co ltd
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Priority to CN202210140240.6A priority Critical patent/CN114590001B/en
Publication of CN114590001A publication Critical patent/CN114590001A/en
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    • 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
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    • H01—ELECTRIC ELEMENTS
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    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

The invention discloses an aerogel composite heat insulation pad with a novel folding structure, which comprises an aerogel composite heat insulation core material and a packaging layer, wherein the aerogel composite heat insulation core material comprises at least one aerogel composite heat insulation sub-core material, and each aerogel composite heat insulation sub-core material is of a folding structure. The single sheet of the invention can be folded in a folding way I and/or a folding way II; through the effective combination of folding mode I and/or folding mode II, can use the aerogel felt of standard thickness to prepare the aerogel composite heat insulating mattress product of different thickness specifications, be favorable to the standardized production and the cost reduction popularization of aerogel felt. The heat-insulating core material prepared by adopting the folding mode can avoid the problem of interlayer dislocation of the heat-insulating sub-core material prepared by adopting the direct lamination mode during packaging.

Description

Novel aerogel composite heat insulation pad with folding structure
Technical Field
The invention belongs to the technical field of heat insulation, and particularly relates to an aerogel composite heat insulation pad with a novel folding structure.
Background
The new energy automobile accords with the environment-friendly requirement of green low carbon advocated by the nation, the market share of the new energy automobile is increased year by year, and the application range is larger and larger. The lithium ion power battery has the characteristics of high energy density, high charge and discharge speed, long service life and the like, so the lithium ion power battery is widely applied to new energy automobiles as a power source. However, when the lithium ion battery is impacted, needled or short-circuited inside the battery, the heat is rapidly increased, so that thermal runaway is caused, and finally fire or explosion is caused. And when thermal runaway occurs in a single cell, heat can be quickly transferred to adjacent cells, so that a series of chain reactions are caused, and the thermal runaway of the whole module and even the whole battery pack is caused.
To address this risk, aerogel insulation pads are commonly used in current cell modules as insulation between cells to retard heat transfer during thermal runaway. The aerogel blanket that aerogel heat insulating mattress traditional preparation mode directly used corresponding thickness prepares through the pressure to required thickness, and this mode needs to develop the aerogel blanket core material of corresponding thickness to the heat insulating mattress of different thickness, has restricted the standardization and the uniformity of aerogel blanket production, is unfavorable for the cost of reducing and the popularization and application on a large scale of aerogel blanket production.
Disclosure of Invention
In view of the shortcomings described in the prior art, the present invention provides a novel aerogel composite insulation blanket of a folded construction.
The technical scheme adopted by the invention is as follows:
the utility model provides a novel aerogel composite heat insulating mattress of beta structure, includes aerogel composite heat insulating core material and encapsulation layer, aerogel composite heat insulating core material includes at least one aerogel composite heat insulating sub-core material, every aerogel composite heat insulating sub-core material is beta structure.
As a preferable scheme of the invention, each aerogel composite heat insulation sub-core material is folded into a folding structure, and then the folded aerogel composite heat insulation core material is packaged by a packaging layer; the packaging film material is used for the packaging layer which is folded and then packaged; or the packaging layer firstly packages each aerogel composite heat insulation sub-core material on one side or two sides, then folds each packaged aerogel composite heat insulation sub-core material into a folding structure, and the packaging layer which is packaged firstly and folded is at least one of a packaging film and an organic or inorganic packaging coating, and can be directly used after folding.
As a preferable scheme of the invention, the folding structure is formed by folding in a folding mode I, wherein the folding mode I is that the end part I of the aerogel composite heat insulation sub-core material is folded inwards or outwards at least once to form a folding sub-structure I, and the folding sub-structure I is provided with at least one folding layer I; the end part II of the aerogel composite heat insulation sub-core material is folded inwards or outwards at least once to form a folding sub-structure II, and the folding sub-structure II is provided with at least one folding layer II; the rest part of the aerogel composite heat insulation sub-core material forms a folding base layer, and the folding sub-structure I and the folding sub-structure II are positioned on the same side or different sides of the folding base layer; and the sum of the width of the folded layer I and the width of the folded layer II is equal to the width of the folded base layer. The folded base layer can be in the middle of the folded substructure I and the folded substructure II, or can be above or below; depending on the particular folding direction.
As a preferred embodiment of the invention, the width of the folded layer I is the same as the width of the folded layer II.
As a preferred embodiment of the present invention, the folded substructure I has at least two folded layers I; the folded substructure II has at least one folded layer II.
As a preferable scheme of the invention, the folding structure is formed by combining and folding a folding mode I and a folding mode II, and the folding substructure obtained by the folding mode I is folded according to the folding mode II; the folding mode II is that the aerogel composite heat insulation sub core material is folded at least once along the center line of the end face; and the folding times of the folding mode II are not less than those of the folding mode I. The two different folding modes are combined to obtain the folding structure, so that aerogel composite heat insulation pad products with different thickness specifications can be prepared, and standardized production and cost reduction popularization of aerogel felts are facilitated.
As a preferable scheme of the invention, the folding structure is formed by folding in a folding mode II, wherein the folding mode II is that the aerogel composite heat insulation core material is folded at least once along the center line of the end face.
As a preferable scheme of the invention, the folding mode II is that the aerogel composite heat insulation sub-core material is folded at least twice along the center line of the end surface, and the corresponding center lines of the two adjacent folds are parallel or vertical; the core material obtained after being folded once is folded along the central line, and can be folded for multiple times to obtain folding structures with different thicknesses. When the central lines of the two adjacent foldings are parallel, the directions of the two adjacent foldings can be the same or opposite; when the center lines of the two adjacent foldings are vertical, the directions of the two adjacent foldings are vertical.
As a preferable scheme of the invention, the thickness of the aerogel composite heat insulation sub-core material is 0.01-10mm.
As a preferred embodiment of the present invention, the aerogel composite insulation sub-core employs an aerogel blanket/film or a felt mat impregnated with aerogel material.
The aerogel felt is one or more of PI aerogel felt, polyacrylonitrile aerogel felt and other organic aerogel felts. The aerogel film is one or more of organic aerogel films.
The aerogel material is single-component aerogel or multi-component aerogel; one-component aerogels comprise SiO 2 Aerogel, al 2 O 3 Aerogel, tiO 2 One or more of organic and inorganic aerogel materials such as aerogel, carbon aerogel, polyurethane aerogel, graphene aerogel, and the like; multicomponent aerogels include, but are not limited to, siO 2 /Al 2 O 3 Composite aerogel, siO 2 /Al 2 O 3 /TiO 2 Composite aerogel.
The felt pad comprises one or more of organic and inorganic fiber felt materials such as a pre-oxidized fiber felt, a glass fiber felt, a ceramic fiber felt, an alumina fiber felt, a zirconia fiber felt, a high silica fiber felt, an aramid fiber felt, a mullite fiber felt, a basalt fiber felt, a carbon fiber felt, a spandex fiber felt, a polyester fiber felt, a nylon fiber felt, a PET fiber felt, a non-woven fabric, a fiber paper, foam and the like or a foam material with an open pore structure.
According to the invention, at least one aerogel composite heat insulation sub-core material is adopted, each aerogel composite heat insulation sub-core material is processed by adopting a single-sheet folding mode, and the aerogel composite heat insulation pad with excellent heat insulation performance is prepared by holding the packaging layer.
And the single sheet may be folded in either fold type I and/or fold type II; through the effective combination of folding mode I and/or folding mode II, can use the aerogel felt of standard thickness to prepare the aerogel composite heat insulating mattress product of different thickness specifications, be favorable to the standardized production and the cost reduction popularization of aerogel felt. The heat-insulating core material prepared by adopting the folding mode can avoid the problem of interlayer dislocation of the heat-insulating sub-core material prepared by adopting the direct lamination mode during packaging.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an aerogel composite insulation sub-core material formed by folding the aerogel composite insulation sub-core material in a single way in the same direction to form a folded layer I, a folded layer II and a folded base layer.
Fig. 2 is a schematic structural diagram of an aerogel composite insulator core after being folded in a folding manner II.
Fig. 3 is a schematic structural diagram of an aerogel composite insulation sub-core after being folded in a folding manner I and a folding manner II in sequence.
Fig. 4 is a schematic structural diagram of the structure of fig. 3 after the film is sealed.
Fig. 5 is a schematic structural diagram of an aerogel composite insulation sub-core material folded in one or more folds in the same direction in a folding manner I to form a folded layer I, a folded layer II, and a folded base layer.
Fig. 6 is a schematic structural diagram of the aerogel composite insulation sub-core of fig. 5 after being folded in a folding manner II.
Fig. 7 is a schematic structural diagram of the structure of fig. 6 after the sealing.
FIG. 8 is a schematic structural diagram of an aerogel composite insulation sub-core that is folded in a single fold in opposite directions using fold I to form a folded layer I, a folded layer II, and a folded base layer.
Fig. 9 is a schematic structural view of the aerogel composite insulation sub-core of fig. 8 after being folded in a folding manner II.
Fig. 10 is a schematic structural diagram of an aerogel composite insulation sub-core after being folded 2 times in the same direction in a folding manner II.
Fig. 11 is a schematic structural diagram of an aerogel composite insulation sub-core after single-sided encapsulation, which is folded in a folding manner I and a folding manner II in sequence.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
Example 1:
the utility model provides a novel aerogel composite heat insulating mattress of beta structure, includes aerogel composite heat insulating core material and encapsulation layer, aerogel composite heat insulating core material include that at least one thickness is 0.01-10 mm's aerogel composite heat insulating sub-core material 1, every aerogel composite heat insulating sub-core material is beta structure, this embodiment adopts an aerogel composite heat insulating sub-core material. And the aerogel composite heat insulation sub-core material is folded and then packaged by a packaging layer, wherein the packaging layer comprises a film layer 2 and a glue layer 3.
The film layer comprises a PET film, a PI film, a PEN film, a PVC film, a PE film, a PP film, a PC film, a PU film, a metal foil and the like; because the two layers of film layers are the upper layer and the lower layer, the two film layers can adopt the same structure or different structures, and the film layers are connected with the aerogel composite heat insulation core material through the adhesive layer. The adhesive layer adopts acrylic acid adhesive and/or epoxy adhesive.
In this embodiment, the aerogel composite insulation sub-core material is an aerogel blanket/film or a felt pad impregnated with aerogel material.
The aerogel felt is one or more of PI aerogel felt, polyacrylonitrile aerogel felt and other organic aerogel felts. The aerogel film is one or more of organic aerogel films.
The aerogel material is single-component aerogel or multi-component aerogel; one-component aerogels comprise SiO 2 Aerogel, al 2 O 3 Aerogel, tiO 2 One or more of organic and inorganic aerogel materials such as aerogel, carbon aerogel, polyurethane aerogel, graphene aerogel, and the like; multicomponent aerogels include, but are not limited to, siO 2 /Al 2 O 3 Composite aerogel, siO 2 /Al 2 O 3 /TiO 2 Composite aerogel.
The felt pad comprises one or more of organic and inorganic fiber felt materials such as a pre-oxidized fiber felt, a glass fiber felt, a ceramic fiber felt, an alumina fiber felt, a zirconia fiber felt, a high silica fiber felt, an aramid fiber felt, a mullite fiber felt, a basalt fiber felt, a carbon fiber felt, a spandex fiber felt, a polyester fiber felt, a nylon fiber felt, a PET fiber felt, a non-woven fabric, fiber paper, foam and the like or a foaming material with an open pore structure.
In this embodiment, the folding structure is formed by folding in a folding manner I, where the folding manner I is that an end portion I of the aerogel composite heat insulation sub-core material is folded inwards or outwards once to form a folding sub-structure I, and the folding sub-structure I has at least one folding layer IA; the end part II of the aerogel composite heat insulation sub-core material is folded inwards or outwards at least once to form a folding sub-structure II, and the folding sub-structure II is provided with at least one folding layer IB; the rest part of the aerogel composite heat insulation sub-core material forms a folding base layer C, and the folding sub-structure I and the folding sub-structure II are positioned on the same side or different sides of the folding base layer C; and the sum of the width of the folded layer IA and the width of the folded layer IB is equal to the width of the folded base layer C. The folded base layer C may be in the middle of the folded sub-structure I and the folded sub-structure II, or may be above or below; depending on the particular folding direction.
The specific folding manner may be as shown in fig. 1, where the end portion I of the aerogel composite heat insulation sub-core material is folded inwards once to form a folded sub-structure I, where the folded sub-structure I has a folded layer IA; the end part II of the aerogel composite heat insulation sub-core material is folded inwards once to form a folded sub-structure II, and the folded sub-structure II is provided with a folded layer IB; the remainder of the aerogel composite insulation sub-core material comprises a folded base layer C, and the folded sub-structure I and the folded sub-structure II are positioned on the same side of the folded base layer C.
As shown in fig. 5, the end part I of the aerogel composite heat insulation sub-core material is folded inwards twice to form a folded sub-structure I, wherein the folded sub-structure I is provided with two folded layers IA; the end part II of the aerogel composite heat insulation sub-core material is folded inwards once to form a folded sub-structure II, and the folded sub-structure II is provided with a folded layer IB; the remainder of the aerogel composite insulation sub-core material comprises a folded base layer C, and the folded sub-structure I and the folded sub-structure II are positioned on the same side of the folded base layer C.
Of course, as shown in fig. 8, the end portion I of the aerogel composite heat insulation sub-core material is folded inwards once to form a folded sub-structure I, where the folded sub-structure I has a folded layer IA; the end part II of the aerogel composite heat insulation sub-core material is folded outwards once to form a folded sub-structure II, and the folded sub-structure II is provided with a folded layer IB; the rest of the aerogel composite heat insulation sub-core material forms a folding base layer C, and the folding sub-structure I and the folding sub-structure II are positioned on two sides of the folding base layer C. Sealing with packaging layer after folding.
Of course, the aerogel composite heat insulation sub-core material can be packaged and folded firstly, the packaging layer used for packaging firstly is at least one of a packaging film and an organic or inorganic flame retardant coating, the packaging of the aerogel composite heat insulation sub-core material can be single-sided packaging or double-sided packaging, the specific folding mode is the same as the folding mode of adopting the packaging after the folding, and the aerogel composite heat insulation sub-core material can be directly used after the folding is completed.
Example 2:
the utility model provides a novel aerogel composite heat insulating mattress of beta structure, includes aerogel composite heat insulating core material and encapsulation layer, aerogel composite heat insulating core material include that at least one thickness is 0.01-10 mm's aerogel composite heat insulating sub-core material 1, every aerogel composite heat insulating sub-core material is beta structure, this embodiment adopts an aerogel composite heat insulating sub-core material. And the aerogel composite heat insulation sub-core material is folded and then packaged by a packaging layer, wherein the packaging layer comprises a film layer 2 and a glue layer 3.
The folding structure is formed by folding in a folding mode II, and the folding mode II is that the aerogel composite heat insulation core material is folded at least once along the center line of the end face.
The specific doubling-up times are carried out according to actual needs, as shown in fig. 2, namely, the aerogel composite heat insulation sub-core material is doubled up once along the central line;
of course, as shown in fig. 10, the aerogel composite heat insulation sub-core material is a core material obtained by folding once along the center line, and is further folded once along the center line parallel to the center line folded for the first time, and of course, when folded again, the direction of the aerogel composite heat insulation sub-core material can be the same as or opposite to that of the previous folding, and the corresponding center lines can be vertical.
That is to say, the core material obtained after being folded once is folded along the central line, and can be folded for multiple times to obtain folding structures with different thicknesses. When the central lines of the two adjacent foldings are parallel, the directions of the two adjacent foldings can be the same or opposite; when the central lines of the two adjacent foldings are vertical, the directions of the two adjacent foldings are vertical, and the packaging layer is used for sealing after the foldings are completed.
Of course, the aerogel composite heat insulation sub-core material can be packaged and folded firstly, the packaging layer used for packaging firstly is at least one of a packaging film and an organic or inorganic flame retardant coating, the packaging of the aerogel composite heat insulation sub-core material can be single-sided packaging or double-sided packaging, the specific folding mode is the same as the folding mode of adopting the packaging after the folding, and the aerogel composite heat insulation sub-core material can be directly used after the folding is completed.
The remainder was the same as in example 1.
Example 3:
the utility model provides a novel aerogel composite heat insulating mattress of beta structure, includes aerogel composite heat insulating core material and encapsulation layer, aerogel composite heat insulating core material include that at least one thickness is 0.01-10 mm's aerogel composite heat insulating sub-core material 1, every aerogel composite heat insulating sub-core material is beta structure, this embodiment adopts an aerogel composite heat insulating sub-core material.
And the aerogel composite heat insulation sub-core material is folded and then packaged by a packaging layer, wherein the packaging layer comprises a film layer 2 and a glue layer 3.
The folding structure is formed by combining and folding a folding mode I and a folding mode II, and the folding substructure obtained in the folding mode I is folded according to the folding mode II; the folding mode II is that the aerogel composite heat insulation sub core material is folded at least once along the center line of the end face; and the folding times of the folding mode II are not less than those of the folding mode I. The two different folding modes are combined to obtain the folding structure, so that aerogel composite heat insulation pad products with different thickness specifications can be prepared, and standardized production and cost reduction popularization of aerogel felts are facilitated.
For example, as shown in fig. 3, the end portion I of the aerogel composite heat insulation sub-core material is folded inwards once to form a folded sub-structure I, and the folded sub-structure I has a folded layer IA; the end part II of the aerogel composite heat insulation sub-core material is folded inwards once to form a folded sub-structure II, and the folded sub-structure II is provided with a folded layer IB; the rest part of the aerogel composite heat insulation sub-core material forms a folding base layer C, and the folding sub-structure I and the folding sub-structure II are positioned on the same side of the folding base layer C; and then folded in half along the center line of the folded base layer C in the folding manner II, and the packaging structure is shown in figure 4 after the folding is completed.
Of course, as shown in fig. 6, the end portion I of the aerogel composite insulation sub-core is folded inwards twice to form a folded sub-structure I, which has two folded layers IA; the end part II of the aerogel composite heat insulation sub-core material is folded inwards once to form a folded sub-structure II, and the folded sub-structure II is provided with a folded layer IB; the remaining part of the aerogel composite heat insulation sub-core material forms a folding base layer C, the folding sub-structure I and the folding sub-structure II are positioned on the same side of the folding base layer C, and then folded once along the central line of the folding base layer C, and finally packaged by a packaging layer, as shown in figure 7.
Of course, as shown in fig. 9, the end portion I of the aerogel composite heat insulation sub-core material is folded inwards once to form a folded sub-structure I, where the folded sub-structure I has a folded layer IA; the end part II of the aerogel composite heat insulation sub-core material is folded outwards once to form a folded sub-structure II, and the folded sub-structure II is provided with a folded layer IB; the rest of the aerogel composite heat insulation sub-core material forms a folding base layer C, and the folding sub-structure I and the folding sub-structure II are positioned on two sides of the folding base layer C. Then folded once again along the center line of the folded base layer C and finally encapsulated with an encapsulation layer, the remainder being the same as in example 1.
Of course, the aerogel composite heat insulation sub-core material can be packaged and folded firstly, the packaging layer used for packaging firstly is at least one of a packaging film and an organic or inorganic flame retardant coating, the packaging of the aerogel composite heat insulation sub-core material can be single-sided packaging or double-sided packaging, the specific folding mode is the same as the folding mode of adopting the packaging after the folding, and the aerogel composite heat insulation sub-core material can be directly used after the folding is completed.
Now, a structure diagram of single-sided coating refolding is provided, as shown in fig. 11, after the aerogel composite heat-insulating sub-core material is packaged by using a coating 4 on one side, the end part I of the aerogel composite heat-insulating sub-core material is folded inwards once to form a folded sub-structure I, and the folded sub-structure I is provided with a folded layer IA; the end part II of the aerogel composite heat insulation sub-core material is folded outwards once to form a folded sub-structure II, and the folded sub-structure II is provided with a folded layer IB; the rest part of the aerogel composite heat insulation sub-core material forms a folding base layer C, and the folding sub-structure I and the folding sub-structure II are positioned on the same side of the folding base layer C; and then folded in half once along the center line of the folded base layer C in the folding manner II. Can be directly used after folding.
In the description of the present specification, reference to the terms "one embodiment," "example," "specific example," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (7)

1. The utility model provides a beta structure's compound heat insulating mattress of aerogel, includes the compound heat insulating core material of aerogel and encapsulation layer (2), its characterized in that: the aerogel composite heat insulation core material comprises at least one aerogel composite heat insulation sub-core material (1), and each aerogel composite heat insulation sub-core material is of a folding structure;
the folding structure is formed by combining and folding a folding mode I and a folding mode II, wherein the folding mode I is formed by inwards or outwards folding the end part I of the aerogel composite heat insulation sub-core material at least once to form a folding sub-structure I, and the folding sub-structure I is provided with at least one folding layer IA; the end part II of the aerogel composite heat insulation sub-core material is folded inwards or outwards at least once to form a folding sub-structure II, and the folding sub-structure II is provided with at least one folding layer IB; the rest part of the aerogel composite heat insulation sub-core material forms a folding base layer C, and the folding sub-structure I and the folding sub-structure II are positioned on the same side or different sides of the folding base layer C; and the sum of the width of the folded layer IA and the width of the folded layer IB is equal to the width of the folded base layer C;
the folding mode II is that the aerogel composite heat insulation sub core material is folded at least once along the center line of the end face; folding the folding substructure obtained in the folding mode I according to the folding mode II; and the folding times of the folding mode II are not less than those of the folding mode I.
2. The aerogel composite insulation blanket of a folded structure of claim 1, wherein: each aerogel composite heat insulation sub-core material is folded into a folding structure, and then the folded aerogel composite heat insulation core material is packaged by a packaging layer; or the packaging layer firstly packages each aerogel composite heat insulation sub-core material, and then folds each packaged aerogel composite heat insulation sub-core material into a folding structure.
3. The aerogel composite insulation blanket of a folded structure of claim 1, wherein: the width of the folded layer IA is the same as the width of the folded layer IB.
4. The aerogel composite insulation blanket of a folded structure of claim 1, wherein: the folding substructure I is provided with at least two folding layers IA; the folded substructure II has at least one folded layer IB.
5. The aerogel composite insulation blanket of a folded structure of claim 1, wherein: the folding mode II is that the aerogel composite heat insulation sub core material is folded at least twice along the center line of the end face, and the corresponding center lines of the two adjacent folds are parallel or perpendicular.
6. The aerogel composite insulation blanket of any of claims 1-5, wherein: the thickness of the aerogel composite heat insulation core material is 0.01-10mm.
7. The aerogel composite insulation blanket of claim 6, wherein: the aerogel composite heat insulation sub-core material adopts aerogel felt/film.
CN202210140240.6A 2022-02-16 2022-02-16 Novel aerogel composite heat insulation pad with folding structure Active CN114590001B (en)

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