CN111844995A - Heat-preservation and heat-insulation composite cloth and preparation method thereof - Google Patents

Heat-preservation and heat-insulation composite cloth and preparation method thereof Download PDF

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Publication number
CN111844995A
CN111844995A CN202010717285.6A CN202010717285A CN111844995A CN 111844995 A CN111844995 A CN 111844995A CN 202010717285 A CN202010717285 A CN 202010717285A CN 111844995 A CN111844995 A CN 111844995A
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China
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heat
insulation composite
preservation
aerogel
cloth
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Chinese (zh)
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付振
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Shenzhen Shunchengxin Electronic Materials Co Ltd
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Shenzhen Shunchengxin Electronic Materials Co Ltd
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Priority to CN202010717285.6A priority Critical patent/CN111844995A/en
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    • 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
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B3/08—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 added members at particular parts
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
    • B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • B32B9/025—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch comprising leather
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/046—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • 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
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • 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

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)
  • Thermal Insulation (AREA)

Abstract

The invention discloses a heat-preservation and heat-insulation composite cloth, which comprises a flexible substrate layer and a fabric layer; the flexible substrate layer is the foaming sponge that has silicon dioxide aerogel for the complex. The invention also discloses a preparation method of the heat-preservation and heat-insulation composite cloth. The heat-preservation and heat-insulation composite cloth provided by the embodiment of the invention can effectively prevent the aerogel material from falling off, and improves the contact affinity of the material and a human body; meanwhile, the produced cloth has the softness of the foaming sponge and good comfort; the mass ratio of the silicon dioxide aerogel on the flexible base material layer is greatly improved, and the heat preservation and insulation effect of the composite cloth is better.

Description

Heat-preservation and heat-insulation composite cloth and preparation method thereof
Technical Field
The invention relates to the field of heat preservation and insulation fabrics, in particular to a heat preservation and insulation composite fabric and a preparation method thereof.
Background
Aerogel material preparation forms the cloth, compares with traditional thermal-insulated cloth that keeps warm, will possess lighter quality, less volume and reach equivalent adiabatic effect, and simultaneously, aerogel material still has super hydrophobic characteristics, makes the cloth after, still can avoid because the moisture keeps warm to insulate against heat the cloth and produces the influence.
The existing aerogel composite material is formed by compounding aerogel and a reinforced fiber material, for example, patent application 201910782729.1 discloses a lightweight silica aerogel composite thermal insulation fabric and a preparation method thereof, which is formed by compounding silica aerogel and viscose fiber.
The aerogel material is fixed by the reinforced fiber material through gaps among the fibers, and other microcosmic acting forces do not exist between the reinforced fiber material and the aerogel material, so that a great amount of aerogel dust flies out of the aerogel composite material in the using process; in addition, the viscose fiber used as the reinforced fiber material makes the prepared aerogel composite material harder, and the aerogel composite material is not soft enough as cloth and has poor comfort; the aerogel material is fixed by the reinforcing fiber material through gaps among the fibers, the mass ratio of the aerogel to the reinforcing fibers is about 1:1, and the content of the aerogel is insufficient.
Disclosure of Invention
In order to solve the technical problems, the application provides a heat-preservation and heat-insulation composite fabric and a preparation method thereof.
The application provides a heat-preservation and heat-insulation composite cloth which comprises a flexible base material layer and a fabric layer; the flexible substrate layer is the foaming sponge that has silicon dioxide aerogel for the complex.
As an embodiment of the heat-preservation and heat-insulation composite cloth provided by the invention, the foaming sponge is of an open pore structure, and the pore diameter is 10-500 mu m.
As an embodiment of the heat preservation and insulation composite cloth provided by the invention, the thickness of the foamed sponge is 0.3-5.0 mm, and the density is 5-40 Kg/m for carrying out thin film growing.
As an embodiment of the thermal insulation composite cloth provided by the invention, the silica aerogel is SiO2-TiO2And (3) compounding the aerogel.
As an embodiment of the heat-preservation and heat-insulation composite cloth provided by the invention, the mass ratio of the silicon dioxide aerogel to the flexible base material layer is 70-90%, and the normal-temperature heat conductivity coefficient of the heat-preservation and heat-insulation composite cloth is 0.015-0.018W/(m.K).
In one embodiment of the heat-insulating composite fabric provided by the present invention, a mesh fabric is bonded to both surfaces of the foamed sponge of the flexible substrate layer, and the mesh fabric is located between the flexible substrate layer and the fabric layer.
As an embodiment of the heat preservation and insulation composite cloth provided by the invention, the mesh cloth is 0.05-0.3 mm thick and made of terylene or polyester material; the mesh cloth and the flexible substrate layer are bonded through a hot melt adhesive; the hot melt adhesive is polyurethane hot melt adhesive, and the thickness of the hot melt adhesive is 0.01-0.1 mm.
The application provides a preparation method of a heat preservation and insulation composite cloth, which comprises the following steps:
1) preparing: at least one side of the foaming sponge is padded with mesh cloth;
2) preparing aerogel from the foaming sponge with the mesh cloth on the pad by a sol-gel method to obtain foaming sponge filled with silicon dioxide aerogel;
3) taking out the eyelet fabric;
4) and (3) attaching an upper fabric layer to the surface of the foaming sponge compounded with the silicon dioxide aerogel.
As an embodiment of the preparation method provided by the invention, the mesh fabric is 0.05-0.3 mm thick and made of terylene or polyester materials.
The application also provides another preparation method of the heat-preservation and heat-insulation composite cloth, which comprises the following steps:
1) preparing: adhering mesh cloth to two sides of the foaming sponge;
2) preparing aerogel from the foaming sponge compounded with the mesh fabric by a sol-gel method to obtain foaming sponge filled with silicon dioxide aerogel;
3) and (3) attaching an upper fabric layer to the surface of the foaming sponge compounded with the silicon dioxide aerogel.
Compared with the prior art, the invention has the following beneficial effects:
the heat-preservation and heat-insulation composite cloth provided by the embodiment of the invention can effectively prevent the aerogel material from falling off, and improves the contact affinity of the material and a human body; meanwhile, the produced cloth has the softness of the foaming sponge and good comfort; the mass ratio of the silicon dioxide aerogel on the flexible base material layer is greatly improved, and the heat preservation and insulation effect of the composite cloth is better.
Drawings
Fig. 1 is a schematic structural diagram of a heat preservation and insulation composite fabric according to a first embodiment of the present invention;
fig. 2 is a structural schematic diagram of a heat preservation and insulation composite fabric according to a third embodiment of the present invention.
The attached drawings are marked as follows:
flexible substrate layer 1, precoat 2, eyelet fabric 3.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example one
As shown in fig. 1, the present invention provides a thermal insulation composite fabric, which includes a flexible substrate layer 1 as a core layer, and a fabric layer 2 as a surface layer.
The flexible substrate layer 1 of this application embodiment is the foaming sponge that has silicon dioxide aerogel for the complex.
Compared with the prior art that the foam sponge with the open pore structure is used as the core base material, the heat-insulation composite cloth is lighter and is softer and more comfortable; the foaming sponge is porous and light, after the silicon dioxide aerogel is compounded, the aerogel is combined in the pores of the foaming sponge, and compared with the existing fiber material composite material, the escape of aerogel dust is greatly reduced; the mass ratio of the silicon dioxide aerogel on the flexible base material layer 1 is greatly improved, and the heat preservation and insulation effect of the composite cloth is better.
The foaming sponge of this application embodiment is open cell structure, and silica aerogel is kept in open cell structure. The foamed sponge is similar to a sponge, but has larger density and smaller pore diameter than a common sponge, and the pore diameter is 10-500 mu m. The pore diameter in this range can prevent the silica aerogel from falling out of the pores.
And (3) carrying out dry distillation on the foamed sponge according to the density of 5-40 Kg/m. The thickness of the foaming sponge is 0.3-5.0 mm.
The silicon dioxide aerogel has special microstructures such as a three-dimensional nanoparticle framework (framework particles are 2-5 nm), a high specific surface area (about 1000 square meters per gram), nanometer-scale holes (about 20nm), a low density (0.003-0.15 g/cm) and the like, and has unique properties in the aspects of thermal, optical, electrical, acoustic and the like. In terms of thermal properties, the nano-porous structure of the silica aerogel can effectively inhibit solid-state heat conduction and gas heat conduction, has excellent heat insulation characteristics, and is a solid material (0.01-0.03W/(m.K) at normal temperature) with the lowest thermal conductivity which is generally accepted at present.
More preferably, the silica aerogel of the present application is SiO2-TiO2And (3) compounding the aerogel.
The mass ratio of the silicon dioxide aerogel in the flexible base material layer 1 of the heat-preservation and heat-insulation composite cloth is 70% -90%.
The heat-insulating composite cloth has a normal-temperature heat conductivity coefficient of 0.015-0.018W/(m.K).
The face stock layer 2 may be a TPU film. The TPU film has good waterproof and air permeability, the thickness of the TPU film is 0.01-0.03mm, and the moisture permeability is 3000 plus 6000 g/(. square meter.24 h) under the conditions of the temperature of 38 ℃ and the relative humidity of 90 percent; the moisture permeability of the heat-insulating composite cloth after being attached is 1300-2000 g/square meter 24 h. The TPU film can not only ensure the air permeability of the fabric, but also solve the appearance problem.
It is understood that the fabric layer 2 can be made of not only TPU film, but also ordinary cloth, leather, nylon cloth, synthetic cloth, etc., and can be specifically customized according to the needs of customers.
Compared with non-woven fabrics or other fabrics with thinner thickness, the TPU film has better air permeability and is more compact, so that the composite fabric is not pulverized and is softer. The TPU film enables the super heat-insulating cloth to be waterproof and breathable, and the heat-insulating performance is not influenced by the existence of water. Meanwhile, the roll material has the performance of water washing and has the basic characteristics of common cloth.
The fabric layer 2 may be attached to the flexible base material layer 1 by an adhesive layer.
Example two
The embodiment provides a preparation method of a heat-preservation and heat-insulation composite fabric, which comprises the following steps:
1) preparing: a mesh cloth 3 is padded on at least one surface of the foaming sponge;
2) preparing aerogel from the foamed sponge lined with the eyelet fabric 3 by a sol-gel method to obtain foamed sponge filled with silica aerogel;
3) taking out the eyelet fabric 3;
4) the upper fabric layer 2 is attached to the surface of the foaming sponge compounded with the silicon dioxide aerogel.
The applicant finds that the foaming sponge is thin, and the foaming sponge has poor toughness and is easy to deform or even damage in the process of soaking the sol in the foaming sponge roll material. For improvement, in the present invention, an eyelet fabric 3 is laid on at least one side of a foam sponge as a support to hold a foam sponge base material. The two sides of the base material are not adhered with the eyelet fabric, but a layer of eyelet fabric is padded to support the base material in the production process. The foaming sponge substrate has a power of dragging at the in-process of preparing into the aerogel, and the toughness of foaming sponge substrate self is not enough, and the purpose of this one deck eyelet fabric of liner is exactly guaranteeing at the in-process of dragging, can not make the substrate fracture, and the structure of mesh has guaranteed the permeability of preparation aerogel process in addition.
In the preparation method, the foaming sponge is a roll material. The mesh cloth and the base material are rolled together.
After the preparation of the foamed sponge filled with silica aerogel, the eyelet fabric 3 may be taken out before the facing material layer 2 is attached.
The thickness of the mesh cloth 3 is 0.05-0.3 mm, and the material of the mesh cloth 3 can be terylene or polyester material.
A more specific example is as follows:
lining a layer of terylene mesh cloth 3 with the thickness of 0.1mm on the surface of the foaming sponge roll with the thickness of 0.5mm and the density of 10Kg/m for carrying out thin planting;
preparing aerogel from the foamed sponge with the lined mesh fabric 3 by a sol-gel method to obtain a foamed sponge roll filled with silica aerogel, wherein the mass of the silica aerogel accounts for about 80%;
taking down the eyelet fabric 3;
and (3) uniformly attaching 0.01mm of TPU (thermoplastic polyurethane) film to two sides of the prepared sponge aerogel roll material to obtain the super heat-insulating cloth.
The prepared super heat-insulating cloth has the thickness of 0.55mm, the normal-temperature heat conductivity coefficient of 0.017W/(m.K) and the moisture permeability of 1500-2000 g/(. square meter.24 h).
EXAMPLE III
The embodiment provides another heat-preservation and heat-insulation composite cloth and a preparation method thereof.
As shown in fig. 2, the heat-insulating composite fabric of the embodiment of the present application has mesh cloths 3 bonded to both surfaces of a foam sponge as a flexible substrate layer 1, and the mesh cloths 3 are located between the flexible substrate layer 1 and the fabric layer 2. The 3 layers of the mesh cloth can be attached to the two surfaces of the foaming sponge through hot melt adhesive.
The thickness of the mesh cloth 3 is 0.05 to 0.3mm, preferably 0.05 to 0.15 mm. The material is terylene or polyester material.
The thickness of the hot melt adhesive is 0.01 to 0.1mm, and the thickness is more preferably 0.01 to 0.03 mm. The material of the hot melt adhesive is preferably polyurethane hot melt adhesive.
The preparation method of the heat-preservation and heat-insulation composite cloth comprises the following steps:
1) preparing: adhering mesh cloth 3 to two sides of the foaming sponge;
2) preparing aerogel from the foamed sponge compounded with the eyelet fabric 3 by a sol-gel method to obtain foamed sponge filled with silica aerogel;
3) the upper fabric layer 2 is attached to the surface of the foaming sponge compounded with the silicon dioxide aerogel.
Compared with the two phases of the embodiment, the mesh fabric 3 of the present application is directly attached to two sides of the foaming sponge, and then the aerogel is formed and then the fabric layer 2 is attached to the mesh fabric 3.
As a more specific example, the preparation process is as follows:
uniformly laminating a layer of 0.15mm thick terylene mesh cloth 3 on the surface of a foaming sponge roll with the thickness of 1.5mm and the density of 20Kg/m, and laminating the two layers by adopting 0.03mm thick polyurethane hot melt adhesive;
preparing aerogel from the foamed sponge compounded with the mesh cloth 3 by a sol-gel method to obtain a foamed sponge roll material filled with silica aerogel, wherein the mass of the silica aerogel accounts for about 70%;
and uniformly attaching 0.02mm of TPU (thermoplastic polyurethane) film to two surfaces of the prepared sponge aerogel roll material to obtain the super heat-insulating cloth.
The super heat-insulating cloth prepared by the method has the thickness of 1.55mm, the normal-temperature heat conductivity coefficient of 0.017W/(m.K), and the moisture permeability of 1300-2000 g/(. square meter.24 h).
Compared with the second embodiment, the heat preservation and insulation composite fabric prepared in the third embodiment has higher hardness and lower softness than the heat preservation and insulation composite fabric prepared in the second embodiment.
Compared with the prior art, the invention has the following beneficial effects:
the heat-preservation and heat-insulation composite cloth provided by the embodiment of the invention can effectively prevent the aerogel material from falling off, and improves the contact affinity of the material and a human body; meanwhile, the produced cloth has the softness of the foaming sponge and good comfort; the mass ratio of the silicon dioxide aerogel on the flexible base material layer is greatly improved, and the heat preservation and insulation effect of the composite cloth is better.
It is to be understood that the above-described embodiments are only some of the embodiments of the present application, and not all embodiments of the present application. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims (10)

1. A heat-preservation and heat-insulation composite cloth is characterized by comprising a flexible base material layer and a fabric layer; the flexible substrate layer is the foaming sponge that has silicon dioxide aerogel for the complex.
2. The heat-preservation and heat-insulation composite cloth material as claimed in claim 1, wherein the foamed sponge is of an open pore structure, and the pore diameter is 10-500 μm.
3. The thermal insulation composite cloth material as claimed in claim 1, wherein the thickness of the foamed sponge is 0.3-5.0 mm, and the density is 5-40 Kg/m for carrying out thin film growing.
4. The thermal insulation composite cloth material as claimed in claim 1, wherein the silica aerogel is SiO2-TiO2And (3) compounding the aerogel.
5. The heat-preservation heat-insulation composite cloth material as claimed in claim 4, wherein the mass ratio of the silica aerogel to the flexible base material layer is 70% -90%, and the normal-temperature heat conductivity coefficient of the heat-preservation heat-insulation composite cloth material is 0.015-0.018W/(m-K).
6. The thermal insulation composite fabric as claimed in claim 1, wherein a mesh fabric is bonded to both surfaces of the foamed sponge of the flexible base material layer, and the mesh fabric is located between the flexible base material layer and the fabric layer.
7. The heat-preservation and heat-insulation composite cloth according to any one of claim 6, wherein the mesh cloth is 0.05-0.3 mm thick and made of terylene or polyester material; the mesh cloth and the flexible substrate layer are bonded through a hot melt adhesive; the hot melt adhesive is polyurethane hot melt adhesive, and the thickness of the hot melt adhesive is 0.01-0.1 mm.
8. A preparation method of a heat preservation and insulation composite cloth is characterized in that the heat preservation and insulation composite cloth is as shown in any one of claims 1 to 5; the preparation method comprises the following steps:
1) preparing: at least one side of the foaming sponge is padded with mesh cloth;
2) preparing aerogel from the foaming sponge with the mesh cloth on the pad by a sol-gel method to obtain foaming sponge filled with silicon dioxide aerogel;
3) taking out the eyelet fabric;
4) and (3) attaching an upper fabric layer to the surface of the foaming sponge compounded with the silicon dioxide aerogel.
9. The method as claimed in claim 8, wherein the mesh fabric has a thickness of 0.05 to 0.3mm and is made of polyester or polyester.
10. A preparation method of a heat preservation and insulation composite cloth is characterized in that the heat preservation and insulation composite cloth is as shown in any one of claims 1 to 6; the preparation method comprises the following steps:
1) preparing: adhering mesh cloth to two sides of the foaming sponge;
2) preparing aerogel from the foaming sponge compounded with the mesh fabric by a sol-gel method to obtain foaming sponge filled with silicon dioxide aerogel;
3) and (3) attaching an upper fabric layer to the surface of the foaming sponge compounded with the silicon dioxide aerogel.
CN202010717285.6A 2020-07-23 2020-07-23 Heat-preservation and heat-insulation composite cloth and preparation method thereof Pending CN111844995A (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114031809A (en) * 2021-11-09 2022-02-11 苏州普诺兹电子有限公司 Preparation method of flame-retardant, heat-insulating and sound-absorbing sponge
CN114151653A (en) * 2021-12-09 2022-03-08 上海大音希声新型材料有限公司 Heat-insulating aerogel sleeve block group for square-shaped pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114031809A (en) * 2021-11-09 2022-02-11 苏州普诺兹电子有限公司 Preparation method of flame-retardant, heat-insulating and sound-absorbing sponge
CN114151653A (en) * 2021-12-09 2022-03-08 上海大音希声新型材料有限公司 Heat-insulating aerogel sleeve block group for square-shaped pipeline

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