CN111572111A - Quilting seam and line sewn composite heat-proof infrared detection stealth fabric - Google Patents
Quilting seam and line sewn composite heat-proof infrared detection stealth fabric Download PDFInfo
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- CN111572111A CN111572111A CN202010474886.9A CN202010474886A CN111572111A CN 111572111 A CN111572111 A CN 111572111A CN 202010474886 A CN202010474886 A CN 202010474886A CN 111572111 A CN111572111 A CN 111572111A
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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
- 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
- B32B7/08—Interconnection of layers by mechanical means
- B32B7/09—Interconnection of layers by mechanical means by stitching, needling or sewing
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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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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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
- 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
- B32B5/024—Woven fabric
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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
- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0036—Polyester fibres
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
- B32B2255/205—Metallic coating
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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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
- 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
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- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
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Abstract
The invention belongs to the field of functional textile materials, and particularly relates to a heat-proof infrared reconnaissance stealth fabric formed by quilting and sewing. The invention is made by sewing a basal layer, a heat insulation foam layer and a surface layer by quilting threads from the inner side to the outer side in sequence; the base layer is a filament woven fabric with one side plated with an aluminum-plated film, and the aluminum-plated film is positioned on the outer side; the heat insulation foam layer consists of a polyester fiber non-woven fabric base material and a microporous foam coating polyurethane film coated on the polyester fiber non-woven fabric base material; the surface layer is a filament woven fabric with one side plated with an aluminum plating film and the other side coated with a camouflage pattern, the aluminum plating film is positioned on the inner side, and the camouflage pattern is a low infrared emissivity coating which is coated on the surface of the filament woven fabric by adopting a spray painting process. The invention can effectively inhibit the radiation characteristic in the atmospheric window range, can simultaneously deal with local high temperature in a short time, has strong comprehensive stealth performance and better reliability and durability.
Description
Technical Field
The invention belongs to the technical field of functional textile materials, and particularly relates to a heat-proof infrared reconnaissance stealth fabric sewn and compounded by quilting lines.
Background
At present, more and more materials are used for military camouflage, such as camouflage nets, camouflage tents, individual camouflage clothes, sniping clothes and the like, and the materials have good anti-reconnaissance effects on visible light, near infrared light and radar wave bands, but the materials are not perfect in the aspect of anti-heat infrared reconnaissance technology. Taking the camouflage clothing for individual combat as an example, the camouflage effect of the camouflage clothing still needs to be further improved, especially in the aspect of heat-proof infrared imaging reconnaissance. The company provides a heat-proof infrared reconnaissance stealth fabric and a manufacturing method thereof in an invention patent with the publication number of CN 107554014B, and the manufactured stealth fabric can be effectively stealthed for more than 30min under an infrared imager. On the basis, how to further break through the limitation of the stealth time and how to further improve the portability of the stealth fabric are important subjects faced by the technical personnel in the field.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a heat-proof infrared reconnaissance stealth fabric formed by quilting and sewing composite materials, so as to improve the comprehensive performance of the fabric.
In order to achieve the purpose, the invention is realized by the following technical scheme: a thermal-resistant infrared reconnaissance stealth fabric sewn and compounded by quilting threads is formed by sewing a substrate layer, a heat-insulating foam layer and a surface layer by the quilting threads from the inner side to the outer side in sequence; the base layer is a filament woven fabric with one side plated with an aluminum-plated film, and the aluminum-plated film is positioned on the outer side; the heat insulation foam layer consists of a polyester fiber non-woven fabric base material and a microporous foam coating polyurethane film coated on the polyester fiber non-woven fabric base material; the surface layer is a filament woven fabric with one side plated with an aluminum plating film and the other side coated with a camouflage pattern, the aluminum plating film is positioned on the inner side, and the camouflage pattern is a low infrared emissivity coating which is coated on the surface of the filament woven fabric by adopting a spray painting process; the low infrared emissivity coating is prepared by the following steps:
s1: uniformly mixing 300 parts of water 250-one, 5-7 parts of allyl alcohol polyoxypropylene ether phosphate and 2-3 parts of allyl alcohol ether phosphate by weight to obtain a mixture A;
s2: uniformly mixing 50-60 parts of butyl acrylate, 10-12 parts of isopropyl styrene, 10-12 parts of vinyl acetate, 8-9 parts of petroleum ether, 5-7 parts of acetone and 2-7 parts of an oily pigment by weight to obtain a mixture B;
s3: uniformly mixing 30-40 parts of water, 15-20 parts of n-butanol, 2-3 parts of 1, 2-propylene glycol, 2-3 parts of 1, 4-butanediol, 5-7 parts of triton, 0.02 part of graphene, 2-3 parts of isopropyl titanate and 1-2 parts of ferric trichloride to obtain a mixture C;
s4: and mixing the mixture A and the mixture B, stirring and heating to 68 ℃, then adding 25-30 parts of aqueous solution containing 1 part of ammonium persulfate, preserving heat for 5-6h, then adding the mixture C, continuing preserving heat and stirring for 1.5-2h to obtain the low-infrared-emissivity coating.
In a further preferred embodiment of the present invention, in the heat insulation foam layer, the polyester fiber nonwoven fabric substrate is located at the inner side, and the microcellular foam coated polyurethane film is located at the outer side.
In a further preferable scheme of the invention, in the heat insulation foam layer, a metal heat conduction net layer is further clamped between the polyester fiber non-woven fabric substrate and the microporous foam coating polyurethane film.
The invention further preferably adopts the scheme that the metal heat-conducting net is a square-hole twill woven net, the diameter of the meshes is 2-4mm, and the diameter of the metal wires is 0.05-0.1 mm.
In a further preferable scheme of the invention, the quilting line is at least one of a warp quilting line, a weft quilting line, a warp and weft combined quilting line, a diamond quilting line, an arc quilting line and a curve quilting line.
According to a further preferred scheme of the invention, the camouflage pattern is a vegetation color camouflage pattern or desert color camouflage pattern; the camouflage patterns are prepared from a plurality of low infrared emissivity coatings containing different colors of oily pigments through a spray painting process.
In a further preferable embodiment of the present invention, the aluminum-plated films in the substrate layer and the surface layer can be obtained by vacuum aluminum plating or magnetron sputtering aluminum plating.
In a further preferred embodiment of the present invention, the thermal insulation foam layer is prepared by the following steps: firstly, selecting polyester fiber non-woven fabric, carrying out calendaring treatment on a calendar to obtain the polyester fiber non-woven fabric substrate, wherein the process conditions are that the pressure is 80-120t, the temperature of a hot roller is 80-120 ℃, and the speed is 10-30 m/min; then, coating a microporous foam coating on one surface of the polyester fiber non-woven fabric base material, wherein the coating is made of aqueous polyurethane emulsion, a foaming agent, a stabilizing agent, a thickening agent and a curing agent, foaming is carried out by adopting a mechanical foaming machine, the foaming ratio is 1:4-5, the thickness of a coating slurry layer is 0.3-0.5mm, the drying temperature is 110-.
The heat-proof infrared reconnaissance stealth fabric sewn and compounded by the quilting threads is formed by sewing the base layer, the heat-insulating foam layer and the surface layer by the quilting threads from the inner side to the outer side in sequence. The surface layer is a filament woven fabric with one side plated with an aluminizer and the other side coated with camouflage patterns. The filament woven fabric is taken as a foundation, so that the overall strength is ensured, and better sewability and durability are endowed; the aluminizer is mainly used for blocking heat infrared radiation from the inner side; the camouflage pattern is a camouflage pattern which can be effectively camouflaged in a visible light area, is made of raw materials with low infrared emissivity, and can be used for pertinently inhibiting the radiation characteristics in the range of two atmospheric windows (3.5-5.5 mu m and 8.0-14.0 mu m). Because the infrared radiation characteristic of the camouflage pattern material is optimized in a targeted manner, the heat insulation foam layer in the invention has different functions from the conventional heat insulation layer, and the heat insulation foam layer mainly aims to inhibit local high temperature possibly existing in the heat insulation foam layer from being conducted to a surface layer, such as heat sources of hot food bags, flames and the like, and the infrared radiation of the surface layer basically meets the stealth requirement for the temperature of a human body or the temperature close to the human body; furthermore, the preferred solution of sandwiching the wire mesh in the insulating foam layer is also aimed at suppressing possible local overheating. In the substrate layer, the filament woven fabric is taken as a foundation, so that the overall strength is ensured, and better sewability and durability are endowed; the aluminizer is mainly used to block the thermal infrared radiation directly from the inside. The quilting line sewing process can overcome the difficulty of large gluing difficulty among the basal layer, the heat insulation foam layer and the surface layer, effectively integrates the three layers into a whole, and has good durability and strong reliability.
Has the advantages that: the heat-proof infrared reconnaissance stealth fabric sewn and compounded by the quilting threads can effectively inhibit radiation characteristics within two atmospheric windows of 3.5-5.5 microns and 8.0-14.0 microns, can respond to local high temperature in a short time, has strong comprehensive stealth performance, and has better reliability and durability.
Drawings
FIG. 1 is a graph of emissivity of the present invention.
Detailed Description
The invention will be further illustrated by the following specific examples, which are given for the purpose of illustration only and are not intended to be limiting.
Example 1
A thermal-resistant infrared reconnaissance stealth fabric sewn and compounded by quilting threads is formed by sewing a substrate layer, a heat-insulating foam layer and a surface layer by the quilting threads from the inner side to the outer side in sequence; the base layer is a filament woven fabric with one side plated with an aluminum-plated film, and the aluminum-plated film is positioned on the outer side; the heat insulation foam layer consists of a polyester fiber non-woven fabric base material and a microporous foam coating polyurethane film coated on the polyester fiber non-woven fabric base material; the surface layer is a filament woven fabric with one side plated with an aluminum plating film and the other side coated with a camouflage pattern, the aluminum plating film is positioned on the inner side, and the camouflage pattern is a low infrared emissivity coating which is coated on the surface of the filament woven fabric by adopting a spray painting process; the low infrared emissivity coating is prepared by the following steps:
s1: uniformly mixing 250 parts of water, 7 parts of allyl alcohol polyoxypropylene ether phosphate and 3 parts of allyl alcohol ether phosphate by weight to obtain a mixture A;
s2: uniformly mixing 50 parts of butyl acrylate, 10 parts of isopropylstyrene, 10 parts of vinyl acetate, 9 parts of petroleum ether, 7 parts of acetone and 7 parts of oily pigment by weight to obtain a mixture B;
s3: uniformly mixing 30 parts of water, 20 parts of n-butanol, 3 parts of 1, 2-propylene glycol, 3 parts of 1, 4-butanediol, 7 parts of triton, 0.02 part of graphene, 3 parts of isopropyl titanate and 2 parts of ferric trichloride to obtain a mixture C;
s4: and mixing the mixture A and the mixture B, stirring and heating to 68 ℃, then adding 25 parts of aqueous solution containing 1 part of ammonium persulfate, preserving heat for 5 hours, then adding the mixture C, continuing preserving heat and stirring for 1.5 hours to obtain the low-infrared-emissivity coating.
In this embodiment, in the thermal insulation foam layer, the polyester fiber non-woven fabric substrate is located at the inner side, and the microcellular foam coating polyurethane film is located at the outer side.
In this embodiment, quilting line combines together for the longitude and latitude quilting line.
In this embodiment, the camouflage pattern is a vegetation color camouflage pattern; the camouflage patterns are prepared from a plurality of low infrared emissivity coatings containing different colors of oily pigments through a spray painting process.
In this embodiment, the aluminum-plated films in the substrate layer and the surface layer are both obtained by vacuum aluminum plating.
In this embodiment, the thermal insulation foam layer is prepared by the following steps: firstly, selecting a polyester fiber non-woven fabric, carrying out calendaring treatment on a calendar to obtain a polyester fiber non-woven fabric substrate, wherein the process conditions are that the pressure is 80t, the temperature of a hot roller is 120 ℃, and the speed is 10 m/min; then, coating a microporous foam coating on one surface of the polyester fiber non-woven fabric base material, wherein the coating is made of aqueous polyurethane emulsion, a foaming agent, a stabilizing agent, a thickening agent and a curing agent, foaming is carried out by adopting a mechanical foaming machine, the foaming ratio is 1:4, the thickness of a coating slurry layer is 0.3mm, the drying temperature is 110 ℃, the curing temperature is 160 ℃, and the cloth speed is 10m/min, so that one surface of the polyester fiber non-woven fabric base material is attached with the microporous foam coating polyurethane film.
Example 2
A thermal-resistant infrared reconnaissance stealth fabric sewn and compounded by quilting threads is formed by sewing a substrate layer, a heat-insulating foam layer and a surface layer by the quilting threads from the inner side to the outer side in sequence; the base layer is a filament woven fabric with one side plated with an aluminum-plated film, and the aluminum-plated film is positioned on the outer side; the heat insulation foam layer consists of a polyester fiber non-woven fabric base material and a microporous foam coating polyurethane film coated on the polyester fiber non-woven fabric base material; the surface layer is a filament woven fabric with one side plated with an aluminum plating film and the other side coated with a camouflage pattern, the aluminum plating film is positioned on the inner side, and the camouflage pattern is a low infrared emissivity coating which is coated on the surface of the filament woven fabric by adopting a spray painting process; the low infrared emissivity coating is prepared by the following steps:
s1: uniformly mixing 300 parts of water, 5 parts of allyl alcohol polyoxypropylene ether phosphate and 2 parts of allyl alcohol ether phosphate by weight to obtain a mixture A;
s2: uniformly mixing 60 parts of butyl acrylate, 12 parts of isopropyl styrene, 12 parts of vinyl acetate, 9 parts of petroleum ether, 5 parts of acetone and 2 parts of oily pigment by weight to obtain a mixture B;
s3: uniformly mixing 40 parts of water, 15 parts of n-butanol, 2 parts of 1, 2-propylene glycol, 2 parts of 1, 4-butanediol, 5 parts of triton, 0.02 part of graphene, 2 parts of isopropyl titanate and 1 part of ferric trichloride to obtain a mixture C;
s4: and mixing the mixture A and the mixture B, stirring and heating to 68 ℃, then adding 30 parts of aqueous solution containing 1 part of ammonium persulfate, preserving heat for 6 hours, then adding the mixture C, and continuing preserving heat and stirring for 2 hours to obtain the low-infrared-emissivity coating.
In this embodiment, in the thermal insulation foam layer, the polyester fiber non-woven fabric substrate is located at the inner side, and the microcellular foam coating polyurethane film is located at the outer side.
In this embodiment, in the heat insulation foam layer, a layer of stainless steel metal heat conduction net is further sandwiched between the polyester fiber non-woven fabric substrate and the microporous foam coating polyurethane film.
In this embodiment, metal heat conduction net is square hole twill woven mesh, and the mesh diameter is 2mm, and the wire diameter is 0.05 mm.
In this embodiment, the quilting line is a diamond quilting line.
In this embodiment, the camouflage pattern is a desert color camouflage pattern; the camouflage patterns are prepared from a plurality of low infrared emissivity coatings containing different colors of oily pigments through a spray painting process.
In this embodiment, the aluminum-plated films in the substrate layer and the surface layer are both obtained by magnetron sputtering aluminum plating.
In this embodiment, the thermal insulation foam layer is prepared by the following steps: firstly, selecting a polyester fiber non-woven fabric, carrying out calendaring treatment on a calendar to obtain a polyester fiber non-woven fabric substrate, wherein the process conditions are that the pressure is 120t, the temperature of a hot roller is 120 ℃, and the speed is 30 m/min; then, coating a microporous foam coating on one surface of the polyester fiber non-woven fabric base material, wherein the coating is made of aqueous polyurethane emulsion, a foaming agent, a stabilizing agent, a thickening agent and a curing agent, foaming is carried out by adopting a mechanical foaming machine, the foaming ratio is 1:5, the thickness of a coating slurry layer is 0.5mm, the drying temperature is 130 ℃, the curing temperature is 180 ℃, and the cloth speed is 20m/min, so that one surface of the polyester fiber non-woven fabric base material is attached with the microporous foam coating polyurethane film.
Example 3
A thermal-resistant infrared reconnaissance stealth fabric sewn and compounded by quilting threads is formed by sewing a substrate layer, a heat-insulating foam layer and a surface layer by the quilting threads from the inner side to the outer side in sequence; the base layer is a filament woven fabric with one side plated with an aluminum-plated film, and the aluminum-plated film is positioned on the outer side; the heat insulation foam layer consists of a polyester fiber non-woven fabric base material and a microporous foam coating polyurethane film coated on the polyester fiber non-woven fabric base material; the surface layer is a filament woven fabric with one side plated with an aluminum plating film and the other side coated with a camouflage pattern, the aluminum plating film is positioned on the inner side, and the camouflage pattern is a low infrared emissivity coating which is coated on the surface of the filament woven fabric by adopting a spray painting process; the low infrared emissivity coating is prepared by the following steps:
s1: uniformly mixing 280 parts of water, 6 parts of allyl alcohol polyoxypropylene ether phosphate and 3 parts of allyl alcohol ether phosphate by weight to obtain a mixture A;
s2: uniformly mixing 55 parts of butyl acrylate, 11 parts of isopropylstyrene, 10 parts of vinyl acetate, 8 parts of petroleum ether, 5 parts of acetone and 5 parts of oily pigment by weight to obtain a mixture B;
s3: uniformly mixing 35 parts of water, 17 parts of n-butanol, 3 parts of 1, 2-propylene glycol, 2 parts of 1, 4-butanediol, 6 parts of triton, 0.02 part of graphene, 2 parts of isopropyl titanate and 2 parts of ferric trichloride to obtain a mixture C;
s4: and mixing the mixture A and the mixture B, stirring and heating to 68 ℃, then adding 30 parts of aqueous solution containing 1 part of ammonium persulfate, preserving heat for 5 hours, then adding the mixture C, and continuing preserving heat and stirring for 2 hours to obtain the low-infrared-emissivity coating.
In this embodiment, in the thermal insulation foam layer, the polyester fiber non-woven fabric substrate is located at the inner side, and the microcellular foam coating polyurethane film is located at the outer side.
In this embodiment, in the heat insulation foam layer, a copper metal heat conduction mesh whose surface is coated with an oxidation resistant layer is further sandwiched between the polyester fiber non-woven fabric substrate and the microporous foam coating polyurethane film.
In this embodiment, metal heat conduction net is square hole twill woven mesh, and the mesh diameter is 4mm, and the wire diameter is 0.1 mm.
In this embodiment, the quilting lines are warp quilting lines.
In this embodiment, the camouflage pattern is a vegetation color camouflage pattern; the camouflage patterns are prepared from a plurality of low infrared emissivity coatings containing different colors of oily pigments through a spray painting process.
In this embodiment, the aluminum-plated films in the substrate layer and the surface layer are both obtained by vacuum aluminum plating.
In this embodiment, the thermal insulation foam layer is prepared by the following steps: firstly, selecting a polyester fiber non-woven fabric, carrying out calendaring treatment on a calendar to obtain a polyester fiber non-woven fabric substrate, wherein the process conditions are that the pressure is 100t, the temperature of a hot roller is 110 ℃, and the speed is 20 m/min; then, coating a microporous foam coating on one surface of the polyester fiber non-woven fabric base material, wherein the coating is made of aqueous polyurethane emulsion, a foaming agent, a stabilizing agent, a thickening agent and a curing agent, foaming is carried out by adopting a mechanical foaming machine, the foaming ratio is 1:5, the thickness of a coating slurry layer is 0.3mm, the drying temperature is 120 ℃, the curing temperature is 170 ℃, and the cloth speed is 15m/min, so that one surface of the polyester fiber non-woven fabric base material is attached with the microporous foam coating polyurethane film.
The emissivity spectra of examples 1 to 3 are shown in fig. 1, and it can be seen that the radiation characteristics of each example in the two atmospheric window ranges of 3.5-5.5 μm and 8.0-14.0 μm are limited to a very low range, and thus have strong infrared detection resistance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
Claims (8)
1. A quilted seam line sewing composite heat-proof infrared reconnaissance stealth fabric is characterized in that: the heat insulation foam layer is formed by sewing a basal layer, a heat insulation foam layer and a surface layer through quilting threads from the inner side to the outer side in sequence; the base layer is a filament woven fabric with one side plated with an aluminum-plated film, and the aluminum-plated film is positioned on the outer side; the heat insulation foam layer consists of a polyester fiber non-woven fabric base material and a microporous foam coating polyurethane film coated on the polyester fiber non-woven fabric base material; the surface layer is a filament woven fabric with one side plated with an aluminum plating film and the other side coated with a camouflage pattern, the aluminum plating film is positioned on the inner side, and the camouflage pattern is a low infrared emissivity coating which is coated on the surface of the filament woven fabric by adopting a spray painting process; the low infrared emissivity coating is prepared by the following steps:
s1: uniformly mixing 300 parts of water 250-one, 5-7 parts of allyl alcohol polyoxypropylene ether phosphate and 2-3 parts of allyl alcohol ether phosphate by weight to obtain a mixture A;
s2: uniformly mixing 50-60 parts of butyl acrylate, 10-12 parts of isopropyl styrene, 10-12 parts of vinyl acetate, 8-9 parts of petroleum ether, 5-7 parts of acetone and 2-7 parts of an oily pigment by weight to obtain a mixture B;
s3: uniformly mixing 30-40 parts of water, 15-20 parts of n-butanol, 2-3 parts of 1, 2-propylene glycol, 2-3 parts of 1, 4-butanediol, 5-7 parts of triton, 0.02 part of graphene, 2-3 parts of isopropyl titanate and 1-2 parts of ferric trichloride to obtain a mixture C;
s4: and mixing the mixture A and the mixture B, stirring and heating to 68 ℃, then adding 25-30 parts of aqueous solution containing 1 part of ammonium persulfate, preserving heat for 5-6h, then adding the mixture C, continuing preserving heat and stirring for 1.5-2h to obtain the low-infrared-emissivity coating.
2. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 1, characterized in that: in the heat insulation foam layer, the polyester fiber non-woven fabric base material is positioned on the inner side, and the microporous foam coating polyurethane film is positioned on the outer side.
3. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 2, characterized in that: in the heat insulation foam layer, a layer of metal heat conduction net is clamped between the polyester fiber non-woven fabric substrate and the microporous foam coating polyurethane film.
4. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 3, characterized in that: the metal heat conducting net is a square-hole twill woven net, the diameter of a mesh is 2-4mm, and the diameter of a metal wire is 0.05-0.1 mm.
5. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 1, characterized in that: the quilting line is at least one of a warp quilting line, a weft quilting line, a warp combined quilting line, a diamond quilting line, an arc quilting line and a curve quilting line.
6. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 1, characterized in that: the camouflage patterns are vegetation color camouflage color patterns or desert color camouflage color patterns; the camouflage patterns are prepared from a plurality of low infrared emissivity coatings containing different colors of oily pigments through a spray painting process.
7. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 1, characterized in that: the aluminizer in the basal layer and the surface layer can be obtained by vacuum aluminizing or magnetron sputtering aluminizing processing.
8. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 1, characterized in that: the heat insulation foam layer is prepared by the following steps: firstly, selecting polyester fiber non-woven fabric, carrying out calendaring treatment on a calendar to obtain the polyester fiber non-woven fabric substrate, wherein the process conditions are that the pressure is 80-120t, the temperature of a hot roller is 80-120 ℃, and the speed is 10-30 m/min; then, coating a microporous foam coating on one surface of the polyester fiber non-woven fabric base material, wherein the coating is made of aqueous polyurethane emulsion, a foaming agent, a stabilizing agent, a thickening agent and a curing agent, foaming is carried out by adopting a mechanical foaming machine, the foaming ratio is 1:4-5, the thickness of a coating slurry layer is 0.3-0.5mm, the drying temperature is 110-.
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