CN115323794A - Preparation method and application of infrared stealth fabric coating fabric - Google Patents
Preparation method and application of infrared stealth fabric coating fabric Download PDFInfo
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- CN115323794A CN115323794A CN202210803848.2A CN202210803848A CN115323794A CN 115323794 A CN115323794 A CN 115323794A CN 202210803848 A CN202210803848 A CN 202210803848A CN 115323794 A CN115323794 A CN 115323794A
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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
- D06N3/0034—Polyamide fibres
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- 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
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
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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
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
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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
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
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- 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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- D06N2209/00—Properties of the materials
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
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- D06N2209/00—Properties of the materials
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/143—Inert, i.e. inert to chemical degradation, corrosion resistant
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Abstract
The invention belongs to the technical field of infrared stealth materials, and particularly relates to a preparation method of an infrared stealth fabric coating fabric, which comprises the steps of preparing a piece of base fabric and pretreating, then sequentially arranging a thermal stabilizing layer, an infrared absorption layer and a fabric layer above the base fabric, preparing the infrared absorption layer and the fabric layer by adopting scraper blade coating, and then drying and cooling to obtain the infrared stealth fabric coating fabric; the material of the thermal stabilization layer is microcapsule phase change material, the core material of the thermal stabilization layer is one or more of n-octadecane, n-nonadecane or n-eicosane, the wall material is polyurethane, the infrared absorption layer contains nano far infrared finishing agent, and the fabric layer contains metal modified filler; the invention also provides an application of the infrared stealth fabric coating fabric. According to the invention, infrared reflection, absorption and temperature regulation are respectively carried out on each functional layer, so that the infrared stealth characteristic and durability of the fabric coating fabric are obviously enhanced, the integral operation is simple, the production efficiency is high, and the cost is saved.
Description
Technical Field
The invention belongs to the technical field of infrared stealth materials, and particularly relates to a preparation method and application of an infrared stealth fabric coating fabric.
Background
The infrared thermal imager utilizes the thermal radiation imaging of the target, obviously improves the probability of discovering the target such as military facilities, equipment and personnel, poses serious threat to the existence of the military target, and has the advantages of good concealment, strong anti-interference capability, suitability for various complicated and severe battlefield environments and the like in battle, so the infrared reconnaissance technology gradually becomes a main reconnaissance means in modern war. Therefore, the infrared camouflage technology is developed, mainly adopts infrared stealth fabric to resist the detection of a thermal infrared imager, and generally weakens the infrared radiation intensity of a target by coating infrared stealth paint on the surface of the target and the like at present, so that the probability of the target being detected is reduced, and the battlefield viability of the target is improved.
However, the infrared stealth fabric in the prior art has poor comprehensive performance, the stealth coating is easy to fall off when coated on the surface of a target, and the stealth coating has low rigidity and durability and cannot achieve ideal effects. For example, in the prior art, a fabric which is soft, rainproof, anticorrosive and has a certain stealth effect is prepared by a preparation method of an infrared stealth fabric coating fabric with the patent number of CN105040462B, the process is simple, the cost is low, but it can be seen that the components in the patent are simple, the stealth effect of the fabric needs to be further enhanced, and a single temperature isolation layer is arranged in the patent, so that the fabric is only suitable for an environment with a small difference between the ambient temperature and the human body temperature, and the application range of the fabric is limited to a certain extent. For another example, in the technical scheme of "human air conditioner intelligent wearing article with infrared stealth function and waterproof and breathable" of patent No. CN104585913B, although the comfort of human body can be greatly improved, and the viability and fighting capacity of the user can be improved, the structure in the patent is complex to set up, the parts are cumbersome, the operation such as marching or hiding the body is not facilitated, and the installation of the air conditioning system is easily damaged in the exercise process, and the practicability is not good. Therefore, in the face of rapid development of modern technology, it is very important to develop a reasonable preparation method of infrared stealth fabric coating fabric.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a preparation method of an infrared stealth fabric coating fabric which is good in stealth effect, strong in functionality, high in production efficiency, economical and durable. In order to realize the purpose of the invention, the following technical scheme is adopted:
a preparation method of an infrared stealth fabric coating fabric comprises the following steps:
1) Preparing a piece of base cloth, and carrying out pretreatment of cleaning, drying and presetting on the base cloth;
2) Arranging a thermal stabilizing layer above the base cloth pretreated in the step 1);
3) Coating the infrared absorption layer on the thermal stability layer prepared in the step 2) by using a scraper of a coating machine, and carrying out blade coating on the infrared absorption layer T 1 Drying at a temperature, and cooling to a temperature t 1 To obtain an infrared absorption layer;
4) Coating a fabric layer on the infrared absorption layer prepared in the step 3) by using a scraper of a coating machine, and carrying out knife coating on the fabric layer at T 2 Drying at a temperature, and cooling to a temperature t 2 To prepare a fabric layer;
the material of the thermal stabilization layer is a microcapsule phase change material, the core material of the microcapsule phase change material is one or more of n-octadecane, n-nonadecane or n-eicosane, the wall material of the microcapsule phase change material is polyurethane, and the mass fraction of the core material is 60-70%; the infrared absorption layer contains a nano far infrared finishing agent; the fabric layer contains metal modified filler.
Preferably, the thermal stable layer in step 2) is prepared by performing a two-dip two-roll process or a foam finishing process on the microcapsule phase change material.
Preferably, the thickness of the thermal stabilization layer is 0.3 to 0.5mm.
Preferably, the addition amount of the nano far infrared finishing agent in the infrared absorption layer is 5-12%, and the average particle size of the nano far infrared finishing agent is less than 15nm.
Preferably, the distance between the scraper of the coating machine and the heat stabilizing layer in the step 3) is 0.05-0.15mm, and the drying temperature T is 1 Is 150-180Temperature of cooling t DEG C 1 ＜50℃。
Preferably, the addition amount of the metal modified filler in the fabric layer is 15-25%.
Preferably, the metal modified filler is a metal silver modified ball-milled Ag-Cu composite particle, and the ball-milling mass ratio of Ag to Cu is (1-2): (3-5).
Preferably, the distance between the scraper of the coating machine and the infrared absorption layer in the step 4) is 0.1-0.2mm, and the drying temperature T is 2 At 120-140 deg.C, cooling temperature t 2 ＜50℃。
Preferably, the base cloth is one of nylon or terylene.
In order to achieve the purpose, the invention also provides application of the infrared stealth fabric coating fabric prepared by the method, and the infrared stealth fabric coating fabric is used for weaving infrared stealth intelligent wearing articles.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the fabric layer, the infrared absorption layer, the thermal stabilization layer and the base cloth are sequentially arranged from the outer layer to the inner layer, and the metal modified filler is arranged in the fabric layer, so that the infrared emissivity of the surface of the infrared stealth fabric coating is remarkably reduced, and the corrosion resistance and the impact resistance of the whole fabric are enhanced while the fabric has good stealth characteristics; the nano far infrared finishing agent is arranged in the infrared absorption layer, so that secondary absorption consumption attenuation can be performed on radar waves which are not absorbed, and the stealth performance is enhanced; the microcapsule phase change material is further arranged in the thermal stabilization layer, and the composition of the core material and the wall material of the microcapsule phase change material is specifically limited, so that the temperature change range of the microcapsule phase change material is close to the body temperature of a human body, the wearing comfort is enhanced, the air holes in the polyurethane structure can isolate the heat transfer between the microcapsule phase change material and the outside, the temperature change of the microcapsule phase change material is adjusted and stabilized to avoid the detection of an infrared detector, and the stealth effect is further improved.
The multifunctional fabric coating fabric is provided with the multiple functional layers, and the infrared reflection, absorption and temperature regulation are respectively carried out on the functional layers, so that the infrared stealth characteristic of the fabric coating fabric is remarkably enhanced, the integral functionality is strong, and the popularization is facilitated; in addition, the layer upon layer structure sets up the durability that has improved the surface fabric, and the effect that the function of outer layer drops and does not influence inside functional layer promptly, and the practicality is strong.
The invention integrally adopts a mode of blade coating layer by layer to prepare each functional layer, the integral method is simple, the operation is easy, the production efficiency is high, the preparation cost can be saved to a certain extent, and the method is economical and feasible.
Drawings
Fig. 1 is a schematic flow chart of a preparation method of the infrared stealth fabric coating fabric of the invention.
Detailed Description
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 making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Detailed description of the preferred embodiment 1
Fig. 1 is a schematic flow chart of a preparation method of an infrared stealth fabric coating fabric of the present invention, and it can be seen that the preparation method of the infrared stealth fabric coating fabric of the present invention comprises the following steps:
step S1: preparing nylon as base cloth, and carrying out pretreatment of cleaning, drying and presetting on the base cloth.
Step S2: and (3) preparing a thermal stabilizing layer with the thickness of 0.3mm by adopting the microcapsule phase change material above the base cloth pretreated in the step (S1) through a two-dipping two-rolling process. In the embodiment, the core material of the microcapsule phase change material is octadecane, the wall material of the microcapsule phase change material is polyurethane, the mass fraction of the core material is 60%, the core material has high latent heat, the melting point is close to the body temperature of a human body, the core material is suitable for clothes, and the wearing comfort of the infrared stealth fabric is improved; and the polyurethane wall material fully exerts the advantages of the polyurethane, not only can a good heat preservation effect be achieved, but also the air holes in the polyurethane foaming structure can isolate the self heat transfer from the outside, so that the detection of an infrared detector is avoided, and a good stealth effect is achieved.
And step S3: coating an infrared absorption layer on the thermal stability layer prepared in the step S2 by using a scraper of a coating machine, wherein the distance between the scraper of the coating machine and the thermal stability layer is 0.05mm, drying at 150 ℃, and cooling to 45 ℃ to prepare the infrared absorption layer; wherein, the infrared absorption layer contains nano far infrared finishing agent, which is used for carrying out secondary absorption consumption attenuation on radar waves which are not absorbed, the addition amount of the nano far infrared finishing agent in the infrared absorption layer is 5%, and the average grain diameter is 12nm.
And step S4: and (4) coating a fabric layer on the infrared absorption layer prepared in the step (S3) by using a scraper of a coating machine, wherein the distance between the scraper of the coating machine and the infrared absorption layer is 0.1mm, drying at 120 ℃, and cooling to 45 ℃ to prepare the fabric layer. The fabric layer contains a metal modified filler, the addition amount of the metal modified filler is 15%, the metal modified filler is a ball-milled Ag-Cu composite particle modified by metal silver, and the ball-milling mass ratio of Ag to Cu is 1:5. in the embodiment, the infrared emissivity of the surface of the infrared stealth fabric coating is reduced by ball-milling the Ag-Cu composite particles, the infrared stealth characteristic of the novel coating fabric is obviously improved, and the metal modified filler prepared by ball-milling the Ag-Cu composite particles has good corrosion resistance and impact resistance, so that the functionality of the coating fabric is enhanced.
Specific example 2
Fig. 1 is a schematic flow chart of a preparation method of an infrared stealth fabric coating fabric of the present invention, and it can be seen that the preparation method of the infrared stealth fabric coating fabric of the present invention comprises the following steps:
step S1: preparing terylene as base cloth, and carrying out pretreatment of cleaning, drying and presetting.
Step S2: and (3) preparing a thermal stabilizing layer with the thickness of 0.5mm by adopting a microcapsule phase change material above the base cloth pretreated in the step (S1) through a foam finishing process. In the embodiment, the core material of the microcapsule phase change material is nonadecane, the wall material of the microcapsule phase change material is polyurethane, the mass fraction of the core material is 70%, the core material has high latent heat, the melting point is close to the body temperature of a human body, the core material is suitable for clothes, and the wearing comfort of the infrared camouflage fabric is improved; and the polyurethane wall material fully exerts the advantages of polyurethane, so that a good heat preservation effect can be achieved, and the air holes in the polyurethane foaming structure can isolate the heat transfer between the polyurethane wall material and the outside, so that the detection of an infrared detector is avoided, and a good stealth effect is achieved.
And step S3: coating an infrared absorption layer on the thermal stability layer prepared in the step S2 by using a scraper of a coating machine, wherein the distance between the scraper of the coating machine and the thermal stability layer is 0.15mm, drying at 180 ℃, and cooling to 48 ℃ to prepare the infrared absorption layer; wherein, the infrared absorption layer contains nano far infrared finishing agent, which is used for carrying out secondary absorption consumption attenuation on radar waves which are not absorbed, the addition amount of the nano far infrared finishing agent in the infrared absorption layer is 12%, and the average grain diameter is 11nm.
And step S4: and (4) coating a fabric layer on the infrared absorption layer prepared in the step (S3) by using a scraper of a coating machine, wherein the distance between the scraper of the coating machine and the infrared absorption layer is 0.2mm, drying at 140 ℃, and cooling to 48 ℃ to prepare the fabric layer. The fabric layer contains a metal modified filler, the addition amount of the metal modified filler is 25%, the metal modified filler is metal silver modified ball-milled Ag-Cu composite particles, and the ball-milling mass ratio of Ag to Cu is 2:3. in the embodiment, the infrared emissivity of the surface of the infrared stealth fabric coating is reduced by ball-milling the Ag-Cu composite particles, the infrared stealth characteristic of the novel coating fabric is obviously improved, and the metal modified filler prepared by ball-milling the Ag-Cu composite particles has good corrosion resistance and impact resistance, so that the functionality of the coating fabric is enhanced.
Specific example 3
Fig. 1 is a schematic flow chart of a preparation method of an infrared stealth fabric coating fabric of the present invention, and it can be seen that the preparation method of the infrared stealth fabric coating fabric of the present invention comprises the following steps:
step S1: preparing nylon as base cloth, and carrying out pretreatment of cleaning, drying and presetting on the base cloth.
Step S2: and (2) preparing a thermal stabilizing layer with the thickness of 0.4mm by adopting a microcapsule phase change material above the base cloth pretreated in the step (S1) through a two-dipping and two-rolling process. In the embodiment, the core material of the microcapsule phase change material is composed of n-octadecane and n-eicosane according to a mass ratio of 1, the wall material of the microcapsule phase change material is polyurethane, the mass fraction of the core material is 65%, the core material has high latent heat and a melting point close to the body temperature of a human body, and is suitable for clothes, and the wearing comfort of the infrared camouflage fabric is improved; and the polyurethane wall material fully exerts the advantages of polyurethane, so that a good heat preservation effect can be achieved, and the air holes in the polyurethane foaming structure can isolate the heat transfer between the polyurethane wall material and the outside, so that the detection of an infrared detector is avoided, and a good stealth effect is achieved.
And step S3: coating an infrared absorption layer on the thermal stability layer prepared in the step S2 by using a scraper of a coating machine, wherein the distance between the scraper of the coating machine and the thermal stability layer is 0.1mm, drying at 160 ℃, and cooling to 48 ℃ to prepare the infrared absorption layer; wherein, the infrared absorption layer contains nano far infrared finishing agent, which is used for carrying out secondary absorption consumption attenuation on radar waves which are not absorbed, the addition amount of the nano far infrared finishing agent in the infrared absorption layer is 8 percent, and the average grain diameter is 12nm.
And step S4: and (4) coating a fabric layer on the infrared absorption layer prepared in the step (S3) by using a scraper of a coating machine, wherein the distance between the scraper of the coating machine and the infrared absorption layer is 0.1mm, drying at 130 ℃, and cooling to 48 ℃ to prepare the fabric layer. The fabric layer contains a metal modified filler, the addition amount of the metal modified filler is 20%, the metal modified filler is a ball-milled Ag-Cu composite particle modified by metal silver, and the ball-milling mass ratio of Ag to Cu is 1:4. in the embodiment, the infrared emissivity of the surface of the infrared stealth fabric coating is reduced by ball-milling the Ag-Cu composite particles, the infrared stealth characteristic of the novel coating fabric is obviously improved, and the metal modified filler prepared by ball-milling the Ag-Cu composite particles has good corrosion resistance and impact resistance, so that the functionality of the coating fabric is enhanced.
Specific example 4
An application of the infrared stealth fabric coating fabric is characterized in that the infrared stealth intelligent wearing object is woven by adopting the prepared infrared stealth fabric coating fabric.
The fabric layer, the infrared absorption layer, the thermal stabilization layer and the base cloth are sequentially arranged from the outer layer to the inner layer, and the metal modified filler is arranged in the fabric layer, so that the infrared emissivity of the surface of the infrared stealth fabric coating is remarkably reduced, the fabric has good stealth characteristics, and the overall corrosion resistance and impact resistance are enhanced; the nano far infrared finishing agent is arranged in the infrared absorption layer, so that secondary absorption consumption attenuation can be performed on radar waves which are not absorbed, and the stealth performance is enhanced; the microcapsule phase change material is arranged in the heat stabilizing layer, and the composition of the core material and the wall material of the microcapsule phase change material is specifically limited, so that the temperature change range of the microcapsule phase change material is close to the body temperature of a human body, the wearing comfort is enhanced, the air holes in the polyurethane structure can isolate the heat transfer between the microcapsule phase change material and the outside, the temperature change of the microcapsule phase change material is adjusted and stabilized to avoid the detection of an infrared detector, and the stealth effect is further improved.
The fabric is provided with the multiple functional layers, infrared reflection, absorption and temperature regulation are respectively carried out on the functional layers, the infrared stealth characteristic of the fabric coating fabric is obviously enhanced, the overall functionality is strong, popularization is facilitated, in addition, the durability of the fabric is improved through the layer-by-layer structure arrangement, namely the function of the inner functional layer is not influenced by the falling of the outer layer function, and the practicability is strong; the functional layers are integrally prepared in a layer-by-layer blade coating mode, the integral method is simple, the operation is easy, the production efficiency is high, the preparation cost can be saved to a certain extent, and the method is economical and feasible.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can understand that the changes or modifications within the technical scope of the present invention are included in the scope of the present invention, and therefore, the scope of the present invention should be subject to the protection scope of the claims.
Claims (10)
1. A preparation method of infrared stealth fabric coating fabric is characterized by comprising the following steps: the method comprises the following steps:
1) Preparing a piece of base cloth, and carrying out pretreatment of cleaning, drying and presetting on the base cloth;
2) Arranging a thermal stabilizing layer above the base cloth pretreated in the step 1);
3) Coating an infrared absorption layer on the thermal stability layer prepared in the step 2) by using a scraper of a coating machine, and carrying out knife coating on the infrared absorption layer T 1 Drying at a temperature, and cooling to a temperature t 1 To obtain an infrared absorption layer;
4) Coating a fabric layer on the infrared absorption layer prepared in the step 3) by using a scraper of a coating machine, and carrying out blade coating on the fabric layer at T 2 Drying at temperature, and cooling to temperature t 2 To prepare a fabric layer;
the material of the thermal stabilization layer is a microcapsule phase change material, the core material of the microcapsule phase change material is one or more of n-octadecane, n-nonadecane or n-eicosane, the wall material of the microcapsule phase change material is polyurethane, and the mass fraction of the core material is 60-70%; the infrared absorption layer contains a nano far infrared finishing agent; the fabric layer contains metal modified filler.
2. The preparation method of the infrared stealth fabric coating fabric according to claim 1, characterized in that: the thermal stabilization layer in the step 2) is prepared by adopting a microcapsule phase change material to carry out a two-dipping two-rolling process or a foam finishing process.
3. The preparation method of the infrared stealth fabric coating fabric according to claim 2, characterized in that: the thickness of the thermal stabilization layer is 0.3-0.5mm.
4. The preparation method of the infrared stealth fabric coating fabric according to claim 1, characterized in that: the addition amount of the nano far infrared finishing agent in the infrared absorption layer is 5-12%, and the average grain size of the nano far infrared finishing agent is less than 15nm.
5. The preparation method of the infrared stealth fabric coating fabric according to claim 4, characterized in that: step (ii) of3) The distance between the scraper of the coating machine and the thermal stability layer is 0.05-0.15mm, and the drying temperature T is 1 At 150-180 deg.C, and cooling temperature t 1 ＜50℃。
6. The preparation method of the infrared stealth fabric coating fabric according to claim 1, characterized in that: the addition amount of the metal modified filler in the fabric layer is 15-25%.
7. The preparation method of the infrared stealth fabric coating fabric according to claim 6, characterized in that: the metal modified filler is a ball-milling Ag-Cu composite particle modified by metal silver, and the ball-milling mass ratio of Ag to Cu is (1-2): (3-5).
8. The method for preparing the infrared stealth fabric coating fabric according to claim 7, characterized in that: the distance between the scraper of the coating machine and the infrared absorption layer in the step 4) is 0.1-0.2mm, and the drying temperature T 2 At 120-140 deg.C, and cooling at t 2 ＜50℃。
9. The preparation method of the infrared stealth fabric coating fabric according to claim 1, characterized in that: the base cloth is one of nylon or terylene.
10. Use of an infrared camouflage fabric coating face fabric prepared by the method of any one of claims 1 to 9, wherein: the infrared invisible intelligent wearing article is used for weaving the infrared invisible intelligent wearing article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210803848.2A CN115323794A (en) | 2022-07-07 | 2022-07-07 | Preparation method and application of infrared stealth fabric coating fabric |
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