Aerogel heat insulation coating fabric

Abstract

The utility model discloses an aerogel heat insulation coating fabric which comprises a shading layer, a tear-resistant base cloth layer, a heat insulation layer and a waterproof layer which are sequentially compounded, and an aerogel heat insulation coating is arranged on the side, away from the tear-resistant base cloth layer, of the shading layer; the shading layer is formed by interweaving black polyester fiber filaments; and the tear-resistant base cloth layer is a three-way fabric. Based on the aerogel heat insulation coating fabric, the hydrophobic SiO2 aerogel coating has very excellent thermal stability, so that the fabric can obtain good heat insulation performance, the shading layer can reduce the light transmission brightness of the fabric, and the tear-resistant base cloth layer provides excellent mechanical property for the whole fabric; the thermal insulation layer further enhances the overall thermal insulation performance of the fabric, is suitable for manufacturing tent cloth, and avoids the problem that the temperature in a tent is too high in a high-temperature environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of thermal barrier coating fabrics, specifically a kind of aerogel thermal barrier coating fabric. BACKGROUND

[0002] In recent years, extreme high temperature weather frequently appears in all over the world, which brings many inconveniences to people's production and life. For the tent that people often use in production and life, the tent cloth commonly seen in the market generally only considers sun-shading function in production, and the heat insulation function is relatively weak. In high temperature weather, the tent cloth is easy to cause the problem of over-high temperature in tent due to its own functional limitation. The thermal barrier coating fabric coats the coating with heat insulation function on the surface of fabric, inhibits the temperature rise of coating fabric surface, effectively reduces the internal environment temperature of fabric cover, has energy-saving cooling effect and good application prospect. Therefore, the application provides a kind of aerogel thermal barrier coating fabric. SUMMARY

[0003] The utility model aims at providing a kind of aerogel thermal barrier coating fabric, which is suitable for making tent cloth and avoiding the problem of over-high temperature in tent in high temperature environment.

[0004] To solve the above technical problems, the utility model aims at realizing as follows: a kind of aerogel thermal barrier coating fabric, comprising: light-shielding layer, anti-tear base cloth layer, heat insulation layer and waterproof layer are sequentially compounded, the side away from the anti-tear base cloth layer of the light-shielding layer is provided with aerogel thermal barrier coating layer;The light-shielding layer is interwoven by black polyester fiber filament;The anti-tear base cloth layer is three-dimensional fabric.

[0005] On the basis of the above scheme and as a preferred scheme of the above scheme: the aerogel thermal barrier coating is hydrophobic SiO2 Aerogel coating.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the anti-tear base cloth layer is interwoven by high-strength nylon 6 filament.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the heat insulation layer is needle-punched non-woven composite SiO2 Aerogel layer.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the waterproof layer includes high-moisture-permeable thermoplastic polyurethane microporous membrane and high-density polyester plain weave cloth, and the high-moisture-permeable thermoplastic polyurethane microporous membrane is close to the heat insulation layer.

[0009] The aero-gel heat insulation coating fabric has the advantages that the hydrophobic SiO2 aero-gel coating layer has excellent thermal stability, the fabric has good heat insulation performance, the light shielding layer can reduce the light transmission brightness of the fabric, the anti-tearing base cloth layer provides excellent mechanical properties for the whole fabric, the heat insulation layer further enhances the heat insulation performance of the whole fabric, and the aero-gel heat insulation coating fabric is suitable for manufacturing tent cloth and avoids the problem of excessively high temperature in the tent in a high-temperature environment. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 A structure diagram of an aero-gel heat insulation coating fabric according to the present application is shown in the figure.

[0011] Figure 2 A structure diagram of a three-way fabric according to the present application is shown in the figure.

[0012] In the figure, 1 is a light shielding layer, 2 is an anti-tearing base cloth layer, 3 is a heat insulation layer, 4 is a waterproof layer, and 5 is an aero-gel heat insulation coating layer. DETAILED DESCRIPTION

[0013] The present application will be further described below in combination with the drawings and specific embodiments.

[0014] In combination with the drawings, Figure 1 The aero-gel heat insulation coating fabric comprises a light shielding layer 1, an anti-tearing base cloth layer 2, a heat insulation layer 3 and a waterproof layer 4 which are sequentially compounded, and the light shielding layer 1 is provided with an aero-gel heat insulation coating layer 5 on the side away from the anti-tearing base cloth layer 2.

[0015] Specifically, the light shielding layer 1, the anti-tearing base cloth layer 2, the heat insulation layer 3 and the waterproof layer 4 are compounded by a hot melt adhesive net film.

[0016] The three-way fabric is interwoven by three systems of yarns and has good structural stability and the same mechanical properties.

[0017] Further, the aerogel thermal insulation coating 5 is a hydrophobic SiO2 aerogel coating. SiO2 aerogel is a new type of lightweight nano-porous material with a three-dimensional network structure and filled with a large number of gaseous dispersion media in the network skeleton. The porosity is as high as 80%-99%, the specific surface area is as high as 400-1000㎡ / g, and the thermal conductivity is extremely low. It is a thermal insulation material with excellent performance. The hydrophobic SiO2 aerogel is prepared by using tetraethyl orthosilicate as the silicon source, ethanol as the solvent, and trimethylchlorosilane as the surface modifier by acid-base catalytic sol-gel method and normal pressure drying. The non-hydrophobic SiO2 aerogel is dispersed in deionized water, and an appropriate amount of wetting dispersant is added. After magnetic stirring until uniform dispersion, an appropriate amount of adhesive is added and continues to stir for 30 minutes. Finally, an appropriate amount of thickening agent and defoaming agent are added and stirred uniformly to obtain the hydrophobic SiO2 aerogel coating agent. The prepared coating agent is coated on the side of the light shielding layer 1 away from the tear-resistant base fabric layer 2 by using a wire rod integrated coating machine. In the hydrophobic SiO2 aerogel coating, the aerogel particles are uniformly distributed, have a cylindrical multi-branch nano-porous three-dimensional network structure, and have very excellent thermal stability. The hydrophobic SiO2 aerogel coating can make the fabric have good thermal insulation performance, and the molecular structure of the fabric fibers before and after coating does not change, and the tensile breaking strength changes little.

[0018] Further, the tear-resistant base fabric layer 2 is interwoven by high-strength nylon 6 filaments. The high-strength nylon 6 filament is prepared by using semi-dull polyamide 6 chips with a relative viscosity of 2.485 as raw material through melt spinning and multi-stage stretching process. The high-strength nylon 6 filament has mechanical properties close to those of nylon 6 industrial yarn, so the fabric woven from it has good tear resistance.

[0019] Further, the thermal insulation layer 3 is a needle-punched non-woven composite SiO2 aerogel layer. Specifically, the needle-punched non-woven composite SiO2 aerogel layer is PP / SiO2 composite aerogel. The PP / SiO2 composite aerogel is prepared by using PP needle-punched non-woven fabric as a reinforcing body, using tetraethyl orthosilicate as a silicon source, using acid-base two-step method and sol-gel method, using trimethylchlorosilane as a hydrophobic modifier, and then using normal pressure drying method. The SiO2 aerogel adheres to or fills the fiber surface and pores inside the PP needle-punched non-woven fabric, without changing the crystal structure of the raw material molecules in the PP non-woven fabric. It can improve the shortcomings of traditional SiO2 aerogel such as poor toughness and fragility. The PP / SiO2 composite aerogel has good flexibility and toughness, lower thermal conductivity, and excellent thermal insulation performance.

[0020] Further, the waterproof layer 4 comprises a high-moisture-permeable thermoplastic polyurethane microporous membrane and a high-density polyester plain woven fabric, and the high-moisture-permeable thermoplastic polyurethane microporous membrane is close to the heat insulation layer 3. Specifically, the high-moisture-permeable thermoplastic polyurethane microporous membrane and the high-density polyester plain woven fabric are bonded together by TPU hot melt adhesive powder. After water absorption test and hydrostatic pressure test, the waterproof effect of the waterproof layer 4 is 5 levels, the hydrostatic pressure value is 80kPa, it can prevent rainstorm, and the waterproof performance is excellent.

[0021] The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor based on the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment based on the existing technology within the scope of the claims should be within the scope of protection.

Claims

1. An aerogel thermal barrier coating fabric, characterized by, The application relates to a composite thermal insulation fabric, which comprises a light-shielding layer (1), a tear-resistant base cloth layer (2), a thermal insulation layer (3) and a waterproof layer (4) which are sequentially compounded, the light-shielding layer (1) is provided with an aerogel thermal insulation coating (5) on the side far from the tear-resistant base cloth layer (2), the light-shielding layer (1) is interwoven by black polyester fiber filaments, and the tear-resistant base cloth layer (2) is a three-dimensional fabric. The aerogel thermal insulation coating (5) is a hydrophobic SiO2 aerogel coating.

2. An aerogel thermal barrier coating fabric according to claim 1, wherein, The tear-resistant base cloth layer (2) is interwoven by high-strength nylon 6 filaments.

3. An aerogel thermal barrier coating fabric according to claim 1, wherein, The thermal insulation layer (3) is a needle-punched non-woven composite SiO2 aerogel layer.

4. An aerogel thermal barrier coating fabric according to claim 1, wherein, The waterproof layer (4) comprises a high-moisture-permeable thermoplastic polyurethane microporous membrane and a high-density polyester plain woven fabric, and the high-moisture-permeable thermoplastic polyurethane microporous membrane is close to the thermal insulation layer (3).

5. An aerogel thermal barrier coating fabric according to claim 1, wherein, ​

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