Multifunctional outdoor jacket made of aerogel composite material

Abstract

The utility model discloses a multifunctional outdoor jacket made of aerogel composite materials, and relates to the technical field of composite fabrics. The shell layer comprises a high-density light nylon fabric layer, an ePTFE film layer and a PU protective coating, and the three layers are compounded together through hot pressing; the detachable liner layer comprises a soft shell fabric layer and an aerogel filler interlayer; the high-density light nylon fabric layer comprises a water repellent layer and superfine nylon fabric base cloth; and the water-repellent layer is formed by coating a SiO2 nano material on superfine nylon fabric base cloth. The composite fabric has the weatherproof characteristic of nylon fabric, the moisture permeability characteristic of the PTFE film and the comfort of PU, the detachable inner container is of a filling type structure and aims at providing flexibility, heat retention property and the function of being easy to clean, and the graphene aerogel fibers subjected to PI composite modification are selected as filling materials, so that the composite fabric has the advantages of being simple in structure and convenient to use. The inner container is endowed with the characteristics of heat preservation, static resistance, moisture absorption and heating.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite fabrics, in particular to a multifunctional jacket made of aerogel composite material. Background Art

[0002] Composite fabrics are made by combining two or more different materials through specific processing methods to form textiles with multiple layers. They combine the advantages of different materials to achieve performance improvements that cannot be achieved by a single material. Depending on the materials used and the composite process, composite fabrics can be divided into laminated fabrics, coated fabrics, sandwich fabrics and composite fiber fabrics; laminated fabrics are formed by laminating two layers or chopped fabrics with an adhesive or hot melt method. This type of fabric usually includes a layer of membrane material with breathable, waterproof or windproof functions. Membrane materials include polyurethane membrane and polytetrafluoroethylene membrane, etc., which are used to improve the functionality of the fabric and are commonly found in waterproof and breathable functional jackets; coated fabrics are a layer of polymer coating material coated on the surface of the fabric to give it waterproof, anti-fouling and oil-proof functions. Common coating materials include polyvinyl chloride, polyurethane and silicone. This type of fabric is often used in waterproof products such as raincoats and tents; sandwich fabrics are thermal insulation materials or functional materials added between two layers of fabric, such as thermal insulation cotton, foam, non-woven fabrics, etc. This type of fabric is usually used for warmth, protection or structural reinforcement, and is often used in down jackets, thermal clothing, industrial protective clothing, etc.; composite fiber fabrics are formed by compounding different materials during the fiber manufacturing process to form multifunctional fibers. For example, co-spinning or coating technology is used to produce fibers with functions such as moisture absorption and perspiration removal, antibacterial and deodorizing. Such fabrics are often used in sportswear, underwear, medical protection and other fields.

[0003] Traditional jackets have a single function and a single usage scenario. For example, a single jacket is generally used for light outdoor activities or in areas with higher temperatures in the summer, and serves the purpose of protecting against wind, sun and rain. A three-in-one jacket has three usage scenarios: wearing the outer shell alone, wearing the inner liner as a thermal jacket alone, and the combination of the two. Wearing the outer shell alone can protect against moisture, wind and rain, and is suitable for summer outdoor adventure activities. Wearing the inner liner as a thermal jacket alone can keep warm and breathable, and is suitable for autumn and winter indoor activities. A two-in-one jacket can combine the functions of the outer shell and the single layer into one, and is suitable for cold winter outdoor activities. Therefore, in terms of practicality, a jacket with a three-in-one design is the first choice for most people. The liner can be removed according to different climates to select the most comfortable wearing state. The purpose of this technical solution is to propose a new composite fabric based on existing jackets, so that the windproof, rainproof, breathable and moisture-permeable, and wear-resistant and comfortable performance of the jacket can be further improved to meet the needs of different temperature conditions and activities. Utility Model Content

[0004] The utility model provides a multifunctional jacket made of aerogel composite material, which adopts a three-layer outer shell structure, so that the outer shell of the jacket has the wind and rainproof properties of nylon fabric, the moisture permeability of PTFE film and the comfort of PU, and the detachable liner adopts a filled structure, aiming to provide flexibility, warmth retention and easy cleaning. PI composite modified graphene aerogel fiber is selected as the filling material, which gives the liner the characteristics of warmth retention, anti-static and moisture absorption and heat generation. These advantages make the three-in-one jacket an ideal choice for outdoor sports; in summary, the problems in the background technology are solved.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model discloses an aerogel composite multifunctional jacket, comprising a waterproof and moisture-permeable outer shell layer and a warm and breathable detachable inner liner layer, wherein the outer shell layer and the detachable inner liner layer are connected together by Velcro;

[0007] The outer shell layer includes a high-density lightweight nylon fabric layer on the outer layer, a microporous moisture-permeable ePTFE film layer on the middle layer, and a PU protective coating on the inner layer. The three layers are laminated together by heat pressing.

[0008] The detachable inner liner layer includes a soft shell fabric layer and an aerogel filler interlayer.

[0009] Furthermore, the high-density lightweight nylon fabric layer includes a water-repellent layer and an ultra-fine nylon fabric base cloth; the water-repellent layer is formed by coating SiO2 nanomaterial on the ultra-fine nylon fabric base cloth.

[0010] Furthermore, the SiO2 nanomaterial is 50-250 nanometers.

[0011] Furthermore, the surface of the ePTFE film layer has a microporous structure with a porosity of 85%. The microporous structure adopts a gradient design, and the pore size gradually decreases from the inside to the outside. The pore size of the inner layer is 0.5 μm, and the pore size of the outer layer is 0.1-0.2 μm.

[0012] Furthermore, the ePTFE film layer is compounded with a PU protective coating layer, and the thickness of the PU protective coating layer is 1-10 μm.

[0013] Furthermore, the soft shell fabric layer adopts a double-layer structure, including a high-density polyester fabric base cloth on the outer surface and fluff on the inner lining, and a silicone finishing agent is added to the fluff.

[0014] Furthermore, the model of the organosilicon finishing agent is NuWet 550.

[0015] Furthermore, the aerogel filler interlayer is formed by random filling of polyimide aerogel fibers modified by cross-linking of graphene oxide.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The utility model uses a three-layer shell fabric, which makes the shell layer have the properties of windproof and rainproof, breathable and moisture-permeable, wear-resistant and comfortable fabric. The polyimide aerogel fiber modified by graphene cross-linking gives the liner layer the properties of warmth preservation, anti-static, moisture absorption and heat generation. In particular, the microporous gradient design on the ePTFE film layer effectively improves the perspiration and moisture wicking properties of the fabric and the wearing comfort of the human body.

[0018] (2) The detachable Velcro design can be easily removed or reattached according to weather changes, allowing the jacket to adapt to different temperature conditions and activity requirements.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the outer shell interlayer structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the interlayer structure of the inner liner of the present utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1-Outer shell layer, 2-Removable liner layer, 3-High-density lightweight nylon fabric layer, 301-Water-repellent layer, 302-Ultrafine nylon fabric base fabric, 4-ePTFE film layer, 401-Microporous structure, 5-PU protective coating, 6-Soft shell fabric layer, 601-High-density polyester fabric base fabric, 602-Villi, 7-Aerogel filler interlayer, 701-Polyimide aerogel fiber. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that terms such as "middle", "inner layer", "outer layer", "surface", "thickness", "inside", etc., which indicate orientation or positional relationship, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] See also Figure 1-2 As shown, the utility model is an aerogel composite multifunctional jacket, comprising a waterproof and moisture-permeable outer shell layer 1 and a warm and breathable detachable inner liner layer 2, wherein the outer shell layer 1 and the detachable inner liner layer 2 are connected together by Velcro;

[0028] It should be noted that the Velcro design makes the removal and installation of the detachable liner layer 2 very simple, and does not require complicated operations, only needs to be torn and fitted, which is convenient for users to quickly adjust in different scenarios. Users can easily switch the use of the liner according to environmental changes, such as adding a warm liner when it is cold and removing the liner when it is warm, to adapt to different climatic conditions and user needs. The Velcro detachable liner is practical, convenient, flexible, and beautiful, and is especially suitable for multi-functional scenarios.

[0029] The outer shell layer 1 comprises an outer high-density, lightweight nylon fabric layer 3, an intermediate, microporous, breathable ePTFE film layer 4, and an inner PU protective coating 5. The three layers are heat-pressed together. In this embodiment, the high-density, lightweight nylon fabric layer 3 is made of 100% nylon with a 0.5-cell inner pore size, a width of 145 cm, a weight of 105 g, and a cell size of only 0.5 cm, creating a delicate and exquisite look. The ePTFE film layer 4 is an existing fabric, made by laminating a microporous polytetrafluoroethylene membrane with ordinary fabric through a special process. This fabric combines the excellent waterproof and breathable properties of the ePTFE membrane, allowing sweat vapor to quickly pass through the fabric without causing a stuffy feeling, making it a top-tier waterproof and breathable material currently available.

[0030] The detachable inner liner layer 2 includes a soft shell fabric layer 6 and an aerogel filler interlayer 7 .

[0031] like Figure 1As shown, the ePTFE film layer 4 contains a large number of microporous structures 401 with a porosity of up to 85%. The microporous structure 401 adopts temperature and pressure control technology to achieve a gradient design of pore size, that is, the pore size gradually decreases from the inside to the outside. The inner layer pore size is about 0.5 microns, and the outer layer pore size is 0.1-0.2 microns.

[0032] It should be noted that the ePTFE film 4 is prepared through a mechanical stretching process, so that a large number of interconnected microporous structures are formed inside it. These microporous structures are arranged in a honeycomb shape and have a high porosity; the surface layer is designed with smaller micropores to enhance the waterproof effect, while the lower layer is designed with larger micropores to improve breathability and sweat-wicking ability.

[0033] like Figure 1 As shown, the PU protective coating 5 is prepared by a coating process and hot-pressed on the inner surface of the ePTFE film, with a thickness of 1-10 microns; it should be noted that the flexibility of PU combined with the mechanical strength of ePTFE makes the outer shell layer 1 excellent in wear resistance, tear resistance and tensile strength, and can also increase the wearing comfort when wearing the outer shell alone.

[0034] like Figure 2 As shown, the softshell fabric layer 6 features a two-layer structure, consisting of a high-density polyester base fabric 601 on the outer surface and a fleece 602 lining. The fleece 602 is treated with a silicone finish; the silicone finish is NuWet 550. It should be noted that the inner side of the softshell fabric layer 6 is brushed to create a suede surface, providing a more comfortable feel and enhanced warmth. The raised fabric creates a fluffy structure that effectively traps air, enhancing its warmth retention. The fleece layer also absorbs perspiration to a certain extent, which is then quickly dissipated through the capillary action of the fleece surface, helping to keep the body dry.

[0035] like Figure 1 and Figure 2 As shown, the aerogel fiber filler interlayer 4 is formed by randomly filling polyimide (PI) aerogel fibers 401 cross-linked with graphene oxide using a segmented filling process. Polyimide (PI) aerogel fibers 401 cross-linked with graphene oxide are conventionally used, as described in "Chemically Modified Graphene Oxide Cross-Linked Polyimide Aerogel" (Acta Physico-Chimica Sinica, 2015, by Liang Yi, Lu Yun, Yao Weishang, et al.). This material allows the graphene oxide to form a uniformly distributed reinforcement network within the polyimide aerogel fibers, improving overall mechanical properties.

[0036] When in use, the Velcro detachable liner design features convenient assembly and disassembly, easy cleaning, multi-season applicability and enhanced warmth. The composite use of the ePTFE film layer and the PU protective coating combines the advantages of both to form a high-performance material with waterproof breathability, weather resistance, mechanical strength and comfort. The fleece soft shell fabric is a multi-purpose fabric that combines comfort, warmth and functionality. The fleece treatment of the inner layer can effectively capture and store heat emitted by the human body, thereby providing additional warmth. The fleece layer can also absorb sweat to a certain extent and quickly diffuse it through the capillary action of the fleece surface, helping to keep the body dry. The polyimide PI aerogel fiber modified by cross-linking graphene oxide (GO) is a high-performance composite material that combines the excellent properties of graphene oxide and polyimide. It has excellent properties such as light weight, high strength, thermal insulation and high temperature resistance. It is suitable for the production of lightweight thermal insulation materials. As the filling layer of the liner, it not only has the characteristics of heat preservation and light weight, but also provides the antistatic and antibacterial properties of graphene.

[0037] To sum up, this three-in-one jacket is a flexible and comprehensive outdoor clothing. It not only integrates the three functions of wind and rain resistance, sweat and moisture permeability, and breathable warmth, but also provides three wearing methods to adapt to various climates. Whether it is to deal with cold, humid or windy environments, the three-in-one jacket is a flexible and practical choice.

[0038] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multifunctional jacket made of an aerogel composite material, comprising a waterproof and breathable outer shell (1) and a detachable inner liner (2) for warmth and breathability, wherein the outer shell (1) and the detachable inner liner (2) are connected together by Velcro, and characterized in that: The outer shell layer (1) comprises a high-density lightweight nylon fabric layer (3) located on the outer layer, a microporous moisture-permeable ePTFE film layer (4) located on the middle layer, and a PU protective coating layer (5) located on the inner layer, and the three layers are laminated together by heat pressing; The detachable inner liner layer (2) comprises a soft shell fabric layer (6) and an aerogel filler interlayer (7).

2. The aerogel composite multifunctional jacket according to claim 1, characterized in that: The high-density lightweight nylon fabric layer (3) comprises a water-repellent layer (301) and an ultra-fine nylon fabric base cloth (302); the water-repellent layer (301) is formed by coating SiO2 nanomaterial on the ultra-fine nylon fabric base cloth (302).

3. The aerogel composite multifunctional jacket according to claim 2, characterized in that: The SiO2 nanomaterial is 50-250 nanometers.

4. The aerogel composite multifunctional jacket according to claim 1, characterized in that: The surface of the ePTFE film layer (4) has a microporous structure (401) with a porosity of 85%. The microporous structure (401) adopts a gradient design, and the pore size gradually decreases from the inside to the outside. The pore size of the inner layer is 0.5 μm, and the pore size of the outer layer is 0.1-0.2 μm.

5. The aerogel composite multifunctional jacket according to claim 1, characterized in that: The ePTFE film layer (4) is compounded with the PU protective coating (5), and the thickness of the PU protective coating (5) is 1-10 μm.

6. The aerogel composite multifunctional jacket according to claim 1, characterized in that: The soft shell fabric layer (6) adopts a double-layer structure, comprising a high-density polyester fabric base cloth (601) on the outer surface and fluff (602) on the inner surface, wherein an organic silicon finishing agent is added to the fluff (602).

7. The aerogel composite multifunctional jacket according to claim 6, characterized in that: The model of the organosilicon finishing agent is NuWet 550.

8. The aerogel composite multifunctional jacket according to claim 6, characterized in that: The aerogel filler interlayer (7) is formed by random filling of polyimide aerogel fibers (701) modified by cross-linking of graphene oxide.

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