Intelligent composite flocculation sheet

Abstract

The utility model discloses an intelligent composite flocculus, this intelligent composite flocculus includes the three -fold composite structure of phase change temperature adjusting layer, puffy intermediate layer and aerogel coating, further combines the unit superposition scheme of extensible, realizes the dynamic heat management under the environment of -20 DEG C to 60 DEG C, forms the aerogel coating in the micropore of solid-solid energy storage intelligent phase change material layer fixed aerogel particle, keeps the phase change enthalpy value greater than or equal to 30J / g when the unit area weight is less than or equal to 200g / m2 on the whole, satisfies the actual demand of various environment switching.

Description

Technical Field

[0001] This utility model relates to the field of clothing materials, and in particular to an intelligent composite wadding that achieves dynamic thermal management through a multi-layer composite structure. Background Technology

[0002] One of the basic functions of clothing is to keep warm and help humans adapt to different climatic conditions. In early production and life, people's living scenarios were relatively simple, and clothing fabric design was often limited to a single scenario. However, in modern society, people's production and living scope has expanded dramatically, and their activity scenarios have become more diverse. Changes in activity scenarios are often accompanied by changes in external temperature and humidity, requiring the human body to wear clothing that can adapt to different external environments as much as possible. However, the original design concept that only targets a single scenario cannot meet this dynamic need. For example, sportswear usually only considers the need for high heat dissipation and perspiration during exercise, but does not take into account the need for warmth before and after exercise when at rest; mountaineering clothing can adapt to harsh weather, but can cause discomfort due to excessive heat dissipation during rest; summer clothing is breathable in hot outdoor environments, but cannot provide sufficient warmth in air-conditioned environments.

[0003] These issues demonstrate that a single-scenario design approach can no longer meet the diverse needs of modern life. Clothing fabric design needs to take into account comfort in changing scenarios, and the same garment should provide good comfort and functionality in different scenarios.

[0004] Based on this, the inventor has conducted in-depth research on traditional clothing fabrics, hoping to design an intelligent composite wadding that can solve the above problems and adapt to different environments. Summary of the Invention

[0005] To overcome the above problems, the inventors conducted intensive research and designed an intelligent composite flocculent sheet. This intelligent composite flocculent sheet includes a triple composite structure of a phase change temperature regulating layer, a fluffy intermediate layer, and an aerogel coating. It is further combined with an scalable unit stacking scheme to achieve dynamic thermal management in environments ranging from -20℃ to 60℃. Aerogel particles are fixed in the micropores of the solid-solid energy storage intelligent phase change material layer to form an aerogel coating. Overall, the phase change enthalpy value is maintained at ≥30J / g when the unit area weight is ≤200g / m², meeting the practical needs of various environmental switching, thus completing this utility model.

[0006] Specifically, the purpose of this invention is to provide an intelligent composite flocculant. The intelligent composite floc includes at least one floc unit, which, from the inside out, includes a laminated phase change temperature regulating layer 1, two fluffy intermediate layers 2, a phase change temperature regulating layer 1, and an aerogel coating 3. The phase change temperature regulating layer 1 includes a solid-solid energy storage phase change temperature regulating nonwoven fabric, and the enthalpy value of the solid-solid energy storage phase change temperature regulating nonwoven fabric is above 45J / g. The fluffy intermediate layer 2 is a three-dimensional porous structure layer formed by interwoven animal fibers or fluffy cotton. The aerogel coating 3 includes a coating body with micropores distributed on its surface and aerogel particles embedded in the micropores; the pore size of the micropores is 0.05-0.1μm.

[0007] The thickness of the aerogel coating 3 is 0.01-1 mm; The micropores of the aerogel coating 3 are continuously distributed in a honeycomb pattern.

[0008] The aerogel coating 3 is a solid-solid energy storage phase change temperature regulation layer obtained by dissolving and drying. In the aerogel coating 3, the mass percentage of aerogel particles is 5%-14%.

[0009] In the wadding unit, the fluffy intermediate layer 2 is fused and bonded with the adjacent solid-solid energy storage phase change temperature regulating nonwoven fabric to form a nonwoven composite layer, and the two nonwoven composite layers are heat-fused or needle-punched.

[0010] The phase change temperature regulating layer 1 has a thickness of 0.1-10 mm; The thickness of the fluffy intermediate layer 2 is 0.3-15mm.

[0011] When the intelligent composite wadding is used as a fabric for summer T-shirts or business attire, the intelligent composite wadding consists of two wadding units. When the intelligent composite wadding is used as a spring and autumn clothing fabric, the intelligent composite wadding consists of 3 or 4 wadding units. When the intelligent composite wadding is used as a winter clothing fabric, the intelligent composite wadding consists of 4-6 wadding units or more wadding units.

[0012] The beneficial effects of this utility model include: (1) The intelligent composite wadding provided by this utility model can be used to make products such as cold-proof clothing, quilts, blankets, etc., in single or multiple layers, and has a wide range of applications. (2) According to the intelligent composite wadding provided by this utility model, the wadding is soft and thin. In particular, when it is used to make cold-proof clothing, the product has a phase change temperature regulating layer between the inner layer and the skin, which is not present in conventional cold-proof clothing. The outer layer has an aerogel coating with ultra-low thermal conductivity barrier, and an air-fluffy insulation layer is built in the middle. Therefore, it overcomes the defect of poor temperature comfort of ordinary wadding cold-proof clothing, and strengthens the barrier effect against the harsh cold environment outside. Attached Figure Description

[0013] Figure 1 This diagram shows a layer structure schematic of a floc unit in the intelligent composite floc of this application; Figure 2 This diagram shows a schematic of the nonwoven composite layer structure of the wadding unit in the intelligent composite wadding of this application.

[0014] Explanation of reference numerals in the attached figures 1-Phase change temperature regulation layer 2- Fluffy middle layer 3-Aerogel coating Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present invention will become clearer and more apparent.

[0016] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0017] This utility model provides an intelligent composite flocculent sheet, such as Figure 1 As shown, the intelligent composite floc includes at least one floc unit, which, from the inside out, includes a laminated phase change temperature regulating layer 1, two fluffy intermediate layers 2, a phase change temperature regulating layer 1, and an aerogel coating 3. The phase change temperature regulating layer 1 includes a solid-solid energy storage phase change temperature regulating nonwoven fabric, the enthalpy of which is above 45 J / g; the solid-solid energy storage phase change temperature regulating nonwoven fabric in this application is made of solid-solid energy storage smart phase change material meltblown.

[0018] The fluffy intermediate layer 2 is a three-dimensional porous structure layer formed by interwoven animal fibers or fluffy cotton; if the animal fibers are selected from wool, cashmere, etc., the fluffy intermediate layer has a moisture regain rate of more than 14% in a standard atmospheric environment and also has excellent moisture absorption properties, which can effectively absorb the sweat excreted by the skin during the wearing process.

[0019] The aerogel coating 3 comprises a coating body with micropores distributed on its surface and aerogel particles embedded in the micropores; the pore size of the micropores is 0.05-0.1 μm. Aerogel is one of the solid materials with the lowest known thermal conductivity, which can effectively prevent heat transfer and provide excellent thermal insulation performance. Moreover, aerogel is very light and adds almost no weight to clothing.

[0020] In a preferred embodiment, in the wadding unit, the fluffy intermediate layer 2 is melt-bonded with the adjacent solid-solid energy storage phase change temperature regulating nonwoven fabric to form a nonwoven composite layer. Specifically, the solid-solid energy storage phase change temperature regulating material is made into nonwoven fabric by melt-blowing using a meltblown machine. After the meltblown filaments are sprayed out in the meltblown machine and before the nonwoven fabric is formed, animal fibers or fluffy cotton are sprayed in to form the nonwoven composite layer. Two nonwoven composite layers are placed opposite each other, with two fluffy intermediate layers 2 abutting against each other. They are then joined together by hot-melt stitching, needle punching, or quilting. This involves pressing the layers together with a sewing machine or quilting machine to form the desired structure, or applying adhesive and using a hot-melt stitching machine to sew the layers together to form a composite wadding, or using a needle punching machine to create the composite wadding. Preferably, the material produced directly has one side as a phase change material and the other side as cashmere or a fluffy surface. This material is folded in half, or the fluffy layers of two materials are placed face to face, and then quilted, stitched, or otherwise sewn together to form a composite wadding.

[0021] In a preferred embodiment, the thickness of the aerogel coating 3 is 0.01-0.3 mm; the micropores of the aerogel coating 3 are continuously distributed in a honeycomb pattern.

[0022] Preferably, the main body of the aerogel coating 3 is a silica aerogel insulation layer obtained by dispersion and drying; the formation process of the aerogel coating 3 is as follows: Step 1: Dissolve the solid-solid energy storage phase change temperature regulating material in an organic solvent, then add a foaming agent and a hydrophilic aerogel with a particle size between 0.1 and 0.05 micrometers. Mix thoroughly and coat the mixture onto one side of the phase change temperature regulating layer of the non-woven composite layer. Dry in an environment of 95-100℃ for 40-60 seconds to evaporate the solvent and allow foaming to occur. The solvent can vaporize and evaporate between 80-95℃ and can be dimethyl sulfoxide or other solvents.

[0023] Step 2: Atomize the mixture of water-based amino silicone softener and water (mixing ratio 1%) and spray it evenly on the outer surface of the coating layer of the non-woven composite layer, then air dry or bake dry.

[0024] Step 3: The waste gas containing organic solvents is first passed through a pretreatment device to remove impurities such as particulate matter and droplets. Then it enters the adsorber, where it comes into full contact with the adsorbent and the organic solvent is adsorbed. When the adsorbent reaches adsorption saturation, desorption is performed by heating, depressurizing, or purging to desorb the organic solvent from the surface of the adsorbent, thereby achieving the regeneration and recycling of the adsorbent. The desorbed organic solvent-rich gas can be recovered to obtain high-purity ethyl acetate through subsequent treatment methods such as condensation and distillation, which can then be reused for dissolving intelligent temperature-regulating materials.

[0025] Using dissolved smart temperature-regulating materials as adhesives not only allows aerogel powder and foaming agents to adhere to the surface of nonwoven composites, but also maximizes the amount of smart materials used, thereby improving energy storage and cold protection effects.

[0026] In the aerogel coating 3, the mass percentage of aerogel particles is 5%-14%.

[0027] In a preferred embodiment, the thickness of the phase change temperature regulating layer 1 is 0.3 mm; The thickness of the fluffy intermediate layer 2 is 0.5 mm.

[0028] In a preferred embodiment, when the smart composite wadding is used as a fabric for summer T-shirts or business attire, the smart composite wadding consists of two wadding units; its unit area weight is 120g / m². When the intelligent composite wadding is used as a spring and autumn clothing fabric, the intelligent composite wadding consists of 3 or 4 wadding units; when it consists of 4 wadding units, its unit area weight is 240g / m². When the intelligent composite wadding is used as a winter clothing fabric, the intelligent composite wadding consists of 4-6 wadding units or more wadding units; when it consists of 6 wadding units, its unit area weight is 360g / m².

[0029] The present invention has been described above with reference to preferred embodiments; however, these embodiments are merely exemplary and serve only an illustrative purpose. Based on this, various substitutions and improvements can be made to the present invention, all of which fall within the protection scope of the present invention.

Claims

1. A smart composite flocculent sheet, characterized in that, The intelligent composite floc includes at least one floc unit, which, from the inside out, includes a laminated phase change temperature regulating layer (1), two fluffy intermediate layers (2), a phase change temperature regulating layer (1), and an aerogel coating (3). The phase change temperature regulating layer (1) includes a solid-solid energy storage phase change temperature regulating nonwoven fabric, wherein the enthalpy value of the solid-solid energy storage phase change temperature regulating nonwoven fabric is above 45J / g. The fluffy intermediate layer (2) is a three-dimensional porous structure layer formed by interwoven animal fibers or fluffy cotton; The aerogel coating (3) includes a coating body with micropores distributed on its surface and aerogel particles embedded in the micropores; the pore size of the micropores is 0.05-0.1μm.

2. The intelligent composite flocculent sheet according to claim 1, characterized in that, The thickness of the aerogel coating (3) is 0.01-0.5 mm.

3. The intelligent composite flocculent sheet according to claim 2, characterized in that, The main body of the aerogel coating (3) is a silica aerogel heat insulation layer obtained by dispersion and drying.

4. The intelligent composite flocculent sheet according to claim 1, characterized in that, In the wadding unit, the fluffy intermediate layer (2) is melt-bonded with the adjacent solid-solid energy storage phase change temperature regulating nonwoven fabric to form a nonwoven composite layer, and the two nonwoven composite layers are heat-fused, needle-punched, or quilted.

5. The intelligent composite flocculent sheet according to claim 1, characterized in that, The thickness of the phase change temperature regulating layer (1) is 0.1-10 mm; The thickness of the fluffy intermediate layer (2) is 0.3-15 mm.

6. The intelligent composite flocculent sheet according to claim 1, characterized in that, When the intelligent composite wadding is used as a fabric for summer T-shirts or business attire, the intelligent composite wadding consists of one or more wadding units. When the intelligent composite wadding is used as a spring and autumn clothing fabric, the intelligent composite wadding is composed of three or more wadding units. When the intelligent composite wadding is used as a winter clothing fabric, the intelligent composite wadding consists of 4-6 wadding units.

Images