Aramid fiber and carbon fiber composite thermal insulation material

Abstract

The utility model discloses an aramid fiber and carbon fiber composite thermal insulation material, which belongs to the technical field of composite thermal insulation materials, and adopts the technical scheme that the aramid fiber and carbon fiber composite thermal insulation material comprises an external reinforced aramid fiber layer, and a middle thermal insulation aluminum silicate fiber layer is arranged at the bottom of the external reinforced aramid fiber layer; an inner-layer synergistic carbon fiber layer is arranged at the bottom of the middle heat preservation aluminum silicate fiber layer, and protective layers are arranged on the sides, away from the middle heat preservation aluminum silicate fiber layer, of the inner-layer synergistic carbon fiber layer and the outer reinforced aramid fiber layer; the outer reinforced aramid fiber layer, the middle heat preservation aluminum silicate fiber layer and the inner synergistic carbon fiber layer are compounded, the outer aramid fiber layer provides mechanical protection and reinforcement effects, and the middle heat preservation aluminum silicate fiber layer focuses on efficient heat preservation; the inner synergetic carbon fiber layer can enhance the overall strength and is matched with the outer reinforced aramid fiber layer, the effect of preventing aluminum silicate fibers from escaping into air is achieved, and therefore the heat preservation performance is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to composite thermal insulation material technical field, especially relates to a kind of aramid fiber, carbon fiber composite thermal insulation material. BACKGROUND

[0002] With the rapid development of science and technology and the high attention of various industries to energy utilization and environmental protection, the performance requirements of thermal insulation materials are increasingly stringent, and traditional thermal insulation materials gradually expose many limitations in practical application.

[0003] The existing aluminum silicate fiber has been widely used in the thermal insulation field for a long time, and it has certain thermal insulation performance, which can reduce heat transfer to a certain extent. However, the aluminum silicate fiber itself has some problems that are difficult to overcome. The aluminum silicate fiber is easily dispersed into the air during use, which can cause the thermal insulation performance of the thermal insulation material to gradually decrease over time, affecting the thermal insulation effect.

[0004] Therefore, an aramid fiber and carbon fiber composite thermal insulation material is proposed. UTILITY MODEL CONTENT

[0005] The utility model aims to provide an aramid fiber and carbon fiber composite thermal insulation material, which can solve the problem that the existing aluminum silicate fiber has been widely used in the thermal insulation field for a long time, and it has certain thermal insulation performance, which can reduce heat transfer to a certain extent. However, the aluminum silicate fiber itself has some problems that are difficult to overcome. The aluminum silicate fiber is easily dispersed into the air during use, which can cause the thermal insulation performance of the thermal insulation material to gradually decrease over time, affecting the thermal insulation effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an aramid fiber and carbon fiber composite thermal insulation material, comprising an outer reinforced aramid fiber layer, an intermediate thermal insulation aluminum silicate fiber layer is arranged at the bottom of the outer reinforced aramid fiber layer, and an inner layer cooperates with a carbon fiber layer is arranged at the bottom of the intermediate thermal insulation aluminum silicate fiber layer, and the inner layer cooperates with a carbon fiber layer and the outer reinforced aramid fiber layer are arranged with a protective layer on the side away from the intermediate thermal insulation aluminum silicate fiber layer.

[0007] The protective layer comprises a moisture-resistant coating, and the moisture-resistant coating is arranged on the side close to the outer reinforced aramid fiber layer and the inner layer cooperates with a carbon fiber layer, respectively, and the other side of the moisture-resistant coating is provided with a weather-resistant coating.

[0008] Preferably, the aramid fiber of the outer reinforced aramid fiber layer is composed of Nomex aramid fiber, and the weaving process is a three-dimensional weaving process.

[0009] Preferably, the intermediate heat preservation aluminum silicate fiber layer adopts aluminum silicate fibers with a diameter of 5-10 microns and is uniformly dispersed between the outer reinforced aramid fiber layer and the inner layer of carbon fibers.

[0010] Preferably, the inner layer of carbon fibers adopts T300 carbon fibers and the weaving process is a three-dimensional weaving process.

[0011] Preferably, the moisture-resistant coating is composed of an organic silicone resin coating and is uniformly coated on the side close to the inner layer of carbon fibers and the outer reinforced aramid fiber layer.

[0012] Preferably, the weather-resistant coating is composed of a weather-resistant acrylate material and is uniformly coated on the side close to the moisture-resistant coating.

[0013] Preferably, the inner layer of carbon fibers and the outer reinforced aramid fiber layer are provided with a dispersion-preventing coating on the side close to the intermediate heat preservation aluminum silicate fiber layer, and the dispersion-preventing coating is composed of a polyurethane coating and is uniformly coated on the side close to the inner layer of carbon fibers and the outer reinforced aramid fiber layer.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The outer reinforced aramid fiber layer, the intermediate heat preservation aluminum silicate fiber layer and the inner layer of carbon fibers are combined to provide mechanical protection and reinforcement, the intermediate heat preservation aluminum silicate fiber layer focuses on efficient heat preservation, and the inner layer of carbon fibers enhances the overall strength and cooperates with the outer reinforced aramid fiber layer to prevent the aluminum silicate fibers from escaping into the air, thereby enhancing the heat preservation performance.

[0016] 2. The protective layer provides additional protection for the outer reinforced aramid fiber layer and the inner layer of carbon fibers, so that both have protection capabilities in more aspects to adapt to different application scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure diagram of the aramid fiber and carbon fiber composite heat preservation material of the utility model.

[0018] Figure 2 It is a connection schematic diagram of the inner layer of carbon fibers and the outer reinforced aramid fiber layer of the utility model.

[0019] Figure 3 It is an exploded schematic diagram of the protective layer of the utility model.

[0020] In the figure, 1, the outer reinforced aramid fiber layer; 2, the intermediate heat preservation aluminum silicate fiber layer; 3, the inner layer cooperates with the carbon fiber layer; 4, the protective layer; 41, the moisture resistant coating; 42, the weather resistant coating; 5, the anti-leakage coating. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figures 1-3 The utility model provides technical schemes:

[0023] A kind of aramid fiber, carbon fiber composite heat preservation material, including outer reinforced aramid fiber layer 1, the bottom of outer reinforced aramid fiber layer 1 is provided with intermediate heat preservation aluminum silicate fiber layer 2, and the bottom of intermediate heat preservation aluminum silicate fiber layer 2 is provided with inner layer cooperates with carbon fiber layer 3, and inner layer cooperates with carbon fiber layer 3 and outer reinforced aramid fiber layer 1 side away from intermediate heat preservation aluminum silicate fiber layer 2 are all provided with protective layer 4;

[0024] Protective layer 4 includes moisture resistant coating 41, and moisture resistant coating 41 is respectively arranged in the side close to outer reinforced aramid fiber layer 1 and inner layer cooperates with carbon fiber layer 3, and the other side of moisture resistant coating 41 is provided with weather resistant coating 42.

[0025] In the embodiment: by the composite setting of outer reinforced aramid fiber layer 1, intermediate heat preservation aluminum silicate fiber layer 2 and inner layer cooperates with carbon fiber layer 3, outer layer aramid fiber layer provides mechanical protection and reinforcing effect, while intermediate heat preservation aluminum silicate fiber layer 2 focuses on high-efficiency heat preservation, and inner layer cooperates with carbon fiber layer 3 can enhance the overall strength while cooperating with outer reinforced aramid fiber layer 1, prevent the effect that aluminum silicate fiber disperses into air, to enhance the heat preservation performance, and by the setting of moisture resistant coating 41, effectively prevent external humidity from entering the inside of composite heat preservation material, protect the heat preservation performance and other physical properties of heat preservation material are not influenced by humidity, and under the action of weather resistant coating 42, it can resist the erosion of composite heat preservation material by adverse weather conditions such as ultraviolet rays, acid rain, wind sand, maintain the long-term stability of the appearance and performance of composite heat preservation material, prolong its service life.

[0026] Specifically, as Figure 1 Indicated, the aramid fiber of outer reinforced aramid fiber layer 1 adopts Nomex aramid fiber and is constituted, and weaving technology is three-dimensional weaving technology.

[0027] Specifically, asFigure 1 As shown in the figure, the intermediate heat preservation aluminum silicate fiber layer 2 adopts aluminum silicate fibers with a diameter of 5-10 microns, which are uniformly dispersed between the outer reinforced aramid fiber layer 1 and the inner layer of carbon fiber layer 3.

[0028] Specifically, as shown in the figure, Figure 1 The inner layer of carbon fiber layer 3 is composed of T300 carbon fibers, and the weaving process is three-dimensional weaving process.

[0029] In this embodiment: by setting the outer reinforced aramid fiber layer 1 composed of Nomex aramid fiber, it can play a mechanical protection and enhance the overall strength, by setting the intermediate heat preservation aluminum silicate fiber layer 2 composed of aluminum silicate fibers with a diameter of 5-10 microns, it can realize the heat preservation function by its extremely low thermal conductivity, and by setting the inner layer of carbon fiber layer 3 composed of carbon fibers of T300 carbon fibers, the composite thermal insulation material has appropriate thickness and strength, and can also optimize the heat preservation effect with the outer reinforced aramid fiber layer 1.

[0030] Specifically, as shown in the figure, Figure 3 The anti-moisture coating 41 is composed of silicone resin coating, and is uniformly coated on one side close to the inner layer of carbon fiber layer 3 and the outer reinforced aramid fiber layer 1.

[0031] Specifically, as shown in the figure, Figure 3 The weather-resistant coating 42 is composed of weather-resistant acrylate material, and is uniformly coated on one side close to the anti-moisture coating 41.

[0032] In this embodiment: by setting the anti-moisture coating 41 composed of silicone resin coating, a continuous and dense moisture-proof film can be formed on the surface of the outer reinforced aramid fiber layer 1 and the inner layer of carbon fiber layer 3, effectively preventing external moisture from entering the inside of the composite thermal insulation material, and by setting the weather-resistant coating 42 composed of weather-resistant acrylate material, the long-term stability of the appearance and performance of the composite thermal insulation material can be maintained, and its service life can be prolonged.

[0033] Specifically, as shown in the figure, Figure 2 The inner layer of carbon fiber layer 3 and the outer reinforced aramid fiber layer 1 close to the intermediate heat preservation aluminum silicate fiber layer 2 are provided with an anti-dispersion coating 5, which is composed of polyurethane coating, and is uniformly coated on one side close to the inner layer of carbon fiber layer 3 and the outer reinforced aramid fiber layer 1.

[0034] In this embodiment: by setting the anti-dispersion coating 5 composed of polyurethane coating, a sealing barrier is formed to effectively prevent the aluminum silicate fibers from escaping from the composite thermal insulation material.

[0035] Working principle: when the composite thermal insulation material is used, the outer aramid fiber layer provides mechanical protection and reinforcement, the middle thermal insulation aluminum silicate fiber layer 2 focuses on high-efficiency thermal insulation, and the inner layer cooperates with the carbon fiber layer 3 to enhance the overall strength and cooperate with the outer reinforced aramid fiber layer 1 to prevent the aluminum silicate fiber from escaping into the air, and under the setting of the anti-escape coating 5, the escape of the aluminum silicate fiber is further hindered, thereby enhancing the thermal insulation performance, and through the setting of the moisture-resistant coating 41, the external moisture is effectively prevented from entering the inside of the composite thermal insulation material, the thermal insulation performance and other physical properties of the thermal insulation material are protected from the influence of moisture, and under the action of the weather-resistant coating 42, the composite thermal insulation material can resist the erosion of ultraviolet rays, acid rain, wind and sand and other harsh weather conditions, maintain the long-term stability of the appearance and performance of the composite thermal insulation material, and prolong the service life of the composite thermal insulation material.

[0036] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An aramid fiber and carbon fiber composite thermal insulation material, comprising an external reinforcing aramid fiber layer (1), characterized in that: The bottom of the external reinforcing aramid fiber layer (1) is provided with an intermediate heat-insulating aluminum silicate fiber layer (2), and the bottom of the intermediate heat-insulating aluminum silicate fiber layer (2) is provided with an inner layer synergistic carbon fiber layer (3). The inner layer synergistic carbon fiber layer (3) and the external reinforcing aramid fiber layer (1) are both provided with a protective layer (4) on the side away from the intermediate heat-insulating aluminum silicate fiber layer (2). The protective layer (4) includes a moisture-resistant coating (41), and the moisture-resistant coating (41) is respectively disposed on one side near the outer reinforcing aramid fiber layer (1) and the inner cooperating carbon fiber layer (3), and a weather-resistant coating (42) is disposed on the other side of the moisture-resistant coating (41).

2. The aramid fiber and carbon fiber composite thermal insulation material according to claim 1, characterized in that: The external reinforcing aramid fiber layer (1) is made of Nomex aramid fiber and the weaving process is a three-dimensional weaving process.

3. The aramid fiber and carbon fiber composite thermal insulation material according to claim 1, characterized in that: The intermediate thermal insulation aluminum silicate fiber layer (2) uses aluminum silicate fibers with a diameter of 5-10 micrometers, which are uniformly dispersed between the outer reinforcing aramid fiber layer (1) and the inner synergistic carbon fiber layer (3).

4. The aramid fiber and carbon fiber composite thermal insulation material according to claim 1, characterized in that: The inner co-fiber carbon fiber layer (3) is made of T300 carbon fiber and the weaving process is a three-dimensional weaving process.

5. The aramid fiber and carbon fiber composite thermal insulation material according to claim 1, characterized in that: The moisture-resistant coating (41) is composed of an organosilicon resin coating and is uniformly coated on the side close to the inner synergistic carbon fiber layer (3) and the outer reinforcing aramid fiber layer (1).

6. The aramid fiber and carbon fiber composite thermal insulation material according to claim 1, characterized in that: The weather-resistant coating (42) is made of weather-resistant acrylic material and is uniformly coated on the side close to the moisture-resistant coating (41).

7. The aramid fiber and carbon fiber composite thermal insulation material according to claim 1, characterized in that: The inner synergistic carbon fiber layer (3) and the outer reinforcing aramid fiber layer (1) are both provided with an anti-escape coating (5) on the side near the middle thermal insulation aluminum silicate fiber layer (2). The anti-escape coating (5) is composed of a polyurethane coating and is uniformly coated on the side near the inner synergistic carbon fiber layer (3) and the outer reinforcing aramid fiber layer (1).

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