Waterproof, heat-insulating and flame-retardant multi-component composite material capable of preventing high-temperature scald

Abstract

The invention discloses a waterproof heat-insulation flame-retardant multi-component composite material capable of preventing high-temperature scald, which comprises a cylindrical heat-insulation protective material capable of surrounding a local trunk or limbs of a human body in an enclosure shape, and the cylindrical heat-insulation protective material sequentially comprises an outer protective layer, a heat-insulation layer, a breathable transition layer, a heat absorption functional layer and a comfortable inner layer from outside to inside; the heat insulation capability is improved; meanwhile, the comfort is considered.

Description

Technical Field

[0001] The invention belongs to the field of protective clothing materials. Background Art

[0002] Flame-retardant heat-insulating protective materials are generally passive heat-insulating and passive flame-retardant, such as aerogel materials. The extremely low thermal conductivity of aerogel makes it an excellent heat-insulating material, which can effectively block the heat exchange between the external cold air and the human body. Nevertheless, in theory, passive insulation cannot achieve complete heat isolation. After working for a long time, the wearer will still feel the overheated environment, resulting in heat stroke and burns. Therefore, it is necessary to design a new type of protective material that can take into account both passive and active heat insulation. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a waterproof, heat-insulating, flame-retardant multi-component composite material that is resistant to high-temperature burns, which improves the thermal insulation capacity while taking into account comfort.

[0004] Technical solution: To achieve the above-mentioned purpose, the present invention provides a waterproof, heat-insulating, flame-retardant multi-component composite material that is resistant to high-temperature burns, characterized in that it includes a tubular heat-insulating protective material that can be enclosed around a part of the human body's trunk or limbs, and the tubular heat-insulating protective material includes, from the outside to the inside, an outer protective layer, a heat-insulating layer, a breathable transition layer, a heat-absorbing functional layer and a comfortable inner layer.

[0005] Furthermore, the outer protective layer is a polyimide fiber fabric; the heat insulation layer is an aerogel layer; the breathable transition layer is an aramid fiber fabric; and the comfortable inner layer is cotton cloth or polyester fiber.

[0006] Furthermore, the heat absorption functional layer includes an elastic expandable spiral air tube, a porous material spiral body and a spiral heat absorption tube from the outside to the inside.

[0007] Furthermore, one end of the elastic expandable spiral air tube is closed, and the other end is used to connect to the air pressure control device. When the pressure in the elastic expandable spiral air tube increases, the elastic expandable spiral air tube expands under the internal air pressure.

[0008] Furthermore, the porous material spiral body is a spiral structure of porous polypropylene material.

[0009] Furthermore, the spiral heat absorption tube is a polypropylene water circulation tube. Driven by an external circulation pump, cold water flowing out of a cold source carried by a user flows continuously through the spiral heat absorption tube.

[0010] Further, any two adjacent spiral circles on the elastic expandable spiral air tube are respectively recorded as the first circle air tube and the second circle air tube 3; when the elastic expandable spiral air tube is at normal pressure, a ventilating gap a extending along the spiral path is formed between the first circle air tube and the second circle air tube;

[0011] The inner circles of the first circle of air pipes 3 and the second circle of air pipes 3 form a breathable gap b extending along a spiral path with the same circle of spiral heat absorbing tubes; and a breathable gap c extending along the spiral path is formed between any two adjacent circles of spiral heat absorbing tubes;

[0012] The porous material spiral body is supported between the elastic expandable spiral air pipe and the spiral heat absorbing pipe; the cross-sectional profile at any position of the porous material spiral body is sandwiched between the first circle of air pipe, the second circle of air pipe and a circle of spiral heat absorbing pipe.

[0013] Furthermore, in the "passive heat-insulating and breathable state", the elastically expandable spiral air tube is at normal pressure.

[0014] Furthermore, in the "active insulation closed state", the air pressure control device increases the pressure in the elastic expandable spiral air tube, and then the elastic expandable spiral air tube undergoes occupier expansion under the internal air pressure, and the wall becomes thinner; at this time, the air permeable gap a and the air permeable gap b are narrowed to closed under the occupier expansion of the elastic expandable spiral air tube; at the same time, driven by the circulating pump, cold water flowing out of the cold source continuously flows through the spiral heat absorption tube.

[0015] Beneficial effect: In the "passive heat-insulating and breathable state", the water vapor generated by human skin can be discharged from the body through the comfortable inner layer, the breathable gap c, the breathable gap b, the breathable gap a, the breathable transition layer, the heat-insulating layer and the outer protective layer in sequence, thereby achieving the effect of sweating and improving the comfort level;

[0016] In the "active insulation closed state", the elastic expandable spiral air tube undergoes space-based expansion under the internal air pressure, and the wall becomes thinner; at this time, the air-permeable gaps and the air-permeable gaps are narrowed to a closed state under the space-based expansion of the elastic expandable spiral air tube, so that the heat absorption functional layer changes from the original air-permeable state to a non-air-permeable state, forcibly blocking the internal and external gas exchange of the material, thereby preventing the external high-temperature gas from invading; the spiral heat absorption tube actively absorbs nearby heat; the outer protective layer is flame retardant, and the aerogel in the heat insulation layer blocks most of the external physical heat conduction. At the same time, the closed heat absorption functional layer prevents the external high-temperature gas from invading, and the small amount of heat that is finally conducted into the heat absorption functional layer is actively absorbed by the cold water flowing through the spiral heat absorption tube, thereby achieving the purpose of avoiding burns to personnel to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A schematic diagram of a cylindrical heat-insulating protective material outside a partial trunk or limbs of a human body;

[0018] Figure 2 It is a schematic diagram of the transverse structure of a cylindrical heat insulation and protection material;

[0019] Figure 3 for Figure 2 The enlarged view of the mark 2 includes two states;

[0020] Figure 4 Schematic diagram of the heat absorption functional layer structure. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] As attached Figures 1 to 4 The waterproof, heat-insulating and flame-retardant multi-component composite material for preventing high-temperature burns shown in the figure comprises a tubular heat-insulating protective material 1 which can be enclosed around a part of the human body or limbs, such as Figure 1 The tubular heat-insulating protective material 1 shown can wrap around key protection parts such as human thighs and arms; the tubular heat-insulating protective material 1 includes an outer protective layer 6, a heat-insulating layer 7, a breathable transition layer 8, a heat-absorbing functional layer 10 and a comfortable inner layer 9 from the outside to the inside.

[0023] The outer protective layer 6 is a polyimide fiber fabric. Polyimide has excellent high temperature resistance, which can reach above 400°C. The long-term use temperature range is -200 to 300°C, and there is no obvious melting point. At the same time, polyimide has high mechanical strength, and the tensile strength of unfilled plastics is above 100 MPa. The thermal insulation layer 7 is an aerogel layer. The extremely low thermal conductivity of aerogel makes it an excellent thermal insulation material, which can effectively block the heat exchange between the external cold air and the human body. The breathable transition layer 8 is an aramid fiber fabric, and its main function is to separate the thermal insulation layer 7 from the heat absorption functional layer 10. The comfortable inner layer 9 is cotton cloth or polyester fiber, which is skin-friendly and comfortable.

[0024] like Figure 3 As shown, the heat absorption functional layer 10 includes an elastic expandable spiral air tube 3, a porous spiral body 4 and a spiral heat absorption tube 5 from the outside to the inside.

[0025] During operation, one end of the elastic expandable spiral air tube 3 is closed, and the other end is used to connect to the air pressure control device. The elastic expandable spiral air tube 3 is made of a spiral elastic rubber tube or latex tube structure. When the pressure inside the elastic expandable spiral air tube 3 increases, the elastic expandable spiral air tube 3 expands under the internal air pressure.

[0026] The porous material spiral body 4 is a spiral structure of porous polypropylene material, so that the porous material spiral body 4 can smoothly pass gas.

[0027] The spiral heat absorption tube 5 is a polypropylene water circulation tube. Driven by an external circulation pump, cold water flowing out of a cold source carried by the user continuously flows through the spiral heat absorption tube 5, so that the spiral heat absorption tube 5 actively absorbs nearby heat.

[0028] Any two adjacent spiral circles on the elastic expandable spiral air tube 3 are respectively recorded as the first circle of air tube 3a and the second circle of air tube 3b; when the elastic expandable spiral air tube 3 is at normal pressure, an air permeable gap a 14 extending along the spiral path is formed between the first circle of air tube 3a and the second circle of air tube 3b; an air permeable gap b 15 extending along the spiral path is formed between the inner circles of the first circle of air tube 3a and the second circle of air tube 3b and the same circle of spiral heat absorbing tube 5; an air permeable gap c 16 extending along the spiral path is formed between any two adjacent circles of spiral heat absorbing tube 5; the porous material spiral body 4 is supported between the elastic expandable spiral air tube 3 and the ... The cross-sectional profile at any position of the material spiral 4 is sandwiched between the first circle of air tubes 3a, the second circle of air tubes 3b and a circle of spiral heat absorption tubes 5; the porous material spiral 4 supports the elastic expandable spiral air tube 3 and the spiral heat absorption tube 5 along the spiral path, preventing the elastic expandable spiral air tube 3 and the spiral heat absorption tube 5 from being locally displaced and deformed, so that the a air permeable gap 14 and the b air permeable gap 15 are evenly distributed along the spiral path without local collapse and deformation. At the same time, the porous material spiral 4 can smoothly pass gas, so that the b air permeable gap 15 and the a air permeable gap 14 can achieve gas exchange through the gaps inside the porous material spiral 4.

[0029] When the user wearing the protective clothing made of the protective material has not yet entered the high-temperature working area or is still at the edge of the high-temperature working area, in order to avoid the excessive consumption of the cold source carried by the user and his own comfort, the user can selectively enter the "passive heat insulation and ventilation state";

[0030] In the "passive heat-insulating and breathable state", the liquid in the spiral heat-absorbing tube 5 does not flow, and the elastically expandable spiral air tube 3 is at normal pressure; at this time, the aerogel in the heat-insulating layer 7 plays a major passive heat-insulating role, and at the same time, the water vapor generated by the human skin can be discharged from the body through the comfortable inner layer 9, c breathable gap 16, b breathable gap 15, a breathable gap 14, breathable transition layer 8, heat-insulating layer 7 and outer protective layer 6 in sequence, thereby playing a role in sweating and achieving the effect of improving comfort.

[0031] When the user wearing the protective clothing of the protective material has entered the high-temperature working area or the fire area, in order to maximize the thermal insulation and active heat absorption performance of the protective material, the user can selectively enter the "active thermal insulation closed state";

[0032] In the "active heat-insulating closed state", the air pressure control device carried by the user, such as an air pump, inputs a predetermined pressure into the elastic expandable spiral air tube 3, so that the pressure in the elastic expandable spiral air tube 3 increases, and then the elastic expandable spiral air tube 3 expands under the internal air pressure, and the wall becomes thinner; at this time, the air permeable gap a 14 and the air permeable gap b 15 are narrowed to be closed under the action of the occupying expansion of the elastic expandable spiral air tube 3, so that the heat absorption functional layer 10 changes from the original air permeable state to a non-air permeable state, forcibly blocking the internal and external gas exchange of the material, thereby preventing the external high-temperature gas from invading ; At the same time, driven by the circulation pump carried by the user, the cold water flowing out of the cold source carried by the user flows continuously through the spiral heat absorption tube 5, so that the spiral heat absorption tube 5 actively absorbs nearby heat; the working principle of flame retardant heat insulation at this time is that the outer protective layer 6 is flame retardant, and the aerogel in the heat insulation layer 7 blocks most of the external physical heat conduction. At the same time, the closed heat absorption functional layer 10 prevents the external high-temperature gas from invading, and the small amount of heat that is finally conducted to the heat absorption functional layer 10 is actively absorbed by the cold water flowing continuously through the spiral heat absorption tube 5, thereby achieving the purpose of avoiding burns to personnel to the greatest extent.

[0033] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A waterproof, heat-insulating and flame-retardant multi-component composite material that prevents high-temperature scalding, characterized in that: The invention comprises a tubular heat-insulating protective material (1) which can be enclosed around a part of a human body's trunk or limbs. The tubular heat-insulating protective material (1) comprises, from the outside to the inside, an outer protective layer (6), a heat-insulating layer (7), a breathable transition layer (8), a heat-absorbing functional layer (10) and a comfortable inner layer (9).

2. The waterproof, heat-insulating, flame-retardant multi-component composite material for preventing high-temperature burns according to claim 1, characterized in that: The outer protective layer (6) is a polyimide fiber fabric; the heat insulating layer (7) is an aerogel layer; the breathable transition layer (8) is an aramid fiber fabric; and the comfortable inner layer (9) is cotton cloth or polyester fiber.

3. The waterproof, heat-insulating and flame-retardant multi-component composite material for preventing high-temperature burns according to claim 1, characterized in that: The heat absorption functional layer (10) comprises, from outside to inside, an elastic expandable spiral air tube (3), a porous material spiral body (4) and a spiral heat absorption tube (5).

4. The waterproof, heat-insulating and flame-retardant multi-component composite material for preventing high-temperature burns according to claim 3, characterized in that: One end of the elastic expandable spiral air tube (3) is closed, and the other end is used to connect to the air pressure control device. When the pressure in the elastic expandable spiral air tube (3) increases, the elastic expandable spiral air tube (3) expands under the internal air pressure.

5. The waterproof, heat-insulating and flame-retardant multi-component composite material for preventing high-temperature burns according to claim 3, characterized in that: The porous material spiral body (4) is a spiral structure made of porous polypropylene material.

6. The waterproof, heat-insulating and flame-retardant multi-component composite material for preventing high-temperature burns according to claim 3, characterized in that: The spiral heat absorption tube (5) is a polypropylene water circulation tube. Driven by an external circulation pump, cold water flowing out of a cold source carried by a user continuously flows through the spiral heat absorption tube (5).

7. The waterproof, heat-insulating and flame-retardant multi-component composite material for preventing high-temperature burns according to claim 6, characterized in that: Any two adjacent spiral circles on the elastic expandable spiral air tube (3) are respectively recorded as a first circle air tube (3a) and a second circle air tube (3b); when the elastic expandable spiral air tube (3) is at normal pressure, a ventilating gap (14) extending along the spiral path is formed between the first circle air tube (3a) and the second circle air tube (3b); The inner circles of the first circle of air pipes (3a) and the second circle of air pipes (3b) form a b air-permeable gap (15) extending along a spiral path with the same circle of spiral heat-absorbing pipes (5); and a c air-permeable gap (16) extending along the spiral path is formed between any two adjacent circles of spiral heat-absorbing pipes (5); The porous material spiral body (4) is supported between the elastically expandable spiral air tube (3) and the spiral heat absorption tube (5); the cross-sectional profile at any position of the porous material spiral body (4) is sandwiched between the first circle of air tubes (3a), the second circle of air tubes (3b) and the first circle of spiral heat absorption tubes (5).

8. The waterproof, heat-insulating and flame-retardant multi-component composite material for preventing high-temperature burns according to claim 7, characterized in that: In the "passive heat-insulating and breathable state", the elastically expandable spiral air tube (3) is at normal pressure.

9. The waterproof, heat-insulating and flame-retardant multi-component composite material for preventing high-temperature burns according to claim 8, characterized in that: In the "active heat-insulating closed state", the air pressure control device increases the pressure in the elastic expandable spiral air tube (3), and then the elastic expandable spiral air tube (3) expands in a occupying manner under the internal air pressure, and the wall becomes thinner; at this time, the air permeable gap a (14) and the air permeable gap b (15) are narrowed to be closed under the occupying expansion effect of the elastic expandable spiral air tube (3); at the same time, driven by the circulation pump, cold water flowing out of the cold source continuously flows through the spiral heat absorption tube (5).

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