Life jacket with fireproof and heat insulation functions

Abstract

The life jacket with the fireproof and heat insulation functions comprises an air bag vest and a fireproof blanket assembly sewn on the front side of the air bag vest, the fireproof blanket assembly comprises a fireproof blanket, the fireproof blanket is folded into a square shape, and a plurality of binding strips are arranged on the two sides of the fireproof blanket; two binding strips at the same height form a group, magic tapes are sewn on the two binding strips in the same group, each magic tape comprises a magic tape hook surface and a magic tape loop surface, the surface of the air bag vest is formed by sewing fireproof fiber cloth, and the inner side of the air bag vest is filled with inert gas. The life jacket effectively insulates heat, the fireproof blanket in front of the chest can better protect a user, the user can quickly pass through a fire scene, the protection effect is better, and the fireproof blanket can not be unfolded in a fire controllable area, so that the action of the user is not affected.

Description

Technical Field

[0001] This invention relates to the field of fire protection equipment technology, and in particular to a life jacket with fireproof and heat insulation functions. Background Technology

[0002] Fireproof life jackets, also known as fire-extinguishing and heat-insulating escape jackets or fireproof cloaks, are an important piece of emergency rescue equipment with excellent fireproof and heat-insulating properties. Most existing fireproof life jackets are one-piece, which can easily lead to inconvenience in movement. When a building catches fire, time is crucial for evacuation. Timely evacuation is directly related to the safety of the user. As long as protection is taken when passing through the fire area, there is a chance to evacuate safely. Therefore, a life jacket with fireproof and heat-insulating functions is proposed. Summary of the Invention

[0003] Based on the technical problems existing in the background art, the present invention proposes a life jacket with fireproof and heat insulation functions.

[0004] This invention proposes a life jacket with fireproof and heat-insulating functions, comprising an airbag vest and a fire blanket assembly sewn onto the front of the airbag vest. The fire blanket assembly includes a fire blanket folded into a square shape, with multiple binding strips on both sides. Two binding strips at the same height form a group, and both binding strips in the same group are sewn with Velcro. The Velcro includes a hook side and a loop side. The surface of the airbag vest is made of fireproof fiber cloth, and the inside of the airbag vest is filled with inert gas.

[0005] As a further optimization of this technical solution, the present invention provides a life jacket with fireproof and heat-insulating functions, wherein the fireproof blanket is composed of the following components by weight percentage: High-silica glass fiber cloth 85-92% Ceramic fiber reinforcement layer 5-10% Flame retardant adhesive 2-4% Surface treatment agent 0.5-1.5% Reflective marking material: 0.2-0.8%.

[0006] As a further optimization of this technical solution, the present invention provides a life jacket with fireproof and heat insulation functions, wherein the high silica glass fiber cloth contains 96-98% silica, 1.5-2.5% boron oxide, and the balance is calcium oxide; the cloth surface density is 180-220 g / m², and the thickness is 0.3-0.5 mm.

[0007] As a further optimization of this technical solution, the present invention provides a life jacket with fireproof and heat-insulating functions, comprising 40-50% alumina fiber. 30-40% silica fiber Zirconia fiber 10-15% Bonding fibers 5-10%.

[0008] As a further optimization of this technical solution, the present invention provides a life jacket with fireproof and heat-insulating functions, using 45-55% modified acrylic resin. Ammonium polyphosphate 20-30% Pentaerythritol 10-15% Melamine 5-10% Inorganic fillers: 3-8%.

[0009] The method for preparing a fire blanket includes the following steps: (1) Fiber pretreatment: The high-silica glass fiber yarn is placed in an acid treatment tank and treated with an 8-12% hydrochloric acid solution at 85-95℃ for 2-3 hours. Then it is rinsed with deionized water until neutral and dried at 110-120℃. (2) Weaving process: The pretreated fiber yarns are woven into plain weave fabric using a warp knitting machine, with a warp density of 18-22 threads / cm and a weft density of 16-20 threads / cm. (3) Surface modification treatment: The woven fabric is immersed in a surface treatment solution containing 15-25% silicone resin, 3-8% nano silica, 5-10% flame retardant, 1-3% coupling agent, and the remainder is solvent; after immersion, it is cured at 130-150℃. (4) Preparation of composite reinforcement layer: The ceramic fiber reinforced layer is prepared using a wet molding process. The slurry contains 40-60% ceramic fiber, 5-15% binder, 10-20% flame retardant filler, and 1-3% dispersant. (5) Composite lamination: The surface-modified glass fiber cloth is bonded to the reinforcing layer with a flame-retardant adhesive and then hot-pressed at a temperature of 140-160℃ and a pressure of 0.6-0.8MPa. (6) Post-processing: This includes cutting, hemming, Z-folding, and packaging processes.

[0010] In step (1), ultrasonic cleaning is performed before acid treatment at a frequency of 40kHz for 15-20 minutes; after acid treatment, neutralization is performed with 5% sodium carbonate solution for 10-15 minutes.

[0011] The surface treatment solution in step (3) also contains 0.5-1.5% carbon nanotubes, 2-4% titanium dioxide, and 1-2% antioxidant.

[0012] The wet molding process parameters in step (4) are: slurry concentration 0.8-1.2%, molding mesh number 80-100 mesh, and drying temperature controlled by gradient from 80℃ to 100℃ to 120℃.

[0013] In step (5), the hot pressing process adopts segmented pressure control: the initial stage is 0.3-0.4MPa for 2-3 minutes, the middle stage is 0.6-0.8MPa for 4-5 minutes, and the later stage is 0.4-0.5MPa for 2-3 minutes. In step (6), a special folding equipment is used for Z-shaped folding. The equipment includes an automatic feeding system, multiple sets of folding rollers, a temperature control system of 60-80℃, and a pressure regulation system of 0.1-0.3MPa.

[0014] In summary, the beneficial effects of this invention are as follows: This invention uses an airbag vest for effective heat insulation, and the fire blanket on the chest can better protect the user and help the user quickly cross the fire scene. The protection effect is better. In areas where the fire is under control, the fire blanket does not need to be deployed, so as not to affect the user's movement.

[0015] This invention's fire blanket uses high-silica glass fiber cloth (SiO2 content 96-98%) as the main substrate, which has an extremely high melting point (over 1700℃) and is inherently non-combustible. By incorporating a ceramic fiber reinforcement layer with a specific ratio (containing alumina and zirconium oxide fibers), the material's thermal stability and strength retention at high temperatures are further improved. Tests show that this fire blanket can maintain structural integrity for extended periods in flame environments above 1000℃, with a slow temperature rise on the back side, effectively insulating against high temperatures. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the folded state of a life jacket and fire blanket with fireproof and heat-insulating functions proposed in this invention. Figure 2 This is a schematic diagram of the unfolded state of a life jacket and fire blanket with fireproof and heat-insulating functions proposed in this invention.

[0017] In the picture: 1. Airbag vest; 2. Fire blanket assembly; 201. Binding strip; 2011. Velcro; 3. Fire blanket. Detailed Implementation

[0018] The following will refer to the appendices in the embodiments of the present invention. Figure 1-2 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example 1:

[0019] A life jacket with fireproof and heat-insulating functions includes an airbag vest 1 and a fire blanket assembly 2 sewn to the front of the airbag vest 1. The fire blanket assembly includes a fire blanket 3, which is folded into a square shape and has multiple binding strips 201 on both sides. Two binding strips 201 at the same height form a group, and both binding strips 201 in the same group are sewn with Velcro 2011. The Velcro 2011 includes a hook side and a loop side. The surface of the airbag vest 1 is made of fireproof fiber cloth, and the inside of the airbag vest 1 is filled with inert gas.

[0020] The fire blanket is composed of the following components by weight percentage: 85% high-silica fiberglass cloth, 10% ceramic fiber reinforcement layer, 4% flame-retardant adhesive, 0.7% surface treatment agent, and 0.3% reflective marking material. The high-silica fiberglass cloth contains 96% silica, 2.5% boron oxide, and the balance is calcium oxide; its surface density is 180 g / m², and its thickness is 0.5 mm. The ceramic fiber reinforcement layer comprises: 40% alumina fiber, 40% silica fiber, 10% zirconium oxide fiber, and 10% bonding fiber. The flame-retardant adhesive comprises: 45% modified acrylic resin, 30% ammonium polyphosphate, 15% pentaerythritol, 5% melamine, and 5% inorganic filler. The preparation method includes the following steps: 1. Fiber pretreatment: The high-silica glass fiber yarn is placed in an acid treatment tank and treated with an 8% hydrochloric acid solution at 95°C for 2 hours, then rinsed with deionized water until neutral, and dried at 120°C; 2. Weaving process: The pretreated fiber yarn is woven into a plain weave fabric using a warp knitting machine, with a warp density of 18 threads / cm and a weft density of 20 threads / cm; 3. Surface modification treatment: The woven fabric is immersed in a surface treatment solution containing 15% organosilicon resin and nano-dimethylsiloxane. The composition of the slurry is as follows: 8% silica, 10% flame retardant, 3% coupling agent, with the remainder being solvent; after impregnation, it is cured at 130℃; 4. Preparation of the composite reinforcement layer: The ceramic fiber reinforcement layer is prepared using a wet molding process. The slurry contains 60% ceramic fiber, 5% binder, 20% flame retardant filler, and 3% dispersant; 5. Composite lamination: The surface-modified glass fiber cloth is laminated with the reinforcement layer using a flame retardant adhesive, employing a hot pressing process at 160℃ and 0.6MPa; 6. Finishing: This includes cutting, hemming, Z-folding, and packaging processes. In step 1, ultrasonic cleaning is performed before acid treatment at a frequency of 40kHz for 20 minutes; after acid treatment, neutralization is performed using a 5% sodium carbonate solution for 10 minutes. The surface treatment solution in step 3 also contains 0.5% carbon nanotubes, 4% titanium dioxide, and 1% antioxidant. The wet molding process parameters in step 4 are: slurry concentration 1.2%, molding mesh number 80 mesh, and drying temperature controlled in a gradient from 80℃ to 100℃ to 120℃. In step 5, the hot pressing process employs segmented pressure control: 0.4 MPa for 2 minutes in the initial stage, 0.8 MPa for 4 minutes in the middle stage, and 0.5 MPa for 2 minutes in the later stage. In step 6, a dedicated folding device is used for Z-shaped folding. The device includes an automatic feeding system, multiple sets of folding rollers, a temperature control system of 80℃, and a pressure regulation system of 0.1 MPa. Example 2:

[0021] The fire blanket is composed of the following components by weight percentage: 89% high-silica fiberglass cloth, 7% ceramic fiber reinforcement layer, 3% flame-retardant adhesive, 1.0% surface treatment agent, and 0.5% reflective marking material. The high-silica fiberglass cloth contains 97% silica, 2.0% boron oxide, and the balance is calcium oxide; its surface density is 200 g / m², and its thickness is 0.4 mm. The ceramic fiber reinforcement layer comprises: 45% alumina fiber, 35% silica fiber, 12% zirconium oxide fiber, and 8% bonding fiber. The flame-retardant adhesive comprises: 50% modified acrylic resin, 25% ammonium polyphosphate, 12% pentaerythritol, 8% melamine, and 5% inorganic filler. The preparation method includes the following steps: 1. Fiber pretreatment: High-silica glass fiber yarn is placed in an acid treatment tank and treated with a 10% hydrochloric acid solution at 90°C for 2.5 hours, then rinsed with deionized water until neutral, and dried at 115°C; 2. Weaving process: The pretreated fiber yarn is woven into plain weave fabric using a warp knitting machine, with a warp density of 20 threads / cm and a weft density of 18 threads / cm; 3. Surface modification treatment: The woven fabric is immersed in a surface treatment solution containing 20% ​​organosilicon resin and nano-polymers. The composition is as follows: 5% silica, 8% flame retardant, 2% coupling agent, with the remainder being solvent; after impregnation, it is cured at 140℃; 4. Preparation of composite reinforcement layer: The ceramic fiber reinforcement layer is prepared using a wet molding process. The slurry contains 50% ceramic fiber, 10% binder, 15% flame retardant filler, and 2% dispersant; 5. Composite lamination: The surface-modified glass fiber cloth is laminated with the reinforcement layer using a flame retardant adhesive, employing a hot pressing process at 150℃ and 0.7MPa; 6. Finishing: This includes cutting, hemming, Z-folding, and packaging processes. In step 1, ultrasonic cleaning is performed before acid treatment at a frequency of 40kHz for 18 minutes; after acid treatment, neutralization is performed using a 5% sodium carbonate solution for 12 minutes. In step 3, the surface treatment solution also contains 1.0% carbon nanotubes, 3% titanium dioxide, and 1.5% antioxidant. The wet molding process parameters in step 4 are: slurry concentration 1.0%, molding mesh number 90 mesh, and drying temperature controlled by a gradient of 80℃→100℃→120℃. In step 5, the hot pressing process employs segmented pressure control: an initial stage of 0.35 MPa for 2.5 minutes, a mid-stage of 0.7 MPa for 4.5 minutes, and a final stage of 0.45 MPa for 2.5 minutes. In step 6, a dedicated folding device is used for Z-shaped folding. This device includes an automatic feeding system, multiple sets of folding rollers, a temperature control system at 70°C, and a pressure regulation system at 0.2 MPa. Example 3:

[0022] The fire blanket is composed of the following components by weight percentage: 92% high-silica fiberglass cloth, 5% ceramic fiber reinforcement layer, 2% flame-retardant adhesive, 0.5% surface treatment agent, and 0.5% reflective marking material. The high-silica fiberglass cloth contains 98% silica, 1.5% boron oxide, and the balance is calcium oxide; its surface density is 220 g / m², and its thickness is 0.3 mm. The ceramic fiber reinforcement layer comprises: 50% alumina fiber, 30% silica fiber, 15% zirconium oxide fiber, and 5% bonding fiber. The flame-retardant adhesive comprises: 55% modified acrylic resin, 20% ammonium polyphosphate, 10% pentaerythritol, 10% melamine, and 5% inorganic filler. The preparation method includes the following steps: 1. Fiber pretreatment: High-silica glass fiber yarn is placed in an acid treatment tank and treated with a 12% hydrochloric acid solution at 85°C for 3 hours, then rinsed with deionized water until neutral, and dried at 110°C; 2. Weaving process: The pretreated fiber yarn is woven into plain weave fabric using a warp knitting machine, with a warp density of 22 threads / cm and a weft density of 16 threads / cm; 3. Surface modification treatment: The woven fabric is immersed in a surface treatment solution containing 25% organosilicon resin and nano-dimethylsiloxane. The composition of the slurry is as follows: 3% silica, 5% flame retardant, 1% coupling agent, with the remainder being solvent; after impregnation, it is cured at 150℃; 4. Preparation of the composite reinforcement layer: The ceramic fiber reinforcement layer is prepared using a wet molding process. The slurry contains 40% ceramic fiber, 15% binder, 10% flame retardant filler, and 1% dispersant; 5. Composite lamination: The surface-modified glass fiber cloth is laminated with the reinforcement layer using a flame retardant adhesive, employing a hot pressing process at 140℃ and 0.8MPa; 6. Finishing: This includes cutting, hemming, Z-folding, and packaging processes. In step 1, ultrasonic cleaning is performed before acid treatment at a frequency of 40kHz for 15 minutes; after acid treatment, neutralization is performed using a 5% sodium carbonate solution for 15 minutes. The surface treatment solution in step 3 also contains 1.5% carbon nanotubes, 2% titanium dioxide, and 2% antioxidant. The wet molding process parameters in step 4 are: slurry concentration 0.8%, molding mesh number 100 mesh, and drying temperature controlled in a gradient from 80℃ to 100℃ to 120℃. In step 5, the hot pressing process employs segmented pressure control: 0.3 MPa for 3 minutes in the initial stage, 0.6 MPa for 5 minutes in the middle stage, and 0.4 MPa for 3 minutes in the later stage. In step 6, a dedicated folding device is used for Z-shaped folding. The device includes an automatic feeding system, multiple sets of folding rollers, a temperature control system at 60°C, and a pressure regulation system at 0.3 MPa.

[0023] Examples and Experimental Data To verify the beneficial effects of the present invention, we prepared example samples (prepared according to the method of the present invention) and compared them with the comparative example (commercially available ordinary glass fiber fireproof blanket).

[0024] Sample preparation for the example: Experimental samples were prepared according to the parameters of Example 3.

[0025] Table 1: Fire resistance and heat insulation performance test (based on GB / T 5454-1997 "Test for Burning Performance of Textiles - Oxygen Index Method" and simulated fire test) Conclusion: The data shows that the product of this invention has an extremely high limiting oxygen index and its high temperature insulation effect is far superior to that of ordinary products. Its excellent fire resistance and heat insulation performance is due to the synergistic effect of the high-purity SiO2 skeleton and the composite ceramic reinforcement layer.

[0026] Table 2: Mechanical Properties and Durability Tests Conclusion: Through surface modification and composite processes, the product of this invention maintains high strength while achieving excellent flexibility and resistance to repeated folding, ensuring reliability for long-term storage and use.

[0027] Table 3: Lightweight and Functional Testing Test Project Example Sample Comparative Example Remark areal density 980 g / m² 1200 g / m² Lighter Dimensions after folding 200mm × 150mm × 40mm 250mm × 180mm × 60mm Volume reduced by approximately 55% Reflective sign performance Reflectance coefficient: 420 cd / lx / m² This function is missing or has a low reflectivity. Improve visibility in the dark Still effective after heat treatment at 600°C Liquid repellency (water-based / oil-based) Contact angle >130°, droplet impermeable Contact angle <90°, rapid droplet penetration Thanks to the silicone coating Conclusion: While achieving lightweight design, the product of this invention significantly improves its practicality and safety in complex fire environments through functional design (reflective markings and liquid-repellent coating).

[0028] Table 4: Environmental and Safety Performance Tests (Based on GB 20286-2006 "Requirements and Labelling for Combustion Performance of Flame Retardant Products and Components in Public Places") Conclusion: Test results show that the product of this invention produces extremely low smoke emissions and low toxicity of the smoke during combustion, and there are no molten drips, thus avoiding secondary harm. It fully meets and even exceeds the highest national requirements for flame-retardant products in public places. For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A life jacket with fireproof and heat-insulating functions, characterized in that, The equipment includes an airbag vest (1) and a fire blanket assembly (2) sewn on the front of the airbag vest (1). The fire blanket assembly includes a fire blanket (3), which is folded into a square shape and has multiple binding strips (201) on both sides. Two binding strips (201) at the same height form a group. Both binding strips (201) in the same group are sewn with Velcro (2011). The Velcro (2011) includes a hook side and a loop side. The surface of the airbag vest (1) is made of fireproof fiber cloth and the inside of the airbag vest (1) is filled with inert gas.

2. A life jacket with fireproof and heat-insulating functions according to claim 1, characterized in that, The fire blanket is composed of the following components by weight percentage: High-silica glass fiber cloth 85-92% Ceramic fiber reinforcement layer 5-10% Flame retardant adhesive 2-4% Surface treatment agent 0.5-1.5% Reflective marking material: 0.2-0.8%.

3. The fireproof blanket according to claim 2, characterized in that, The high-silica glass fiber cloth contains 96-98% silica, 1.5-2.5% boron oxide, and the remainder is calcium oxide; the cloth surface density is 180-220 g / m², and the thickness is 0.3-0.5 mm.

4. The fireproof blanket according to claim 2, characterized in that, The ceramic fiber reinforced layer comprises: 40-50% alumina fiber 30-40% silica fiber Zirconia fiber 10-15% Bonding fibers 5-10%.

5. The fireproof blanket according to claim 2, characterized in that, The flame-retardant adhesive comprises: Modified acrylic resin 45-55% Ammonium polyphosphate 20-30% Pentaerythritol 10-15% Melamine 5-10% Inorganic fillers: 3-8%.

6. A method for preparing the fireproof blanket according to any one of claims 2-5, characterized in that, Includes the following steps: (1) Fiber pretreatment: The high-silica glass fiber yarn is placed in an acid treatment tank and treated with an 8-12% hydrochloric acid solution at 85-95℃ for 2-3 hours. Then it is rinsed with deionized water until neutral and dried at 110-120℃. (2) Weaving process: The pretreated fiber yarns are woven into plain weave fabric using a warp knitting machine, with a warp density of 18-22 threads / cm and a weft density of 16-20 threads / cm. (3) Surface modification treatment: The woven fabric is immersed in a surface treatment solution containing 15-25% silicone resin, 3-8% nano silica, 5-10% flame retardant, 1-3% coupling agent, and the remainder is solvent; after immersion, it is cured at 130-150℃. (4) Preparation of composite reinforcement layer: The ceramic fiber reinforced layer is prepared using a wet molding process. The slurry contains 40-60% ceramic fiber, 5-15% binder, 10-20% flame retardant filler, and 1-3% dispersant. (5) Composite lamination: The surface-modified glass fiber cloth is bonded to the reinforcing layer with a flame-retardant adhesive and then hot-pressed at a temperature of 140-160℃ and a pressure of 0.6-0.8MPa. (6) Post-processing: This includes cutting, hemming, Z-folding, and packaging processes.

7. The method according to claim 5, characterized in that, In step (1), ultrasonic cleaning is performed before acid treatment at a frequency of 40kHz for 15-20 minutes; after acid treatment, neutralization is performed with 5% sodium carbonate solution for 10-15 minutes.

8. The method according to claim 5, characterized in that, The surface treatment solution in step (3) also contains 0.5-1.5% carbon nanotubes, 2-4% titanium dioxide, and 1-2% antioxidant.

9. The method according to claim 5, characterized in that, The wet molding process parameters in step (4) are: slurry concentration 0.8-1.2%, molding mesh number 80-100 mesh, and drying temperature controlled by gradient from 80℃ to 100℃ to 120℃.

10. The method according to claim 5, characterized in that, In step (5), the hot pressing process adopts segmented pressure control: the initial stage is 0.3-0.4MPa for 2-3 minutes, the middle stage is 0.6-0.8MPa for 4-5 minutes, and the later stage is 0.4-0.5MPa for 2-3 minutes. In step (6), a special folding equipment is used for Z-shaped folding. The equipment includes an automatic feeding system, multiple sets of folding rollers, a temperature control system of 60-80℃, and a pressure regulation system of 0.1-0.3MPa.

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