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CN-122008654-A - Fireproof, heat-insulating and explosion-proof composite fabric, preparation method and protective bag

CN122008654ACN 122008654 ACN122008654 ACN 122008654ACN-122008654-A

Abstract

The invention discloses a fireproof, heat-insulating and explosion-proof composite fabric, a preparation method and a protective bag, and relates to the technical field of protective materials. The fireproof layer is formed by compounding pre-oxidized fibers and aramid 1414, the heat insulation layer is formed by compounding pre-oxidized fibers and basalt fibers, and the explosion-proof layer is high-strength flame-retardant nylon oxford. The modified phenolic resin is prepared by introducing heat-resistant groups such as benzoxazine, phosphate and the like and adding nano silicon dioxide, and has excellent cohesiveness, flame retardance and heat insulation. The invention forms a fire-extinguishing-flame-retardant-heat-insulating-explosion-proof collaborative protection system by the design of the multi-layer functional gradient structure, has the characteristics of high oxygen index, low heat conductivity, large breaking strength, light weight and good flexibility, and can be widely applied to the fields of fire protection, aviation, lithium battery protection and the like.

Inventors

  • TANG YUFENG
  • Zhan Peiqin
  • LAN QIYONG
  • ZHANG YI

Assignees

  • 安欣宝智防科技(成都)有限公司

Dates

Publication Date
20260512
Application Date
20260331

Claims (9)

  1. 1. A fireproof heat-insulating explosion-proof composite fabric, It is characterized in that the method comprises the steps of, Comprising the following steps: the fire-proof layer (3), the heat-insulating layer (2) and the explosion-proof layer (1) are sequentially arranged from inside to outside; the inner side surface of the fireproof layer (3) is coated with a perfluorinated hexanone fire extinguishing coating; An adhesive layer (4) is arranged between the fireproof layer (3) and the heat insulation layer (2) and between the heat insulation layer (2) and the explosion-proof layer (1); the fireproof layer (3) is prepared from the following raw materials, by weight, 85-95 parts of pre-oxidized fibers and 1414-15 parts of aramid fibers; The heat insulation layer (2) is prepared from the following raw materials, by weight, 80-90 parts of pre-oxidized fiber and 10-20 parts of basalt fiber; The explosion-proof layer (1) is high-strength flame-retardant nylon oxford; The adhesive layer (4) is a modified phenolic resin adhesive.
  2. 2. The fireproof heat-insulating explosion-proof composite fabric according to claim 1, It is characterized in that the method comprises the steps of, The surface density of the fireproof layer (3) is 260-280g/m < 2 >, the thickness is 1.5-2.0mm, the coating amount of the perfluorinated hexanone fire extinguishing coating is 50-80g/m < 2 >, and the dry film thickness is 0.05-0.1mm; the surface density of the heat insulation layer (2) is 170-220g/m < 2 >, and the thickness is 0.8-1.2mm; The surface density of the explosion-proof layer (1) is 200-220g/m < 2 >, the thickness is 0.4-0.6mm, and the strength is more than or equal to 2000N; the thickness of the adhesive layer (4) is 0.1-0.3mm.
  3. 3. The fireproof heat-insulating explosion-proof composite fabric according to claim 1, It is characterized in that the method comprises the steps of, The modified phenolic resin is prepared by the following method: Step 1, reacting 2H-1, 4-benzoxazine-3 (4H) -ketone with 6-hydroxy-8-chlorooctanoic acid in the presence of a catalyst to prepare an intermediate 1; Step 2, reacting the intermediate 1 with 2-hydroxyphenyl glycidyl ether in the presence of a catalyst to prepare an intermediate 2; step 3, reacting the intermediate 2 with phosphoric acid to prepare modified phenol; step 4, reacting the modified phenol, phenol and formaldehyde under alkaline conditions to prepare a phenolic prepolymer; and 5, carrying out hydrolysis condensation reaction on the phenolic prepolymer, gamma-aminopropyl triethoxysilane and fumed silica to obtain the modified phenolic resin.
  4. 4. The fireproof heat-insulating explosion-proof composite fabric according to claim 3, It is characterized in that the method comprises the steps of, In the step 1, the molar ratio of the 2H-1, 4-benzoxazine-3 (4H) -ketone, the benzyl triethyl ammonium chloride, the potassium hydroxide and the 6-hydroxy-8-chlorooctanoic acid is 1.2:0.05:0.9:1.0, the reaction temperature is 60-80 ℃, and the reaction time is 4-7 hours; In the step 2, the molar ratio of the intermediate 1 to the chromium acetate to the 2-hydroxyphenyl glycidyl ether is 1:0.02:1.2, the reaction temperature is 80-100 ℃ and the reaction time is 7-10h; in the step 3, the molar ratio of the intermediate 2 to the phosphoric acid is 1:2.0, the reaction temperature is 65-85 ℃ and the time is 6-10h; In the step 4, the mole ratio of the modified phenol to the formaldehyde is 0.08:1.0:1.2, the reaction pH is 7.5-8.5, the temperature is 65-100 ℃, and the time is 1-3 hours; in the step 5, the addition amount of the gamma-aminopropyl triethoxysilane is 0.1 based on phenol, the addition amount of the fumed silica is 2-5% of the total mass of the system, the reaction pH is 7.5-8.5, the temperature is 65-100 ℃, and the time is 0.5-1.5h.
  5. 5. The fireproof heat-insulating explosion-proof composite fabric according to claim 3, It is characterized in that the method comprises the steps of, The perfluorinated hexanone fire extinguishing coating is a composite coating of perfluorinated hexanone and fluorocarbon resin film forming agent, the addition amount of the fluorocarbon resin film forming agent is 10-15% of the mass of perfluorinated hexanone, and the coating can rapidly release the perfluorinated hexanone fire extinguishing agent to realize automatic fire extinguishing when the temperature is more than or equal to 180 ℃.
  6. 6. A preparation method of fireproof heat-insulating explosion-proof composite fabric, A fireproof heat-insulating explosion-proof composite fabric as claimed in any one of claims 1 to 5, It is characterized in that the method comprises the steps of, The method comprises the following steps: Step 1, preparing a perfluorinated hexanone fire-extinguishing coating, coating the perfluorinated hexanone fire-extinguishing coating on the inner side of a fire-retardant layer (3), mixing and stirring the perfluorinated hexanone and a fluorocarbon resin film-forming agent uniformly, coating the mixture on the inner side surface of the fire-retardant layer (3) in a roller coating mode, and drying the mixture at 80-100 ℃ for 10-15min to prepare the fire-retardant layer (3) coated with the fire-extinguishing coating; Step 2, uniformly mixing and dispersing the modified phenolic resin binder, the nano aerogel and the polysiloxane dispersing agent, coating the modified phenolic resin binder on the outer side of the fireproof layer (3), the upper and lower surfaces of the heat insulation layer (2) and the inner side of the explosion-proof layer (1) coated with the fire extinguishing coating in a blade coating mode, and adjusting the distance between the blades and the coating speed to control the thickness of the dry film to be 0.1-0.3mm; And 3, laminating the layers according to the sequence of the fireproof layer (3), the heat insulation layer (2) and the explosion-proof layer (1), compounding by a lamination process, wherein the lamination temperature is 155 ℃, the pressure is 0.8-1.2 megapascals, the dwell time is 15s, and curing at room temperature for 24 hours to obtain the composite fabric.
  7. 7. Use of a fire-resistant, heat-insulating, explosion-proof composite fabric according to any one of claims 1 to 5 for the production of fire-fighting, aviation or lithium battery protective equipment.
  8. 8. A fireproof heat-insulating explosion-proof protection bag, It is characterized in that the method comprises the steps of, Is made of the fireproof, heat-insulating and explosion-proof composite fabric as claimed in any one of claims 1 to 5, wherein the perfluorinated hexanone fire-extinguishing coating of the fabric faces the inner side of the protective bag.
  9. 9. The fire-proof, heat-insulating and explosion-proof protection bag according to claim 8, It is characterized in that the method comprises the steps of, The bag mouth and the cover body of the protection bag are provided with high temperature resistant magnetic sealing structures for realizing self-enhanced sealing when internal pressure rises, the side face of the bag body is provided with a flame-retardant magic tape, and the outer side of the cover body is provided with an emergency pull ring.

Description

Fireproof, heat-insulating and explosion-proof composite fabric, preparation method and protective bag Technical Field The invention relates to the technical field of protective materials, in particular to a fireproof, heat-insulating and explosion-proof composite fabric, a preparation method and a protective bag, which are used for fireproof, heat-insulating and explosion-proof equipment for inflammable and explosive articles and can realize multiple protection of high-temperature automatic fire extinguishment, flame retardance, heat insulation and explosion prevention. Background With the rapid development of the fields of fire emergency rescue, aerospace, new energy battery protection and the like, the demand for high-performance fireproof heat insulation materials is increasingly urgent. Particularly, under extreme scenes such as thermal runaway of lithium batteries and aviation fires, the protective material needs to have the characteristics of excellent flame retardant property, high-efficiency heat insulation capability, enough mechanical strength, light weight, flexibility and the like so as to ensure personnel safety and equipment stability. The fireproof fabric sold in the market at present mainly comprises glass fiber composite fabric, aramid fabric, pure pre-oxidized fiber needled felt and the like. The glass fiber composite fabric has certain high temperature resistance, but has the problems of rough and stiff hand feeling, poor flexibility, easiness in crease retention after folding and the like, glass fibers are easy to fall off, itching and stinging can be caused by contact with skin, and the glass fiber composite fabric can also stimulate the respiratory tract after long-term use, is poor in tearing resistance and wear resistance, is easy to break under the collision or frequent friction of sharp objects, and is difficult to meet the high-strength protection requirement. Although the aramid fabric has excellent flame retardant property, the cost is high, and the heat insulation effect is limited when the aramid fabric is used alone. Although the pure pre-oxidized fiber needled felt has high oxygen index and good flame retardance, the pure pre-oxidized fiber needled felt has the defects of insufficient mechanical strength, poor dimensional stability, easy deformation and breakage, and lack of an explosion-proof layer design, so that the explosion impact cannot be effectively resisted. In addition, the existing composite fabric mostly adopts a simple laminated structure, each layer is single in function and lacks a cooperative protection mechanism, and the adhesive layer generally only plays a role in connection and does not have a flame-retardant heat-insulating function, so that the overall protection performance is difficult to further improve. Meanwhile, the traditional adhesive has poor heat resistance, is easy to lose efficacy at high temperature, and affects the service life and reliability of the fabric. Therefore, developing a multifunctional composite fabric with high flame retardance, high efficiency, heat insulation, high strength, light weight and good flexibility, and realizing interlayer cooperative protection has become a technical problem to be solved in the field. Disclosure of Invention The invention aims to provide a fireproof, heat-insulating and explosion-proof composite fabric, a preparation method and a protective bag, and aims to solve the problems that the existing fireproof fabric is difficult to consider the flame-retardant, heat-insulating and mechanical properties and has single interlayer function and no cooperative protection. In order to solve the above problems, according to one aspect of the present application, an embodiment of the present application provides a fireproof, heat-insulating and explosion-proof composite fabric, a preparation method, and a protective bag, including: The fireproof layer, the heat insulation layer and the explosion-proof layer are sequentially arranged from inside to outside; the inner side surface of the fireproof layer is coated with a perfluorinated hexanone fire extinguishing coating; Adhesive layers are arranged between the fireproof layer and the heat insulation layer and between the heat insulation layer and the explosion-proof layer; The fireproof layer is prepared from the following raw materials, by weight, 85-95 parts of pre-oxidized fibers and 1414-15 parts of aramid fibers; the heat insulation layer is prepared from the following raw materials, by weight, 80-90 parts of pre-oxidized fiber and 10-20 parts of basalt fiber; the explosion-proof layer is high-strength flame-retardant nylon oxford; the adhesive layer is a modified phenolic resin adhesive. Further, it is a matter of course that, The surface density of the fireproof layer is 260-280g/m 2, the thickness is 1.5-2.0mm, the coating amount of the perfluorinated hexanone fire extinguishing coating is 50-80g/m 2, and the dry film thickness is 0.05-0.1mm; The surfa