Ultra-high-temperature and ultra-low-temperature resistant special garment

Abstract

The invention relates to an ultra-high-temperature and ultra-low-temperature resistant special garment, and relates to the technical field of special garments, the ultra-high-temperature and ultra-low-temperature resistant special garment comprises a composite layer structure, and the composite layer structure comprises a flame-retardant outer layer, a waterproof breathable layer, a high-temperature heat insulation layer, a low-temperature anti-freezing layer and a comfortable layer which are stacked in sequence. The special garment provided by the invention has the characteristic of ultra-high temperature and ultra-low temperature resistance, can meet the use requirements of firefighter suits, heat insulation suits, ultra-low temperature suits, special rescue suits and the like, and has wide application.

Description

Technical Field

[0001] The invention relates to the technical field of special clothing, in particular to a special clothing resistant to ultra-high and ultra-low temperatures. Background Art

[0002] Special clothing refers to clothing with special functions or special purposes, such as acid-proof clothing, fire-proof clothing, oil-proof and water-repellent clothing, anti-static clothing, flame-retardant clothing, welding protective clothing, arc-proof clothing, etc. These clothes are not daily wear, but are designed for specific work occasions or environments. For example, special clothing resistant to ultra-high temperature and ultra-low temperature is a special protective clothing specially designed and manufactured to adapt to extreme temperature environments. This type of clothing usually has a high degree of high temperature resistance or low temperature resistance, as well as other necessary protective characteristics to ensure the safety and comfort of workers under extreme temperature conditions.

[0003] Special clothing resistant to ultra-high and ultra-low temperatures has a wide range of application scenarios and strict requirements for ultra-high and ultra-low temperature resistance. Take fire suits as an example. For safety in high-temperature areas: Although the material design of fire suits has fire resistance, they may still burn under extremely high temperatures and release toxic smoke, threatening the lives of firefighters. In addition, some designs of fire suits, such as helmets and shawls, may be too bulky, affecting the field of vision and flexibility of firefighters, thereby reducing safety and efficiency in emergency situations. In addition, regarding safety in low-temperature areas: Since the actual work of firefighters is not just firefighting, but various forms of rescue work. For example, rescue in extremely cold areas and rescue of low-temperature hazardous chemicals, described from the perspective of temperature, such as LNG hazardous chemical rescue at a temperature of minus 162 degrees Celsius, the test for fire suits is not fire resistance, but antifreeze performance, and the current national standard GA10-2014 does not have requirements for this, and there are no corresponding antifreeze and fireproof products on the market.

[0004] At present, fire suits are generally composed of four layers, which are: 1. The first layer: the flame-retardant outer layer (the outermost layer): This layer is in direct contact with the complex fire environment, so it needs to have flame-retardant properties and certain physical properties. 2. The second layer: the waterproof and breathable layer: This layer is located inside the flame-retardant outer layer, and it mainly plays the role of waterproofing, steam-proofing and preventing the penetration of harmful substances. 3. The third layer: the thermal insulation layer: The main function of this layer is to prevent heat from being transferred to the inside and protect firefighters from high temperature injuries. 4. The fourth layer: the comfort layer: This is a layer close to the skin, the purpose is to make the wearer feel more comfortable. These four layers work together to provide comprehensive protection for firefighters in fires or other dangerous environments. In addition, the structural design of fire suits has also been continuously modified and improved. At present, there are mainly two structures: one is a one-piece type, and the other is a split type. Both have their advantages and disadvantages. The one-piece fire suit has a low manufacturing cost and less heat storage, but poor flexibility; the split type is easy to put on and take off, and can be flexibly moved, but the heat dissipation is poor and the manufacturing cost is high. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a special clothing resistant to ultra-high and ultra-low temperatures.

[0006] The present invention provides a special clothing resistant to ultra-high temperature and ultra-low temperature. The special clothing resistant to ultra-high temperature and ultra-low temperature comprises a composite layer structure, wherein the composite layer structure comprises a flame-retardant outer layer, a waterproof and breathable layer, a high-temperature heat-insulating layer, a low-temperature antifreeze layer and a comfort layer stacked in sequence.

[0007] Furthermore, the flame retardant outer layer is obtained by coating aluminum glue A and aluminum glue B in sequence on the outer surface of the base fabric material;

[0008] In parts by weight, the aluminum glue A comprises the following raw materials: 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 15-20 parts of butanone, and 4-8 parts of aluminum powder;

[0009] In parts by weight, the aluminum glue B comprises the following raw materials: 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 20-30 parts of butanone, and 7-10 parts of aluminum powder.

[0010] Furthermore, the adhesive is phenolic resin, and the base fabric material includes aramid 1313.

[0011] Furthermore, the method for preparing the flame retardant outer layer comprises the following steps:

[0012] Mix 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 15-20 parts of butanone, and 4-8 parts of aluminum powder, and stir evenly to form aluminum glue A;

[0013] Mix 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 20-30 parts of butanone, and 7-10 parts of aluminum powder, stir evenly to form aluminum glue B;

[0014] A layer of aluminum glue A with a thickness of 0.5 to 1.5 mm is evenly coated on the outer surface of the base fabric material. After the aluminum glue A is dried, a layer of aluminum glue B with a thickness of 0.5 to 1.5 mm is evenly coated on the surface, and then dried and cured to obtain the flame retardant outer layer.

[0015] Furthermore, the waterproof and breathable layer is obtained by laminating the base fabric material and the PTFE membrane;

[0016] The base fabric material includes aramid, and the working condition parameters of the lamination process include: a lamination temperature of 140° C., a lamination pressure of 1.4 MPa, and a lamination time of 20 seconds.

[0017] Furthermore, the preparation method of the high temperature thermal insulation layer includes the following steps:

[0018] High temperature resistant fiber materials are used for textile processing to obtain high temperature resistant fabrics;

[0019] The high temperature resistant fiber material includes at least one of aramid fiber and polytetrafluoroethylene fiber.

[0020] Furthermore, the method for preparing the high temperature thermal insulation layer also includes the following process:

[0021] The high temperature resistant fabric and the aerogel insulation material are subjected to a reinforcing composite treatment to obtain the high temperature insulation layer;

[0022] The aerogel thermal insulation material includes silicon dioxide aerogel or carbon-based aerogel;

[0023] The strengthening and composite treatment steps include the following processes: aerogel is mixed into silica sol, uniformly dispersed in the silica sol by ultrasound or stirring, and then the high-temperature cloth is impregnated with silica sol.

[0024] Furthermore, the method for preparing the low-temperature antifreeze layer includes the following steps:

[0025] Using low-temperature resistant materials for textile processing to obtain low-temperature resistant fabrics;

[0026] A low-temperature resistant coating is applied on the surface of the low-temperature resistant fabric to form a coating, and then heat-treated to obtain the low-temperature antifreeze layer;

[0027] Among them, the low-temperature resistant material is a polyimide material, the low-temperature resistant coating is a polyimide coating, the thickness of the coating is 0.5 to 1.5 mm, and the working condition parameters of the heat treatment include: temperature of 150° C. and time of 20 minutes.

[0028] Furthermore, the preparation method of the comfort layer includes the following steps:

[0029] blending the preselected fiber materials to form blended yarn;

[0030] Weaving the blended yarn into a fabric in a warp and weft interlaced manner to obtain the comfort layer;

[0031] When worn, the comfort layer is close to the body.

[0032] Furthermore, the types of the special clothing resistant to ultra-high and ultra-low temperatures include at least one of fire-fighting clothing, heat-insulating clothing, ultra-low temperature clothing and special rescue clothing.

[0033] The above technical solution provided by the embodiment of the present invention has at least the following advantages compared with the prior art:

[0034] The present invention provides a special clothing that is resistant to ultra-high and ultra-low temperatures. The special clothing provided by the present invention has the characteristics of being resistant to ultra-high and ultra-low temperatures, and can meet the use requirements of firefighting clothing, heat insulation clothing, ultra-low temperature clothing, special rescue clothing, etc., and has a wide range of uses. Specifically:

[0035] Compared with traditional fire suits, the present invention uses aerogel materials with enhanced thermal insulation properties as a substitute at the insulation layer level to help rescue workers withstand high temperatures of 1300°C. At the same time, aerogel materials with enhanced antifreeze properties are added to the third and fourth layer brackets, which can provide protection for rescue workers at external temperatures of minus 160 degrees Celsius, meeting higher usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0038] Figure 1 A schematic diagram of the middle composite structure of the ultra-high temperature and ultra-low temperature resistant special clothing provided by an embodiment of the present invention;

[0039] Figure 2 This is a sample diagram of the ultra-high temperature and ultra-low temperature resistant special clothing cut into firefighting clothing in an embodiment of the present invention;

[0040] Figure 1 Middle: 101-flame retardant outer layer, 102-waterproof and breathable layer, 103-high temperature insulation layer, 104-low temperature antifreeze layer, 105-comfort layer. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0043] In the first aspect, the present invention provides a special clothing resistant to ultra-high temperature and ultra-low temperature, such as Figure 1 As shown, the ultra-high temperature and ultra-low temperature resistant special clothing comprises a composite layer structure, and the composite layer structure comprises a flame retardant outer layer, a waterproof and breathable layer, a high temperature heat insulation layer, a low temperature antifreeze layer and a comfort layer stacked in sequence; Figure 1 Middle: 101-flame retardant outer layer, 102-waterproof and breathable layer, 103-high temperature insulation layer, 104-low temperature antifreeze layer, 105-comfort layer.

[0044] The special clothing provided by the present invention has the characteristics of being resistant to ultra-high and ultra-low temperatures, and can meet the use requirements of fire-fighting clothing, heat-insulating clothing, ultra-low temperature clothing, special rescue clothing, etc., and has a wide range of uses. Specifically:

[0045] Compared with traditional fire suits, the present invention uses aerogel materials with enhanced thermal insulation properties as a substitute at the insulation layer level to help rescue workers withstand high temperatures of 1300°C. At the same time, aerogel materials with enhanced antifreeze properties are added to the third and fourth layer brackets, which can provide protection for rescue workers at external temperatures of minus 160 degrees Celsius, meeting higher usage requirements.

[0046] In some specific embodiments, the flame retardant outer layer is obtained by sequentially coating aluminum glue A and aluminum glue B on the outer surface of the base fabric material;

[0047] In parts by weight, the aluminum glue A comprises the following raw materials: 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 15-20 parts of butanone, and 4-8 parts of aluminum powder;

[0048] In parts by weight, the aluminum glue B comprises the following raw materials: 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 20-30 parts of butanone, and 7-10 parts of aluminum powder.

[0049] In some specific embodiments, the oily polyurethane can be directly made of commercial products such as TPU 487 produced by BASF; the adhesive can be directly made of commercial products such as FRJ551 produced by SI Group; and the cyclized phosphate flame retardant can be directly made of commercial products such as Fyrol 38 produced by American Newray Inc.

[0050] In some specific embodiments, the adhesive is phenolic resin, and the base fabric material includes aramid 1313.

[0051] In some specific embodiments, the method for preparing the flame retardant outer layer comprises the following process:

[0052] Mix 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 15-20 parts of butanone, and 4-8 parts of aluminum powder, and stir evenly to form aluminum glue A;

[0053] Mix 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 20-30 parts of butanone, and 7-10 parts of aluminum powder, stir evenly to form aluminum glue B;

[0054] A layer of aluminum glue A with a thickness of 0.5 to 1.5 mm is evenly coated on the outer surface of the base fabric material. After the aluminum glue A is dried, a layer of aluminum glue B with a thickness of 0.5 to 1.5 mm is evenly coated on the surface, and then dried and cured to obtain the flame retardant outer layer.

[0055] In some specific embodiments, the waterproof and breathable layer is obtained by laminating a base fabric material and a PTFE membrane;

[0056] The base fabric material includes aramid, and the working condition parameters of the lamination process include: a lamination temperature of 140° C., a lamination pressure of 1.4 MPa, and a lamination time of 20 seconds.

[0057] In some specific embodiments, the method for preparing the high temperature thermal insulation layer includes the following process:

[0058] High temperature resistant fiber materials are used for textile processing to obtain high temperature resistant fabrics;

[0059] The high temperature resistant fiber material includes at least one of aramid fiber and polytetrafluoroethylene fiber.

[0060] In some specific embodiments, the method for preparing the high temperature thermal insulation layer further includes the following process:

[0061] The high temperature resistant fabric and the aerogel insulation material are subjected to a reinforcing composite treatment to obtain the high temperature insulation layer;

[0062] The aerogel thermal insulation material includes silicon dioxide aerogel or carbon-based aerogel;

[0063] The steps of the strengthening and compounding treatment include the following process: see the previous strengthening and compounding treatment for details).

[0064] In some specific embodiments, the method for preparing the low-temperature antifreeze layer includes the following process:

[0065] Using low-temperature resistant materials for textile processing to obtain low-temperature resistant fabrics;

[0066] A low-temperature resistant coating is applied on the surface of the low-temperature resistant fabric to form a coating, and then heat-treated to obtain the low-temperature antifreeze layer;

[0067] Among them, the low-temperature resistant material is a polyimide material, the low-temperature resistant coating is a polyimide coating, the thickness of the coating is 0.5 to 1.5 mm, and the working condition parameters of the heat treatment include: temperature of 150° C. and time of 20 minutes.

[0068] In some specific embodiments, the method for preparing the comfort layer includes the following process:

[0069] blending the preselected fiber materials to form blended yarn;

[0070] Weaving the blended yarn into a fabric in a warp and weft interlaced manner to obtain the comfort layer;

[0071] When worn, the comfort layer is close to the body.

[0072] In some specific embodiments, the types of the ultra-high temperature and ultra-low temperature resistant special clothing include at least one of firefighting clothing, heat insulation clothing, ultra-low temperature clothing and special rescue clothing. For example, by cutting, sewing and other steps, the ultra-high temperature and ultra-low temperature resistant special clothing is made into the shape of firefighting clothing, such as Figure 2 shown.

[0073] In some specific embodiments, the preparation of the ultra-high temperature and ultra-low temperature resistant special clothing includes the following process:

[0074] Preparation method of flame retardant outer layer:

[0075] The method of sequentially coating aluminum glue A and aluminum glue B on the outer surface of aramid 1313 is adopted. Aluminum glue A includes the following raw materials in mass parts: 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 15-20 parts of butanone, and 4-8 parts of aluminum powder. Aluminum glue B includes the following raw materials in mass parts: 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 20-30 parts of butanone, and 7-10 parts of aluminum powder.

[0076] The specific preparation process may include the following steps:

[0077] 1. Prepare the required raw materials and measure them accurately according to the above mass quantities.

[0078] 2. Mix the oily polyurethane, adhesive, cyclized phosphate flame retardant and butanone, stir evenly to form aluminum glue A.

[0079] 3. Evenly apply a layer of aluminum glue A on the outer surface of aramid 1313, and ensure that the coating is uniform and free of bubbles.

[0080] 4. After aluminum glue A is dry, evenly apply a layer of aluminum glue B on its surface, also ensuring that the coating is uniform and free of bubbles.

[0081] 5. The coated outer layer of the fire-fighting suit is dried and cured to make it have excellent flame retardant properties.

[0082] Waterproof breathable layer method:

[0083] The preparation method of the waterproof and breathable layer of firefighting clothing usually involves special fabric processing technology and material selection. The following is a possible method for preparing the waterproof and breathable layer of firefighting clothing:

[0084] 1. Material selection:

[0085] 1. The waterproof and breathable layer generally uses PTFE (polytetrafluoroethylene) membrane because it has excellent waterproof and breathable properties. The microporous structure of the PTFE membrane allows water vapor molecules to pass through, but prevents liquid water molecules from passing through, thereby achieving a waterproof and breathable effect.

[0086] 2. The base fabric material can be high-performance fiber materials such as aramid to ensure the overall strength and flame retardant properties of the fire suit.

[0087] 2. Preparation process:

[0088] 1. First, prepare the PTFE membrane and base fabric materials.

[0089] 2. The PTFE membrane and base fabric material are then bonded together using a lamination technique. This usually involves laminating the two materials under high temperature and pressure to ensure a strong bond between them.

[0090] 3. During the lamination process, special adhesives or hot melt adhesives may also be needed to strengthen the bond between the two materials.

[0091] 4. After lamination is completed, the waterproof and breathable layer is subjected to quality inspection, including waterproof performance test, breathability test and strength test, to ensure that it meets relevant standards and requirements.

[0092] 3. Subsequent processing:

[0093] 1. In order to further improve the performance of the waterproof and breathable layer, other treatments may be required, such as antibacterial treatment, antistatic treatment, etc.

[0094] 2. During the processing, various process parameters need to be strictly controlled to ensure that the performance of the waterproof and breathable layer is stable and reliable.

[0095] High temperature insulation layer:

[0096] Material selection:

[0097] 1. Choose fiber materials with good high temperature resistance, such as modified polyamide fiber, aramid, etc. These fiber materials not only have excellent high temperature resistance, but also have good mechanical properties, flame retardant properties and dyeing properties.

[0098] 2. Fiber pretreatment:

[0099] 1. Pre-treatment of selected fibers, such as cleaning, drying and finishing, to remove impurities and improve fiber purity and quality.

[0100] 3. Spinning and weaving:

[0101] 1. Spin the pretreated fibers to form yarn. The yarn can be processed with different textile techniques as needed, such as plain, twill, satin, etc., to obtain different properties and appearances.

[0102] 2. Weave the spun yarn to form the fabric required for firefighting uniforms. During the weaving process, different weave structures can be designed as needed, such as plain weave, twill weave, interweaving, etc., to improve the strength and stability of the fabric.

[0103] 4. Post-processing:

[0104] 1. Post-process the woven fabric, such as heat treatment, shaping treatment, etc., to improve the dimensional stability and shape of the fabric.

[0105] 2. Coating the surface of the fabric to improve its high temperature resistance, corrosion resistance, etc. The coating material can be a high temperature resistant fire retardant, reinforcing material or other special coating.

[0106] 5. Composite treatment:

[0107] 1. If the performance of firefighting clothing fabrics needs to be further improved, composite processing technology can be used. For example, high-temperature resistant fabrics can be composited with thermal insulation materials such as aerogel to improve their thermal insulation performance.

[0108] 6.Quality inspection:

[0109] 1. Carry out quality inspection on the prepared high temperature resistant fabrics of fire fighting suits, including high temperature resistance test, flame retardant performance test, mechanical property test, etc., to ensure that they meet the relevant standards and requirements.

[0110] Preparation method of low temperature antifreeze layer:

[0111] 1. Material selection:

[0112] 1. Choose fiber materials with excellent low-temperature resistance, such as polyester, nylon, polyurethane, etc. These materials can still maintain good elasticity and strength in low-temperature environments.

[0113] 2. You can also consider using rubber materials, such as styrene-butadiene rubber, by adding specific additives (such as tert-butyl vinyl carbonate) to enhance its UV resistance and anti-aging properties.

[0114] 2. Fiber processing:

[0115] 1. Carry out necessary treatments on the selected fibers, such as cleaning, drying and finishing, to remove impurities and improve the purity and quality of the fibers.

[0116] 3. Spinning and weaving:

[0117] 1. Spin the treated fibers to form yarn. The yarn can be processed by different textile processes as needed, such as plain weave, twill, satin, etc., to obtain the desired fabric structure and performance.

[0118] 2. Use textile machinery to weave the yarn into the required fabric. The density and interweaving method of the yarn can be adjusted during the weaving process to obtain fabric with better low temperature resistance.

[0119] 4. Coating treatment:

[0120] 1. In order to further improve the low temperature resistance of the fabric, one or more layers of coating materials with low temperature resistance can be coated on its surface. The coating material can be rubber, resin or other special materials, which are evenly coated on the surface of the fabric through a coating process.

[0121] 2. The coating treatment can be carried out by dipping, spraying, rolling, etc. to ensure that the coating is uniform, free of bubbles, cracks and other defects.

[0122] 5. Heat treatment and curing:

[0123] 1. Heat treat the coated fabric to solidify the coating material and improve its bonding with the fabric substrate. The heat treatment temperature and time should be adjusted according to the requirements of the selected coating material.

[0124] 6.Quality inspection:

[0125] 1. Carry out quality inspection on the prepared low-temperature resistant fabrics, including low-temperature resistance test, tensile strength test, abrasion resistance test, etc., to ensure that they meet the relevant standards and requirements.

[0126] Preparation method of fire-fighting clothing comfort layer:

[0127] 1. Material selection:

[0128] 1. Choose fiber materials with good flame retardant properties, thermal stability, moisture permeability and comfort properties, such as aramid fiber, flame retardant regenerated cellulose fiber, etc. These materials can ensure that the fire suits provide adequate protection for firefighters in the fire environment while maintaining comfort.

[0129] 2. Preparation of blended yarn:

[0130] 1. The selected fiber materials are blended in a certain proportion to form a blended yarn. The proportion of the blended yarn can be adjusted according to specific needs to optimize the performance of the comfort layer.

[0131] 3. Fabric weaving:

[0132] 1. Use a loom to weave the blended yarn into a fabric in a specific warp and weft interlacing method. The fabric structure can be designed with a honeycomb pattern to increase the thickness of the air layer, thereby improving the thermal protection performance to a certain extent.

[0133] 4. Post-processing:

[0134] 1. Carry out necessary post-treatment on the woven fabric, such as softening treatment, antistatic treatment, etc., to improve its comfort and durability.

[0135] 5.Quality inspection:

[0136] The quality of the prepared fire suit comfort layer is tested, including flame retardant performance test, thermal stability performance test, moisture permeability test and comfort performance test, etc. It ensures that the comfort layer meets the relevant standards and requirements and can provide adequate protection and comfort for firefighters.

[0137] The present invention will be further described below in conjunction with specific examples. It should be understood that these examples are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The experimental methods in the following examples that do not specify specific conditions are usually measured according to national standards. If there is no corresponding national standard, then the conditions recommended by the manufacturer are followed.

[0138] The main raw material product information involved in the following examples and comparative examples is as follows:

[0139] Oily polyurethane: produced by BASF, product model TPU 487.

[0140] Adhesive: specifically phenolic resin, produced by SI Group, product model FRJ551.

[0141] Cyclic phosphate flame retardant: It is a specific material, produced by American Xuruida Co., Ltd., and the product model is Fyrol 38.

[0142] Aerogel insulation material: specifically carbon aerogel, from Cabot Corporation of the United States, with a purity of 99.9%.

[0143] Low temperature resistant material: specifically polyimide material, adopted from DuPont Company, product model is Upilex R.

[0144] High temperature resistant fabric: specifically aramid, from DuPont, product model is aramid 1414.

[0145] Low temperature resistant coating: specifically polyimide powder coating, which is produced by American Hanson Specialty Chemicals Company, and the product model is PCL 6500.

[0146] Pre-selected fiber materials for the comfort layer: specifically cotton or blended fabrics, produced by Shandong Jusian Fire Fighting Equipment Co., Ltd., product model ZFZH-JSA.

[0147] Example 1

[0148] This example provides a special clothing resistant to ultra-high temperature and ultra-low temperature, which includes a composite layer structure, which includes a flame retardant outer layer, a waterproof breathable layer, a high temperature insulation layer, a low temperature antifreeze layer and a comfort layer stacked in sequence. When worn, the comfort layer is close to the body. The preparation method of the special clothing resistant to ultra-high temperature and ultra-low temperature includes the following steps:

[0149] Step (1) Preparation of flame retardant outer layer:

[0150] The flame retardant outer layer is obtained by coating aluminum glue A and aluminum glue B in sequence on the outer surface of the base fabric material (specifically aramid 1313);

[0151] In parts by weight, the aluminum glue A comprises the following raw materials: 100 parts of oily polyurethane, 8 parts of adhesive, 25 parts of cyclized phosphate flame retardant, 18 parts of butanone, and 6 parts of aluminum powder;

[0152] In parts by weight, the aluminum glue B comprises the following raw materials: 100 parts of oily polyurethane, 8 parts of adhesive, 25 parts of cyclized phosphate flame retardant, 25 parts of butanone, and 9 parts of aluminum powder;

[0153] A layer of aluminum glue A with a thickness of 0.5 to 1.5 mm is evenly coated on the outer surface of the base fabric material, and after the aluminum glue A is dried, a layer of aluminum glue B with a thickness of 0.5 to 1.5 mm is evenly coated on the surface, and then dried and cured at 140°C for 2 hours to obtain the flame retardant outer layer;

[0154] Step (2) preparing a waterproof and breathable layer:

[0155] The waterproof and breathable layer is obtained by laminating the base fabric material and the PTFE membrane;

[0156] The base fabric material is aramid, and the working condition parameters of the lamination process include: lamination temperature is 140°C, lamination pressure is 1.4Mpa, and lamination time is 10 seconds;

[0157] Step (3) Preparation of high temperature insulation layer:

[0158] High temperature resistant fiber materials are used for textile processing to obtain high temperature resistant fabrics;

[0159] The high temperature resistant fabric and the aerogel insulation material are subjected to a reinforcing composite treatment to obtain the high temperature insulation layer;

[0160] The high temperature resistant fiber material is aramid;

[0161] The aerogel thermal insulation material is a carbon-based aerogel;

[0162] The strengthening and composite treatment steps include the following processes: aerogel is mixed into silica sol, uniformly dispersed in the silica sol by ultrasound or stirring, and then the high temperature cloth is impregnated with silica sol;

[0163] Step (4) preparing a low temperature antifreeze layer:

[0164] Using low-temperature resistant materials for textile processing to obtain low-temperature resistant fabrics;

[0165] A low-temperature resistant coating is applied on the surface of the low-temperature resistant fabric to form a coating, and then heat-treated to obtain the low-temperature antifreeze layer;

[0166] Wherein, the low temperature resistant coating is a polyimide coating, the thickness of the coating is 0.5 to 1.5 mm, and the working condition parameters of the heat treatment include: temperature of 150° C., time of 20 minutes;

[0167] Step (5) preparing a comfort layer:

[0168] blending the preselected fiber materials to form blended yarn;

[0169] Weaving the blended yarn into a fabric in a warp and weft interlaced manner to obtain the comfort layer;

[0170] When worn, the comfort layer is close to the body;

[0171] The pre-selected fiber material is cotton or a blended fabric;

[0172] Step (6): stacking the flame retardant outer layer, the waterproof and breathable layer, the high temperature insulation layer, the low temperature antifreeze layer and the comfort layer in sequence, and cutting and sewing them into the shape of a fire suit.

[0173] Example 2

[0174] This example provides a special clothing resistant to ultra-high temperature and ultra-low temperature, which is different from Example 1 only in that: in step (1) of preparing the flame-retardant outer layer: in parts by weight, the aluminum glue A comprises the following raw materials: 100 parts of oily polyurethane, 10 parts of adhesive, 30 parts of cyclized phosphate flame retardant, 20 parts of butanone, and 8 parts of aluminum powder; in parts by weight, the aluminum glue B comprises the following raw materials: 100 parts of oily polyurethane, 10 parts of adhesive, 30 parts of cyclized phosphate flame retardant, 30 parts of butanone, and 10 parts of aluminum powder;

[0175] The thickness of the coating in the step (4) of preparing the low-temperature antifreeze layer is 0.8 mm.

[0176] Example 3

[0177] This example provides a special clothing resistant to ultra-high temperature and ultra-low temperature, which is different from Example 1 only in that: in step (1) of preparing the flame-retardant outer layer: in parts by weight, the aluminum glue A comprises the following raw materials: 100 parts of oily polyurethane, 5 parts of adhesive, 20 parts of cyclized phosphate flame retardant, 15 parts of butanone, and 4 parts of aluminum powder; in parts by weight, the aluminum glue B comprises the following raw materials: 100 parts of oily polyurethane, 5 parts of adhesive, 20 parts of cyclized phosphate flame retardant, 20 parts of butanone, and 7 parts of aluminum powder;

[0178] The thickness of the coating in the step (4) of preparing the low-temperature antifreeze layer is 1.2 mm.

[0179] Test Case

[0180] This example conducts performance tests on the ultra-high temperature and ultra-low temperature resistant special clothing provided in the embodiments and comparative examples.

[0181] Test method: Use a high and low temperature test chamber to conduct heating and cooling tests. After 30 minutes of constant temperature, the weight change of the detected material exceeds 2%.

[0182] The test results are shown in Table 1.

[0183] Table 1 Performance test results

[0184]

[0185] To sum up, the present invention provides a special clothing that is resistant to ultra-high temperatures and ultra-low temperatures. The special clothing provided by the present invention has the characteristics of resistance to ultra-high temperatures and ultra-low temperatures, can meet the use requirements of fire-fighting clothing, thermal insulation clothing, ultra-low temperature clothing, special rescue clothing, etc., and has a wide range of uses.

[0186] Various embodiments of the present invention may be presented in the form of a range; it should be understood that the description in the form of a range is only for convenience and brevity, and should not be understood as a rigid limitation on the scope of the present invention; therefore, the range description should be considered to have specifically disclosed all possible sub-ranges and single numerical values ​​within the range. For example, the range description from 1 to 6 should be considered to have specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which apply regardless of the range. In addition, whenever a numerical range is indicated herein, it is meant to include any cited number (fractional or integer) within the indicated range.

[0187] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A special clothing resistant to ultra-high and ultra-low temperatures, characterized in that: The ultra-high temperature and ultra-low temperature resistant special clothing comprises a composite layer structure, which comprises a flame retardant outer layer, a waterproof and breathable layer, a high temperature heat insulation layer, a low temperature antifreeze layer and a comfort layer stacked in sequence.

2. The ultra-high temperature and ultra-low temperature resistant special clothing according to claim 1, characterized in that: The flame retardant outer layer is obtained by coating aluminum glue A and aluminum glue B in sequence on the outer surface of the base fabric material; In parts by weight, the aluminum glue A comprises the following raw materials: 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 15-20 parts of butanone, and 4-8 parts of aluminum powder; In parts by weight, the aluminum glue B comprises the following raw materials: 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 20-30 parts of butanone, and 7-10 parts of aluminum powder.

3. The ultra-high temperature and ultra-low temperature resistant special clothing according to claim 2, characterized in that: The adhesive is phenolic resin, and the base fabric material includes aramid 1313.

4. The ultra-high temperature and ultra-low temperature resistant special clothing according to claim 2, characterized in that: The method for preparing the flame retardant outer layer comprises the following steps: Mix 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 15-20 parts of butanone, and 4-8 parts of aluminum powder, and stir evenly to form aluminum glue A; Mix 100 parts of oily polyurethane, 5-10 parts of adhesive, 20-30 parts of cyclized phosphate flame retardant, 20-30 parts of butanone, and 7-10 parts of aluminum powder, stir evenly to form aluminum glue B; A layer of aluminum glue A with a thickness of 0.5 to 1.5 mm is evenly coated on the outer surface of the base fabric material. After the aluminum glue A is dried, a layer of aluminum glue B with a thickness of 0.5 to 1.5 mm is evenly coated on the surface, and then dried and cured to obtain the flame retardant outer layer.

5. The ultra-high temperature and ultra-low temperature resistant special clothing according to claim 1, characterized in that: The waterproof and breathable layer is obtained by laminating the base fabric material and the PTFE membrane; The base fabric material includes aramid, and the working condition parameters of the lamination process include: a lamination temperature of 140° C., a lamination pressure of 1.4 MPa, and a lamination time of 10 seconds.

6. The ultra-high temperature and ultra-low temperature resistant special clothing according to claim 1, characterized in that: Preparation method of the high temperature thermal insulation layer The process includes: High temperature resistant fiber materials are used for textile processing to obtain high temperature resistant fabrics; The high temperature resistant fiber material includes at least one of aramid fiber and polytetrafluoroethylene fiber.

7. The ultra-high temperature and ultra-low temperature resistant special clothing according to claim 6, characterized in that: The method for preparing the high temperature thermal insulation layer also The process includes: The high temperature resistant fabric and the aerogel insulation material are subjected to a reinforcing composite treatment to obtain the high temperature insulation layer; The aerogel thermal insulation material includes SiO2 aerogel or carbon aerogel; The strengthening and composite treatment steps include the following processes: aerogel is mixed into silica sol, uniformly dispersed in the silica sol by ultrasound or stirring, and then the high-temperature cloth is impregnated with silica sol.

8. The ultra-high temperature and ultra-low temperature resistant special clothing according to claim 1, characterized in that: The preparation method of the low-temperature antifreeze layer comprises the following steps: Using low-temperature resistant materials for textile processing to obtain low-temperature resistant fabrics; A low-temperature resistant coating is applied on the surface of the low-temperature resistant fabric to form a coating, and then heat-treated to obtain the low-temperature antifreeze layer; Among them, the low-temperature resistant material is a polyimide material, the low-temperature resistant coating is a polyimide coating, the thickness of the coating is 0.5-1.5 mm, and the working condition parameters of the heat treatment include: temperature of 150° C. and time of 20 minutes.

9. The ultra-high temperature and ultra-low temperature resistant special clothing according to claim 1, characterized in that: Preparation method of the comfort layer The process includes: blending the preselected fiber materials to form blended yarn; Weaving the blended yarn into a fabric in a warp and weft interlaced manner to obtain the comfort layer; When worn, the comfort layer is close to the body.

10. The ultra-high temperature and ultra-low temperature resistant special clothing according to any one of claims 1 to 8, characterized in that: The types of the ultra-high temperature and ultra-low temperature resistant special clothing include at least one of fire-fighting clothing, heat-insulating clothing, ultra-low temperature clothing and special rescue clothing.

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