What material is fireproof clothing made of?

It is usually asbestos, and some of the better ones are asbestos made of zirconium-containing aluminum zirconide and silicon mixture, and of course some are directly made from naturally occurring things.

Usually it can withstand 1400 degrees for more than 30 seconds without obvious internal temperature changes, and the internal temperature rise does not exceed 5 degrees for more than 5 minutes.

Of course there are some cheap ones, and of course they are not so high.

As for the temperature of 4000 degrees, at least for now, for protective clothing, such a high temperature has not yet been reached.

However, if it is equipment, such as some equipment that needs to reach 4000 degrees, they can achieve isolation, mainly vacuum isolation, and then the outside is realized by other cooling equipment and insulation materials.

However, the protective clothing is currently unable to withstand 4000 degrees, and the material mentioned above barely maintains its stable properties at 1400 degrees, and basically begins to undergo structural changes at 1600 degrees, and will soon lose its thermal insulation properties.

At present, there are two more common materials on the market: 1) Rock wool, which is usually used for heat insulation and heat preservation, and the effect is about 100. 2) Aluminum silicate cotton, also called glass wool and asbestos.

With the use of flame retardants, fireproof (fire-resistant) materials, the effect is about 1000. ps: This kind of thing is very itchy to touch**.。。。

The good code material for making firefighting clothing is made of composite materials of flame retardant fiber fabric and vacuum aluminized film, which does not contain asbestos, and has the advantages of light specific gravity, high strength, flame retardant, high temperature resistance, heat radiation resistance, waterproof, wear-resistant, fold-resistant, harmless to the human body, etc., which can effectively ensure that firefighters and workers in high-temperature places are close to the heat source and are not burned by heat, flame and steam.

Fireproof clothing is made up of multiple layers of fabrics such as outer layer, thermal insulation layer, comfort layer, etc., and the material of this combined part can be allowed to be made into a single layer or multiple layers. The outer layer of the heat-insulating clothing should be made of metal aluminum foil surface material with reflected radiant heat, and can meet the performance requirements of the basic clothing manufacturing process requirements and the corresponding standards of accessories. There are two main types of flame retardant fabrics, one is cotton flame retardant twill yarn card, and one is C n cotton brocade flame retardant cloth, which has good flame retardant performance after being covered with aluminum foil, and the outer aluminum foil layer can also play a good role in preventing heat radiation.

Raise socks.

The material of the fire jacket is made of flame retardant fiber fabric and vacuum aluminized film composite material, does not contain asbestos, has the advantages of light specific gravity, high strength, flame retardant, high temperature resistance, heat radiation resistance, waterproof, wear resistance, folding resistance, harmless to the human body, etc., which can effectively ensure that firefighters and workers in high temperature places are close to the heat source and are not burned by heat, flame and steam. <

The material of the firefighting suit is made of flame retardant fiber fabric and vacuum aluminized film composite material, which does not contain asbestos, and has the advantages of light specific gravity, high strength, flame retardant, high temperature resistance, heat radiation resistance, waterproof, wear-resistant, fold-resistant, harmless to the human body, etc., which can effectively ensure that firefighters and workers in high-temperature places are close to the heat source and are not burned by heat, flames and steam.

Whenever a fire breaks out, after receiving the alarm, the firefighters will drive the fire truck and wear firefighting uniforms to quickly arrive at the scene and rush into the fire to extinguish the fire. Do you want to know why firefighters are not afraid of fire when they wear firefighting suits?

The clothes we usually wear are made of different materials. Some are made of cotton, some are made of silk and wool, and some are made of chemical raw materials, such as nylon, polyester, acrylic, etc.

However, the raw materials of all these clothes have a common drawback, which is the fear of fire. According to incomplete statistics, 33% of people who were seriously injured by the fire were caused by the burning of their clothes.

Firefighters are responsible for the important task of fighting fires and protecting people's lives and property, and if they also wear clothing that is afraid of fire, it is obvious that they will not be able to carry out the arduous task of saving people.

After experiments, it has been found that a garment made of cotton will become charred and blackened at a temperature of 400 degrees, let alone clothes made of chemical fiber, but clothes made of asbestos can withstand a high temperature of 1000 degrees.

Therefore, people use asbestos to be processed and spun into asbestos cloth, and then use asbestos cloth to make protective products such as clothes, hats, gloves and other protective products worn by firefighters. With these clothing protections that are not afraid of fire, firefighters are not afraid of fire and heat.

Cloth spun from asbestos fibers. Because it is non-combustible, it can remove dirt from the cloth, so it is often called "fire cloth" or "fire cloth" in the early history books of our country.

In the Yuan Dynasty, China had a very high technical level in the mining of asbestos, the weaving and cleaning of asbestos cloth.

There are many varieties and specifications of asbestos cloth, and the fabric structure has plain weave, twill weave and mountain twill, etc., and the weight range of the fabric is 100 grams to 1000 grams per square meter, and the thickness of millimeters to millimeters.

Asbestos cloth has good fire resistance and heat insulation properties, and is also commonly used as a fireproof and thermal insulation material for automobiles, planes and trains, and has been used in refrigeration equipment, welders' protective clothing, theater screens, steelmaking, etc.

Firefighting clothing has evolved with the times. But either is an important tool used by firefighters to protect their bodies. Therefore, it should have the following characteristics:

It has fire resistance, heat resistance and heat insulation, and it also has strong toughness to prevent the impact and collision of sharp objects. In addition, it must have the ability to prevent the damage of chemical substances to **; Adapt to changes in the external environment, such as cold and warm, wind and rain, and be able to maintain physical strength and vigorous energy; The material should be elastic. Firefighting suits.

The firefighting suit is made of a composite material of flame-retardant fiber fabric and vacuum aluminized film, which does not contain asbestos, and has the advantages of light specific gravity, high strength, fire resistance, high temperature resistance, heat radiation resistance, waterproof, wear-resistant, fold-resistant, harmless to the human body, etc., which can effectively ensure that firefighters and operators in high-temperature places are close to the heat source and are not burned by heat, flames and steam. Firefighting suits include tops, pants, gloves, hoods, and foot guards.

Firefighting clothing is a firefighting clothing worn by firefighters and high-temperature workers when working near the fire, which has the characteristics of fire prevention, heat insulation, wear resistance, folding resistance, flame retardant, anti-radiation heat, etc., and the temperature of anti-radiation heat is as high as 1000. It is divided into two types: split ordinary type and split back respirator type.

Special protective clothing worn by firefighters when they are exposed to strong radiant heat in the fire extinguishing and rescue area near the flame area, which is used to insulate their upper and lower torso, head, hands and feet, including fireproof tops, fireproof pants, fireproof hoods, fireproof gloves and fireproof foot covers.

Firefighting clothing is made of a composite of multiple layers of fabrics such as outer layer, thermal insulation layer, comfort layer, etc., and the material of this combined part can be made into a single layer or multiple layers. The outer layer of the heat-insulating clothing should be made of metal aluminum foil surface material with reflected radiant heat, and can meet the performance requirements of the basic garment manufacturing process and the corresponding standard of accessories.

Flame retardant textile fabrics.

The fabric of firefighting uniforms is generally made of flame-retardant textile fabrics. At present, most foreign countries such as the United States, France, Japan, the United Kingdom and other countries are using aromatic polyamide fiber fabrics (NOMAX fiber fabrics), which have good flame retardant properties, high strength, high thermal stability, extremely low toxicity of combustion products, and aramid fabrics have certain acid and alkali resistance.

Nomex is an American DuPont Nomex fiber with good thermal stability, does not melt at 377 degrees, but will decompose. Nomex is a blend of 95 aramid fibers and 5 high-strength para-aramid fibers that can be used to create high-strength fabrics that block most chemicals and acids. Another product commonly used in the Asian market, it is a blend of 75 Nomex, 23 pairs of aramid and 2 carbon fibers.

Kermel is France. Kemil is made of polyamide-imide, which belongs to the same family as metaaromatic polyamides. Due to its smooth surface and almost rounded cross-section, the camir fibers are softer to the touch than other polyamide fabrics.

Chemille is also resistant to chemicals, is highly resistant to abrasion, has a thermal conductivity half lower than other fabrics made from aramid fibers, and can withstand temperatures of up to 250 degrees Celsius for long periods of time.

Kanox is a pre-oxidized fiber obtained by incompletely carbonizing polyacrylonitrile fibers (which makes the fibers refractory). It blocks chemicals, heat radiation and melted aramid sewing threads and has excellent thermal stability. Carbonized polyacrylonitrile begins to decompose at 300 degrees, but it does not naturally decompose until the temperature reaches 550 degrees.

Protective clothing made of polyacrylonitrile fabric can be exposed to high temperatures for a short period of time.

nomex@ heat-resistant and flame-retardant fiber: chemical name: meta-aromatic polyamide fiber, domestic aramid 1313 fiber.

kkevlar@ high-density and low-extension bulletproof fiber KE: chemical name: para-aromatic polyamide fiber, domestic aramid 1414 fiber.

P-140 Fiber: Nylon-wrapped carbon fiber.

Polymer composites: composite microporous PTFE aramid fabrics.