What is the difference between the materials used to make a spacesuit and the materials used to make

The materials used to make spacesuits are completely different from the materials of ordinary clothes, first of all, spacesuits are to protect the lives of astronauts, and the materials used are all new materials that can resist the complex factors of space, and the materials of ordinary clothes are only used for beauty and warmth.

The production of space spacesuits must be materials with high pressure resistance and good sealing, and ordinary materials must have good air permeability, which should be the biggest difference.

There is a difference in the ability to resist radiation and keep warm. The spacesuit material must be able to resist a large number of radiation hazards in the space environment, and the temperature of the space environment is extremely low, and the ability to keep warm is also very important, which is much more complex than ordinary clothing materials.

Spacesuits. Materials include cotton knitwear, synthetic fiber filling, wool and silk cotton, nylon membranes, aluminized fabrics, and more. In general, spacesuits are divided into inner spacesuits and outer spacesuits.

In fact, the spacesuit in the cabin is not strictly speaking, it is not a spacesuit, and its production is very different from a real spacesuit.

1. It is structurally divided into six layers:

1.Underwear comfort layer: Astronauts can't wash and change clothes during a long flight, and a lot of sebum and sweat can contaminate the underwear, so choose cotton knitwear that is soft, hygroscopic and breathable.

2.Insulation: Insulation is used to maintain a comfortable temperature environment when the ambient temperature changes in a small range. Choose materials that are insulating, highly heat-resistant, soft, and lightweight, such as synthetic fiber fillings, wool, and silk cotton.

3.Ventilated suits and water-cooled suits (liquid-cooled suits): When an astronaut has a high body temperature, ventilated suits and water-cooled suits dissipate heat differently.

If the body generates more than 350 kcal hours (e.g. outdoor activities), the ventilation suit cannot meet the heat dissipation requirements, and then the cooling is carried out through the water-cooled suit. Ventilation and water-cooled clothing are mostly made of pressure-resistant, durable, and flexible plastic pipes.

4.Airtight restriction layer: In a vacuum environment, only a certain amount of pressure around the astronaut's body can ensure the safety of the astronaut's life. As a result, the innerliner is made of materials such as chlorine-coated butyllon-coated tape with good air tightness.

5.Insulation: also called vacuum insulation. When the astronaut is outside the capsule, the thermal insulation prevents overheating or cooling. It consists of multiple layers of aluminized polyimide film.

or polyester film with a non-woven fabric sandwiched between each layer.

6.Outer protective layer: It is the outermost layer of the spacesuit, which is required to prevent fire, thermal radiation and various factors in space from harming the human body. This layer is mostly made of aluminized fabric.

2. There are two main types of spacesuits.

One is a spacesuit worn inside the spacecraft, which is an emergency device used in the cockpit of the spacecraft. When the spacecraft fails, it can protect the astronauts from returning safely to the surface. The other is the spacesuit worn by astronauts when they work outside the spacecraft, which is used to ensure that astronauts enter outer space.

or land on the surface of their own patient's celestial body to complete certain tasks.

It can be seen that spacesuits must not only use materials such as high-strength polyester, but also supplement them with a variety of metals and adhesives.

Wait. Because the spacesuit is considered secret by the respective countries of production, it is impossible for ordinary people to know the details and specific materials of their production.

Spacesuit material: knitted cotton, fiber floc, coated neoprene nylon tape, polyester film. The airtight restriction layer of the spacesuit, which mainly maintains the safety of the astronaut's vital signs under vacuum pressure, is made of neoprene nylon adhesive tape material, which not only has a good pressure bearing effect, but also will not be so stiff.

The insulation layer ensures the body temperature of the astronauts, so some fiber floc materials are used, filled with silk cotton, wool, etc.

The spacesuit is made of polymer fibers, because the clothes made of this material are very warm and will not be affected by other external influences.

The spacesuit is made of organic cotton knitwear, wool and silk cotton, etc., which can only be made from these materials due to the special nature of the spacesuit.

Spacesuits. The production materials are knitted cotton, fiber wadding, silk cotton, wool, neoprene nylon tape, multi-layer aluminized polyester literal fiber.

films, etc. 1. The innermost layer is often in contact with the astronaut's body, and the bridge barricade spacesuit will be hot if it is well sealed, so there will be a lot of sebum and sweat sticking to it, and it will be made of knitted cotton materials with good breathability and sweat absorption effect.

2. The insulation layer can prevent the cold from penetrating into the clothes, and the fiber wadding material will be used carefully, and it can also be filled with silk cotton, wool, etc.

3. Liquid cooling layer, if the astronaut's body temperature is too hot, he needs a certain amount of heat dissipation to meet the condition of the body, otherwise he will be trapped in this hot small space and will be prone to heat stroke.

Therefore, the liquid cooling layer mainly meets the heat dissipation requirements of clothing.

4. The airtight limiting layer is mainly to meet the vital signs of astronauts under vacuum pressure.

Safety, often made of neoprene nylon adhesive tape, the internal texture presents a network structure, so not only the pressure bearing effect is good, but also not so stiff.

5. The thermal insulation layer is actually a multi-layer aluminized polyester fiber film design, which has the effect of vacuum heat insulation.

6. The protective layer of the outer cover, which is the most important layer of the spacesuit, not only can withstand high and low temperatures, but also play a role in preventing radiation, to know the rays in the universe, the ultraviolet rays of the sun.

There is no atmosphere.

The protection will radiate directly to the body, causing very serious harm.

Underwear comfort layer: Astronauts can not wash and change clothes during long-term flights, and a large amount of sebum and sweat will contaminate underwear, so cotton knitwear with soft texture, moisture absorption and breathability is used.

Thermal layer: In the case of a small range of ambient temperature changes, the thermal layer is used to maintain a comfortable temperature environment. Choose materials with good warmth, high thermal resistance, softness and light weight, such as synthetic fiber wadding, wool and silk cotton.

In the case of an astronaut's body being too hot, ventilated suits and water-cooled suits dissipate heat in different ways. If the body produces more than 350 kcal hours (such as outside the cabin), the ventilated suit cannot meet the heat dissipation requirements, and the water-cooled suit will be cooled down. Ventilated and water-cooled clothing are mostly made of compression-resistant, durable, and flexible plastic pipes, such as PVC pipes or nylon membranes.

Airtight Restriction Layer: In a vacuum environment, the life safety of astronauts can only be guaranteed if there is a certain amount of pressure around the astronaut's body. Therefore, the inner liner is made of materials such as coated neoprene nylon tape with good air tightness.

The limiting layer is made of fabrics with high strength and low elongation, and is made of polyester fabrics. Due to the difficulty of movement after compression, various structural forms are used for each joint, such as mesh fabric collapse form, bellows type, orange valve type, etc., and the rotation structure of the airtight bearing is used to improve its mobility.

Thermal insulation: also called vacuum insulation. When astronauts are operating outside the capsule, the thermal insulation acts as protection from overheating or overcooling.

It is made with multiple layers of aluminized polyimide film or polyester film sandwiched between the layers with a non-woven fabric. The membranes are separated by a network and pasted together to form a shield. It has good thermal insulation and protection against radiation, and the extravehicular spacesuit must have this layer.

Outer cover protective layer: It is the outermost layer of the spacesuit, which requires fire prevention, heat radiation protection and protection against the harm of various factors in space (micrometeors, cosmic rays, etc.) to the human body. This layer is mostly made of aluminized fabric.

This jacket requires strong anti-abrasion and high temperature resistance, in addition to protecting the internal layers from damage, but also pay attention to the color, generally white or golden yellow is better.