Astronauts, protection

Nomex is another aramid fiber Kevlar and Nomex differ only in that the substitution pattern in the aromatic rings is para in Kevlar but meta in Nomex Nomex is best known for its fire resistant properties and is used in protective clothing for fire fighters astronauts and race car drivers... 

SC 88 Fluence as the Basis for a Radiation Protection System for Astronauts... 

Remaining production and usage is distributed over a host of industries, many of which are not commonly known. Others include nonferrous metal producers (copper, lead, zinc, etc.), the cement industry, petroleum and hydrocarbon refineries, chemical producers, pulp and paper, food production-related industries anything involving heat and/or hot products. Although only a minor consumer, NASA utilizes refractory tiles to protect astronauts from the harsh conditions that exist on operation of the space shuttle and a refractory brick pad to manage the heat load associated with launch. 

Polybenzimidazole fibre forms one of the most fire-resistant textiles (mp 760 °C usable to 540 °C) and, although very expeusive, is used for high-tech applicatious, such as protective clothing for fire fighters, astronauts and motor-racing drivers. 

Why do astronauts have to wear protective suits when they are on the surface of the moon ... 

Lexan is a clear, transparent, strong, and impact-resistant plastic with literally countless applications. It is used in both protective and everyday eyeglasses as illustrated in Figure 27.10. The Apollo 11 astronauts wore Lexan helmets with Lexan visors on their 1969 trip to the moon. CDs and DVDs are Lexan polycarbonate, as are many cell phones, automobile dashpanels, and headlight and taillight lenses. 

Kevlar and Nomex fabrics are used in the construction of flame-resistant protective clothing used in petroleum and petrochemical operations, by utility workers, NASA astronauts, racing drivers and their crews, the military and any industry where there is a chance of flash fire exposure or electric arc flash or blast... 

A major use of Kevlar is in rigid and soft body armour protective applications. Kevlar fabric is bullet and fragment resistant, lightweight, flexible and comfortable, has excellent thermal properties, is resistant to cuts and chemicals and is flame resistant and self-extinguishing. The uses include bulletproof vests, chainsaw leg protection and military uses for helmets and armoured vehicles, cargo containers, armour shields and cockpit doors. Kevlar and Nomex fabrics are used in the construction of flame-resistant protective clothing used in petroleum and petrochemical operations, by utility workers, NASA astronauts, racing drivers and their crews, the military and any industry where there is a chance of flash fire exposure or electric arc flash or blast. 

The enclosure type of hearing protection completely surrounds the head like an astronaut s helmet. This t e of protection is not too popular due to its cost and discomfort. 

The US National Aeronautics and Space Administration (NASA) accelerated the application research of latent heat-storage materials for the space laboratory in the 1960s. They were used to improve the protection of instruments and astronauts against extreme fluctuations in temperature in... 

It could therefore be concluded that all other textile products constitute the group of technical textiles. But this simple definition is not acceptable. For example, the pressure suits for astronauts, the cold- and water-resistant suits for divers, and the protective apparel of steel workers do not belong to the group of clothing they are technical textiles. For this reason we introduce the following definition ... 

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