Ads
related to: kevlar nomex pants
Search results
Results From The WOW.Com Content Network
Nomex is an example of a meta variant of the aramids (Kevlar is a para aramid). Unlike Kevlar, Nomex strands cannot align during filament polymerization and have less strength: its ultimate tensile strength is 340 MPa (49,000 psi). [2] However, it has excellent thermal, chemical, and radiation resistance for a polymer material.
Kevlar (para-aramid) [2] is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, [ 3 ] [ 2 ] [ 4 ] the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires.
It usually consists of Nomex uniform pants, a Nomex uniform shirt, and a pair of steel-toed uniform boots. The color of the uniform may differ from department to department. These are often worn under firefighting bunker gear, also referred to as PPEs (personal protective equipment), as an extra layer of protection against fires
Modern turnout jackets and pants are made of fire-retardant fabrics, mainly aramids such as Nomex and Kevlar or polybenzimidazole (PBI). In the United States, the National Fire Protection Association publishes the requirements for fire protective clothing under NFPA 1971, Standard on Protective Ensembles for Structural Fire Fighting and ...
Well-known aramid polymers such as Kevlar, Twaron, Nomex, New Star, and Teijinconex) are prepared from diamine and diacid (or equivalent) precursors. These polymers can be further classified according to the linkages on the aromatic subunits. Nomex, Teijinconex, and New Star contain predominantly the meta-linkage.
The A2CU is made of a blend of 92 percent Nomex, five percent Kevlar, and three percent anti-static dissipative fiber. The A2CU has also been adopted for use by the US Air Force, where it is known as the Airman Aircrew Combat Uniform.