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.
The chain molecules in the fibers are highly oriented along the fiber axis. As a result, a higher proportion of the chemical bond contributes more to fiber strength than in many other synthetic fibres in the world. Aramids have a very high melting point (>500 °C (932 °F)). Common aramid brand names include Kevlar, Nomex, and Twaron.
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.
Molded PBI resin has compressive strength 58 ksi and a tensile strength of 23 ksi, a flexural strength of 32 ksi, a ductile compressive failure mode and the density of 1.3 g/cm3. [22] The PBI resin comprises a recurring structural unit represented by the following figure. The recurring structural unit for PBI resin
Nomex sewing threads are inherently flame-retardant and heat-resistant with a tough protective coating that ... and have good tensile strength for lower temperature ...
Kawabata evaluation system measures the mechanical properties of the textiles such as tensile strength, shear strength, surface friction and roughness, The Kawabata evaluation system predicts human responses and understands the perception of softness. Additionally, it can be used to determine the transient heat transfer properties associated ...
Military webbing, or web gear otherwise known as Mil-Spec webbing, is typically made of strips of woven narrow fabrics of high tensile strength, such as nylon, Kevlar, and Nomex. When these materials are used for parachute and ballooning applications, they must also conform to PIA (Parachute Industry Association) standards. [8]
Inert, thermally stable, tough and high tensile strength: Bottles, pipes, inner insulation (dielectric) of coax cable (see also PTFE), plastic bags, etc. Polypropylene: PP: Resistant to acids and alkalies, High tensile strength: Auto parts, industrial fibers, food containers, liner in bags, dishware and as a wrapping material for textiles and food