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New page: '''Kevlar''' is the registered trade mark of a para-aramid (aromatic polyamide) fiber produced by DuPont. Chemists Stephanie Kwolek and Herbert Blades first synthesized Kevlar in 1965, Kwo...
'''Kevlar''' is the registered trade mark of a para-aramid (aromatic polyamide) fiber produced by DuPont. Chemists Stephanie Kwolek and Herbert Blades first synthesized Kevlar in 1965, Kwolek [[patent]]ed the fiber in 1966. Fibers of Kevlar consist of long [[molecule|molecular]] chains produced from '''poly-paraphenylene terephthalamide'''. The chains are highly oriented with strong interchain bonding, which results in a unique combination of properties, including:
*high tensile strength at low weight (five times stronger than the same weight of [[steel]])
*low electrical conductivity
*high chemical resistance
*low thermal shrinkage
*excellent dimensional stability
*high cut resistance
*flame resistant
*self-extinguishing
Kevlar does not [[oxidization|rust]] nor corrode and is used in bullet proof vests, underwater cables, brake linings, space vehicles, boats, parachutes, skis, and building materials.
==See also==
*[[Nomex]]
*high tensile strength at low weight (five times stronger than the same weight of [[steel]])
*low electrical conductivity
*high chemical resistance
*low thermal shrinkage
*excellent dimensional stability
*high cut resistance
*flame resistant
*self-extinguishing
Kevlar does not [[oxidization|rust]] nor corrode and is used in bullet proof vests, underwater cables, brake linings, space vehicles, boats, parachutes, skis, and building materials.
==See also==
*[[Nomex]]