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Kevlar

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Kevlar
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Kevlar is the registered trademark for a para-aramid synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, this high-strength material was first commercially used in the early 1970s as a replacement for steel in racing tires. Typically it is spun into ropes or fabric sheets that can be used as such or as an ingredient in composite material components. Currently, Kevlar has many applications, ranging from bicycle tires and racing sails to body armor, because of its high tensile strength-to-weight ratio; by this measure it is 5 times stronger than steel. It is also used to make modern drumheads that withstand high impact. When used as a woven material, it is suitable for mooring lines and other underwater applications. A similar fiber called Twaron with roughly the same chemical structure was developed by Akzo in the 1970s; commercial production started in 1986, and Twaron is now manufactured by Teijin.
Kevlar
English Wikipedia http://en.wikipedia.org/wiki/Kevlar
Spanish wikipedia http://es.wikipedia.org/wiki/Kevlar
Wiki page external link http://www.kevlar.com/ http://plastics.inwiki.org/Kevlar http://web.mst.edu/~wlf/Synthesis/kevlar.html http://www.bodyarmornews.com/bullet-proof-vest/ http://www.matweb.com/search/SpecificMaterial.asp?bassnum=PDUKEV29 http://www.ngcc.org.uk/DesktopModules/ViewDocument.aspx?DocumentID=1003 http://www.designdictionary.co.uk/en/kevlar.htm http://www.lbl.gov/MicroWorlds/Kevlar/index.html http://www.pslc.ws/macrog/aramid.htm

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Fecha publicación: 1.2.2020

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