Technora

Technora is an aramid that is useful for a variety of applications that require high strength or chemical resistance. It is a brand name of the company Teijin Aramid. It was also used to suspend the NASA Mars rover Opportunity from its parachute during descent. It will be used again in the parachute for the Mars 2020 rover.[1]

Production

Technora is produced by condensation polymerization of terephthaloyl chloride (TCl) with a mixture of p-phenylenediamine (PPD) and 3,4'-diaminodiphenylether (3,4'-ODA).[2] The polymer is closely related to Teijin Aramids's Twaron or DuPont's Kevlar. Technora is derived from two different diamines, 3,4'-ODA and PPD, whereas Twaron is derived from PPD alone. This relatively simple process uses only one amide solvent, and therefore spinning can be done directly after the polymer production.

Physical properties

Major industrial uses
gollark: Mwhahahahaha. My red army grows. Soon, I shall *incubate the world*!
gollark: I used mine to make that prize hatch faster, though it is admittedly sick now.
gollark: Well, the *AoND* tool doesn't allow ARing >2d stuff, but there are probably browser extension versions, plus my shellscript.
gollark: (plus there's https://dragcave.net/click/[code] - seeeeeeeecret)
gollark: You just have to refresh https://dragcave.net/image/[code] in fact.

See also

References
  1. Dietrich, Tamara. "Supersonic parachute for Mars 2020 rover to test-launch from Wallops". OrlandoSentinel.com. Retrieved 2018-03-30.
  2. Stephanie Kwolek, Hiroshi Mera, Tadahiko Takata “High-Performance Fibers” in Ullmann's Encyclopedia of Industrial Chemistry 2002, Wiley-VCH, Weinheim. doi:10.1002/14356007.a13_001


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.