# Technora

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Aromatic polyamide synthetic fibre

**Technora** is an [aramid](/source/Aramid) that is useful for a variety of applications that require high strength or [chemical resistance](/source/Chemical_resistance). It is a brand name of the company [Teijin Aramid](/source/Teijin_Aramid).

Technora was used on January 25, 2004 to suspend the NASA Mars rover *[Opportunity](/source/Opportunity_(rover))* from its parachute during descent.

It was also later used by NASA as one of the materials, combined with nylon and [Kevlar](/source/Kevlar), making up the parachute that was used to perform a braking manoeuvre during atmospheric entry of the rover *[Perseverance](/source/Perseverance_(rover))* that landed on Mars on February 18, 2021.[1]

## Production

Technora is produced by [condensation polymerization](/source/Condensation_polymerization) of [terephthaloyl chloride](/source/Terephthaloyl_chloride) (TCl) with a mixture of [p-phenylenediamine](/source/P-phenylenediamine) (PPD) and 3,4'-diaminodiphenylether (3,4'-ODA).[2] The polymer is closely related to Teijin Aramids's [Twaron](/source/Twaron) or DuPont's [Kevlar](/source/Kevlar). Technora is derived from two different diamines, 3,4'-ODA and PPD, whereas Twaron is derived from PPD alone. Because only one amide solvent is used in this very straightforward procedure, spinning can be completed immediately after polymer synthesis.

## Physical properties

This section needs expansion. You can help by adding missing information. (February 2021)

Technora has a better strength to weight ratio than steel.[3] Technora also has fire resistant properties which can be beneficial.

## See also

- [Vectran](/source/Vectran)

## References

1. **[^](#cite_ref-1)** Strickland, Amanda. ["'Dare mighty things': The man behind the secret message in the Mars rover's parachute"](https://www.cnn.com/2021/02/27/world/nasa-mars-perseverance-rover-parachute-scn/index.html). *cnn.com*. Retrieved 2021-02-28.

1. **[^](#cite_ref-2)** [Stephanie Kwolek](/source/Stephanie_Kwolek), Hiroshi Mera, Tadahiko Takata “High-Performance Fibers” in Ullmann's Encyclopedia of Industrial Chemistry 2002, Wiley-VCH, Weinheim. [doi](/source/Doi_(identifier)):[10.1002/14356007.a13_001](https://doi.org/10.1002%2F14356007.a13_001)

1. **[^](#cite_ref-nasa20210216_3-0)** [*Engineering & Tech Overview – NASA Perseverance Mars Rover*](https://www.youtube.com/watch?v=P-M1Jb7FlSg). 16 February 2021. [Archived](https://ghostarchive.org/varchive/youtube/20211214/P-M1Jb7FlSg) from the original on 2021-12-14. Retrieved 17 February 2021 – via YouTube.

v t e Teijin Ltd. Corporate Directors Jun Suzuki (President & CEO) Teijin Divisions Teijin Aramid Toho Tenax Teijin Pharma Teijin Frontier Teijin DuPont Films Infocom Corporation Teijin Brandnames Technora TeijinConex Twaron Sulfron Tenax PANLITE

v t e Fibers Natural Plant Abacá Bagasse Bamboo Bashō Coir Cotton Fique Flax Linen Hemp Jute Kapok Kenaf Lotus silk Piña Pine Raffia Ramie Rattan Sisal Wood Animal Alpaca Angora Byssus Camel hair Cashmere Catgut Chiengora Guanaco Hair Llama Mohair Pashmina Qiviut Rabbit Silk Tendon Spider silk Wool Vicuña Yak Mineral Asbestos Synthetic Regenerated Artificial silk Milk fiber Semi-synthetic Acetate Diacetate Lyocell Modal Piñatex Rayon Triacetate Mineral Boron Basalt Carbon Glass Wool Metallic Mineral wool Polymer Acrylic Aramid Twaron Kevlar Technora Nomex Microfiber Modacrylic Nylon Olefin Polyester Polyethylene UHMWPE Spandex Vectran Vinylon Vinyon Zylon Category Commons

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Adapted from the Wikipedia article [Technora](https://en.wikipedia.org/wiki/Technora) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Technora?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.