Multiple choice

Which of the following is/are para-aramid synthetic fibre(s)?

  1. Kevlar
  2. Nomex
  3. Twaron

  1. Only 1

  2. Only 2

  3. 1 and 2

  4. 2 and 3

  5. 1 and 3
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Correct answer. Both Kevlar and Twaron are the registered trademark for para-aramid synthetic fibres, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, Kevlar was first commercially used in the early 1970s as a replacement for steel in racing tires. Kevlar is used in modern times to make modern drumheads that withstand high impact, tyre making and underwater applications, etc. Nomex is the registered trademark for meta-aramid synthetic fibre.

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