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What is aramid?

  • Categories:Industry news
  • Author:
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  • Time of issue:2017-11-15

What is aramid?

Aramid fibers are man-made high-performance fibers, with molecules that are characterized by relatively rigid polymer chains. These molecules are linked by strong hydrogen bonds that transfer mechanical stress very efficiently, making it possible to use chains of relatively low molecular weight.
 
The term “aramid” is short for “aromatic polyamide”. Aromatic polyamides were first applied commercially as meta-aramid fibers in the early 1960s, with para-aramid fibers being developed in the 1960s and 1970s.
 
Aramid fibers share some general characteristics that distinguish them from other synthetic fibers:
  • High strength
  • Good resistance to abrasion
  • Good resistance to organic solvents
  • Non-conductive
  • No melting point
  • Low flammability
  • Good fabric integrity at elevated temperatures
 
These unique characteristics derive from the combination of having stiff polymer molecules with a strong crystal orientation as well as close interaction between the polymer chains due to the hydrogen bonds.

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