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What is aramid?

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Time of issue:2017-11-15
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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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