During polymerization, the monomers bond together to form a long chain polymer. The resulting polymer has a repeating molecular structure that consists of alternating amine and carboxylic acid groups. This structure is responsible for the exceptional strength and durability of Aramid Fibers.
Once the polymerization process is complete, the resulting polymer is dissolved in a solvent and spun into fibers. The spinning process involves passing the polymer solution through a small nozzle, which creates a thin stream of liquid. As the liquid exits the nozzle, it solidifies into a fiber due to the evaporation of the solvent.
The resulting Aramid Fibers are then stretched and heat-treated to improve their strength and durability. During this process, the fibers are exposed to temperatures of up to 500°C, which causes the molecules to align in a specific direction. This alignment, known as orientation, is responsible for the high tensile strength of aramid fibers.
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