Polyamide fibers are synthetic fibers made of linear macromolecules obtained by the polycondensation of bi-functional components. The most common polyamide fibers are Nylon 6.6 and Nylon 6.
Nylon 6.6 is produced by the polymerization of hexamethylene diamine and adipic acid: it is the typical and most produced polyamidic fiber.
Nylon 6 is produced by the condensation polymerization of caprolactam.
Nylon 6 and 6.6 are not different if compared at room temperature.
Increasing the temperature, tenacity decreases reaching the melting point at 215° (Nylon 6) and 255°C (Nylon 6.6).
Characteristics of polyamide fiber
