Nylon, also translated as nylon. The English name Polyamide (referred to as PA) is a general term for thermoplastic resins containing repeating amide groups - [NHCO] - on the main chain of the molecule. Including aliphatic PA, aliphatic-aromatic PA and aromatic PA. Among them, aliphatic PA has many types, large output value, and is widely used, and its name is determined by the detailed carbon number of the constituent monomers.

Nylon was developed by the outstanding American scientist Carothers (Carothers) and a scientific research team under his leadership, and it is the first composition fiber presented in the world. The appearance of nylon has changed the face of textiles, and its composition is a major breakthrough in the fiber industry and an important milestone in polymer chemistry.

The main types of nylon are nylon 6 and nylon 66, which are absolutely dominant, followed by nylon 11, nylon 12, nylon 610, nylon 612, nylon 1010, nylon 46, nylon 7, nylon 9, nylon 13, The new types are nylon 6I, nylon 9T and special nylon MXD6 (barrier resin), etc. There are many types of nylon modifications, such as reinforced nylon, monomer cast nylon (MC nylon), reaction injection molding (RIM) nylon, aromatic Nylon, transparent nylon, high impact (super tough) nylon, electroplated nylon, conductive nylon, flame retardant nylon, nylon and other polymer blends and alloys, etc., meet different special requirements, widely used as metal, wood and other traditional materials Substitutes, as various structural materials.

Nylon is the most important engineering plastic, and its output value ranks first among the five general engineering plastics. Nylon is a polyamide fiber (nylon) is a statement. There are also nylon 1010, nylon 46, nylon 7, nylon 9, nylon 13, new types are nylon 6I, nylon 9T and special nylon MXD6 (barrier resin), etc. There are many kinds of nylon modifications, such as reinforced nylon, Monomer cast nylon (MC nylon), reactive injection molding (RIM) nylon, aromatic nylon, clear nylon, high impact (super tough) nylon, electroplated nylon, conductive nylon, flame retardant nylon, nylon and other polymer blends Nylon sliders produced by many special nylon manufacturers are widely used as substitutes for traditional materials such as metal and wood, as various structural materials.

Nylon later became in English 'the general term for all polyamides composed of coal, air, water or other substances, with abrasion resistance and flexibility, similar to the chemical structure of proteins'.