Nylon is a polymer known generically as aliphatic polyamides. There are many types of niron such as nylon6,6 nylon6,10 nylon6 . The number is behind the name that show amount of carbon in monomer of amine and carboxylic acid. Nylon is thermoplastic that is stronger that addition polymer (peptide bond is strong), hard to flammation( nylon has abond C-H in moleculas is less than the other type polymer. Nylon is tested by mixture of Sodalite (NaOH + Ca(OH) or ammonium is a product when it is burned.