During the World War II, nylon became a very important material in the production of women's stockings. It was also used in the production of tires, seatbelts and ballistic cloth. It was first used commercially in 1938 in a nylon-bristled toothbrush.
During the polymerization process, comonomers and stabilizers are added to modify the chemical properties of the nylon. It also enables the nylon to withstand alkali and inorganic acids. It has a tenacity of 6 to 8.5 gm/den.
Nylon has high tensile strength and is used for tire cords. In addition, it has a strong elasticity. Moreover, it has good impact resistance.
Nylon is a polymer made from lactam and amino acid. It is very hygroscopic and has excellent electrical insulating properties. It also has good absorption ability. However, it is relatively expensive.
The melting point of nylon is about 215 degC. Its viscosity decreases with higher temperatures. It is usually extruded at temperatures of 260 degC.
The lower members of nylons are prone to more hydrolysis by strong acids. Moreover, the molecular weight of the product drops when attacked. During the hot pressing process, entangled carbon fibers exhibit a better thermal bonding effect.
