Nylons Nylon is the generic term for a class of polyamides containing repeating amide groups (—CONH —.), connected by methylene units (—CH2— ) in the polymer structure. There are several types of polyamides, including the ureas, melamines,…

Advantages Plastics are light in weight, but for their weight, they are prodigiouslystrong. They can be changed into end products by relatively simple means,and they have a good appearance and a good feel. The advantages in theuse of plast…