PA Polyamide series
Polyamide resin, English name nolvamide, referred to as PA, commonly known as nylon (Nvlon), is a general term for polymers containing amide groups in the repeating units of the macromolecular main chain. It has the largest output, the most varieties and the most widely used varieties among the five major engineering plastics. The main varieties are nylon 6, nylon 66, nylon 11, nylon 12, nylon 610, nylon 612, nylon 46, nylon 1010, etc. Among them, nylon 6 and nylon 66 have the largest output, accounting for more than 90% of nylon output. Nylon 11 and Nylon 12 have outstanding low temperature toughness. Nylon 46 has developed rapidly due to its excellent heat resistance. Nylon 1010 is a unique variety in my country with castor oil as raw material.