Polyamide (inonziwo PA kana Nylon) ndiwo mazwi akajairika eiyo thermoplastic resin, iine yakadzokororwa amide boka pane yakakosha mamorekuru cheni. PA inosanganisira aliphatic PA, aliphatic - inonhuhwirira PA uye inonhuhwirira PA, umo aliphatic PA, yakatorwa kubva kuhuwandu hweatomu dzekabhoni mune yekugadzira monomer, ine mhando zhinji, inokwanisa kwazvo uye nekushandisa kwakakura.
Iine miniaturization yemotokari, iko kushanda kwakanyanya kwemagetsi nemagetsi zvigadzirwa, uye kumhanyisa kweyakareruka maitiro eanogadzira michina, kudiwa kwenylon kunenge kuri kukwirira uye kukuru. Nylon yekukanganisa kwekuzvarwa zvakare chinhu chakakosha kudzikamisa mashandisirwo ayo, kunyanya paPA6 nePA66, zvichienzaniswa nemhando dzePA46, PA12, zvine mukana wakasimba wemutengo, kunyange kumwe kuita kusingakwanise kuita zvinodiwa nekusimudzirwa kwemaindasitiri ane hukama.