Polyamide (PA) feem ntau hu ua nylon, thiab ntev carbon saw nylon hais txog cov nylon ntau yam nrog 10 lossis ntau dua methylene pawg ntawm cov ntawv cog lus amide nyob rau hauv cov saw tseem ceeb ntawm macromolecule, xws li PA11, PA12, PA1010, PA1212, PA1012, thiab lwm yam. .

Ntawm lawv, PA610 thiab PA612 ob aliphatic polyamides, kev xaiv ntawm cov saw ntev diamines thiab hexamethylene diamine condensation, nruj me ntsis hais lus, tsis ua raws li cov ntsiab lus saum toj no, vim qhov ntev ntawm diacid ntau tshaj 10 carbon, nws lub sij hawm ntev nyob rau hauv lub sij hawm luv luv. ntawm ib nrab yog kom tau raws li lub ntsiab lus ntawm ntev carbon saw nylon, thaum lub sij hawm ntev ntawm diamine tsuas yog 6 carbon, uas ua rau cov khoom kub thiab mechanical zog thiab lwm yam khoom zoo dua li ntev carbon saw nylon, me ntsis qis dua Lub hom phiaj nylon PA6. thiab PA66, yog li PA610 thiab PA612 feem ntau yog cais raws li ntev carbon saw nylons.

PA6 thiab PA66 muaj qhov nqus dej siab, ua rau muaj qhov sib txawv ntawm cov khoom loj thiab cov khoom thiab ua haujlwm kub.Ntev carbon saw nylons tuaj yeem ua rau qhov tsis txaus ntawm cov saw hlau luv luv vim qhov ntev methylene saw ntu ntawm cov pawg amide uas nyob ib sab.Ntxiv nrog rau cov khoom tseem ceeb ntawm polyamides, lawv kuj muaj cov hluav taws xob tsawg, kev nqus dej zoo, kev ua kom zoo, nkees tsis tshua muaj qhov kub thiab txias.