ʻO ka polyamide (PA) ka mea maʻamau i kapa ʻia ʻo ka nylon, a ʻo ke kaulahao kalapona lōʻihi e pili ana i nā ʻano nylon me 10 a ʻoi aku paha nā hui methylene ma waena o nā kaula amide pili i ke kaulahao nui o ka macromolecule, e like me PA11, PA12, PA1010, PA1212, PA1012, etc. .

I waena o lākou, PA610 a me PA612 ʻelua aliphatic polyamides, ke koho ʻana i nā diamines long-chain a me hexamethylene diamine condensation, ʻōlelo maoli, ʻaʻole i hoʻokō i ka wehewehe i luna, no ka lōʻihi o ka diacid ma mua o 10 carbon, kona lōʻihi manawa i ka wā. ʻO ka hapalua o ka hoʻokō ʻana i ka wehewehe ʻana o ke kaulahao kalapona lōʻihi, ʻoiai ʻo ka lōʻihi o ka diamine he 6 kalapona wale nō, ka hopena i ke kūpaʻa ʻana o nā mea wela a me nā waiwai mechanical a me nā waiwai ʻē aʻe i ʻoi aku ka maikaʻi ma mua o ke kaulahao kalapona lōʻihi, haʻahaʻa haʻahaʻa ma mua o ka nylons kumu nui PA6 a me PA66, no laila ua helu pinepine ʻia ʻo PA610 a me PA612 ma ke ʻano he kaulahao kalapona lōʻihi.

Loaʻa i ka PA6 a me PA66 ka nui o ka hoʻoheheʻe ʻana i ka wai, e hopena i ka hoʻololi kiʻekiʻe o ka nui o ka huahana a me nā waiwai a me nā mahana hana kiʻekiʻe.Hiki i nā nylon kaulahao kalapona lōʻihi ke hoʻopau i ka hemahema o nā kaulahao kalapona pōkole ma muli o nā ʻāpana kaulahao methylene lōʻihi ma waena o nā hui amide pili.Ma waho aʻe o nā waiwai kumu o polyamides, ua hōʻike pū lākou i ka haʻahaʻa haʻahaʻa haʻahaʻa, haʻahaʻa haʻahaʻa wai, kūpaʻa maikaʻi, kūpaʻa kemika maikaʻi loa, nā waiwai uila maikaʻi, ke kūpaʻa ʻana, ka pale ʻana i ka abrasion, ka paʻakikī, ka luhi luhi a me ke kūpaʻa haʻahaʻa haʻahaʻa haʻahaʻa.