Polyamide (PA) inowanzo zivikanwa senaironi, uye refu kabhoni ketani nylon inoreva mhando dzenaironi dzine gumi kana anopfuura mapoka emethylene pakati pepedyo amide zvisungo muketani huru ye macromolecule, senge PA11, PA12, PA1010, PA1212, PA1012, nezvimwe. .

Pakati pavo, PA610 uye PA612 maviri aliphatic polyamides, kusarudzwa kwema-chain-chain diamines uye hexamethylene diamine condensation, kunyatsotaura, haisati yasangana netsanangudzo iri pamusoro, nekuda kwehurefu hwe diacid kupfuura 10 carbon, nguva yakareba kwenguva yakareba. yehafu ndeyekusangana netsanangudzo yeakareba kabhoni cheni naironi, nepo kureba kwediamine chete 6 kabhoni, zvichikonzera kupisa tembiricha kuramba uye michina zvinhu uye zvimwe zvivakwa zviri nani pane refu kabhoni cheni naironi, yakaderera zvishoma pane Iyo general chinangwa nylons PA6 uye PA66, saka PA610 uye PA612 anowanzo kurondedzerwa seakareba kabhoni cheni naironi.

PA6 nePA66 vane mwero wemvura wakakwira, zvichikonzera kusiyana kwepamusoro muhukuru hwechigadzirwa uye zvivakwa uye tembiricha yepamusoro yekugadzirisa.Marefu kabhoni cheni manylon anogona kugadzirisa kushomeka kwemapfupi kabhoni cheni nekuda kweakareba methylene cheni zvikamu pakati pemapoka eamide ari pedyo.Pamusoro pezvinhu zvekutanga zvepolyamides, zvakare anoratidza kushomeka kwehukama, kunyura kwemvura, kugadzikana kwakanaka, kugadzikana kwemakemikari, kunaka kwemagetsi zvivakwa, corrosion resistance, abrasion resistance, kuoma, kuneta kuramba uye kudzikamisa tembiricha kuramba.