Ukwethulwa kwe-polyamid pa6
I-Polyamide, ebizwa ngokuthi i-polyamide pa ngamafuphi, yaziwa kakhulu ngokuthi inayiloni.Iwuhlobo lwepulasitiki ecwebezelayo ye-thermoplastic eyakhiwe yi-polymerization yama-amine kanambambili ne-diacid noma i-lactam.Kunezinhlobo eziningi ze-PA, ngokwenani lama-athomu ekhabhoni ku-monomer ehilelekile ekuphenduleni kwe-polymerization, futhi izinhlobo ezahlukene ze-PA ezinokusebenza okuhlukile zingakhiwa, njenge-PA6, PA66, PA612, PA1010, PA11, PA12, PA46 , i-PA9, i-PA1212, njll. I-PA6 ne-PA66 isetshenziswa kakhulu, ibala u-90% wengqikithi yokukhiqiza.
Izakhiwo ezijwayelekile ze-polyamid pa6
I-Polyamid pa6 ine-polarity, engeyona enobuthi, ayinambitheki futhi kulula ukuyinemibala; Uhlobo lwecrystalline (50 kuya ku-60%), imbudumbudu emhlophe e-milky noma ephuzi ngokukhanyayo; Uketshezi lwe-Newtonian (uketshezi lwe-Newtonian lubhekisela oketshezini lapho ingcindezi ilingana izinga lobunzima);Ukuminyana: 1.02 kuye ku-1.20g/cm³;Ukumuncwa kwamanzi okuphezulu, ukusabela kwe-hydrolysis kuzokwenzeka ku-230 degrees Celsius;Ukumuncwa kwamanzi PA46 > PA6 > PA66 > PA1010 > PA11 > PA12 > PA1212;Izinga elikhulu lokushwabana lokubumba.PP, PE > PA > PS, ABS.Impahla evimbelayo emaphakathi kanye nomgoqo oqinile emoyeni.
Izakhiwo zemishini ye-polyamid pa6
Izakhiwo zemishini ye-polyamid pa6 ngokuvamile zihlobene nokucwebezela: Ukuphakama kwecrystallinity, amandla aphezulu futhi kuqina ukuqina.Ngokuqondene namandla, i-PC > PA66 > PA6 > POM > ABS.Amandla athinteka kakhulu nge-hygroscopicity, izinga lokushisa eliphakeme, i-hygroscopicity ephezulu, i-hygroscopicity ephansi, amandla e-tensile aphansi nezinye izakhiwo.
Ukuqina komthelela kuthinteka kakhulu ekusebenzeni kwe-hygroscopic.Ngokukhuphuka kwezinga lokushisa, ukumuncwa kwamanzi kuyanda futhi ukuqina kuyanda.(Imvamisa, ukuqina akulula esimweni esomile nezinga lokushisa eliphansi, futhi kungenzeka kube nokuqhekeka kwengcindezi ngemikhiqizo yensimbi kanye nokuphuka okuphukayo ku-0℃.
I-Polyamid pa6 inokuzithambisa okuhle kanye nokumelana nokugqokwa okuhle.
Ukumelana okuhle kakhulu nowoyela, isb.uphethiloli.
Amandla okukhathala aphakeme, ngokuvamile angu-20% kuya ku-30% wamandla aqinile.Amandla okukhathala e-PA6 kanye ne-PA66 angafinyelela cishe ku-22MPa, okwesibili ngemuva kwe-POM (35MPa) nangaphezulu kune-PC (10-14MPa).Ukulandelana ngokwamandla okukhathala: POM > PBT, PET > PA66 > PA6 > PC > PSF > PP.
Ubulukhuni obuphezulu, i-PA66: 108 kuya ku-120HRR;I-PA6120HRR.
Ukumelana neCreep Poor: Kungcono kune-PP ne-PE, futhi kubi kune-ABS ne-POM.
Ukumelana nokuqhekeka kwengcindezi okungekuhle: Ukwelashwa kwe-annealing noma umswakama kufanele kwenziwe ngemuva kokucubungula imikhiqizo.
Isikhathi sokuthumela: Feb-21-2022