Abstract:PA612 i polymer material, zita rakazara i polyamide 612, inozivikanwawo senaironi 612. iyo semi-crystalline engineering mapurasitiki, ane unhu hwakanaka hwemuviri uye kugadzikana kwemakemikari.Mumunda weinjiniya, PA612 inoshandiswa zvakanyanya mukugadzira zvikamu uye zvikamu mumotokari, zvemagetsi, muchina uye mamwe minda.

PA612 imhando yepolymer, zita rakazara i polyamide 612, inozivikanwawo senaironi 612. iri semi-crystalline engineering mapurasitiki, ane zvinhu zvakanakisa zvemuviri uye kugadzikana kwemakemikari.
Iyo semi-crystalline engineering plastiki ine yakanakisa zvimiro zvemuviri uye kugadzikana kwemakemikari.Mumunda weinjiniya, PA612 inoshandiswa zvakanyanya mukugadzira zvikamu uye zvikamu mumotokari, zvemagetsi, muchina uye mamwe minda.

Iyo molecular chimiro chePA612 inoumbwa ne styrene monomer kuburikidza nemahara radical polymerisation.Munguva yepolymerisation process, styrene monomer inotanga kupinda yemahara radical yekuwedzera reaction kuti igadzire styrene radicals, uyezve aya radicals anoenderera mberi nekuita cheni yekukura kuita kuti pakupedzisira agadzire polymer cheni.Ichi chimiro che molecular chinopa PA612 yakanakisa mechini zvivakwa uye kupfeka kuramba.

Pakunyungudika kwePA612 itembiricha panochinja zvinhu kubva pakasimba kuenda pamvura.Kune PA612, nzvimbo yekunyunguduka inowanzova pakati pe295-315 madhigirii Celsius.Nzvimbo inonyungudika mune iyi renji inoita PA612 ipurasitiki yeinjiniya ine yakakwira kugadzirisa tembiricha zvinodiwa.Mumashandisirwo anoshanda, iyo yekunyungudika nzvimbo yePA612 inoda kutariswa zvinoenderana neyakagadzika mamiriro ekugadzirisa uye zvishandiso.

Iyo yakanyunguduka yePA612 inobatwa nemhando dzakasiyana siyana, kusanganisira iyo molecular uremu hwezvinhu, dhigirii rekristaro, saizi yezviyo uye zvichingodaro.Kazhinji, kukwira kwehuremu hwema molecular, ndiko kuwedzera kwenzvimbo yekunyungudika;iyo yakakwirira yekristallinity, iyo yakaderera nzvimbo yekunyungudika;iyo diki saizi yezviyo, inokwidza nzvimbo yekunyungudika.Naizvozvo, iyo yakanyungudika nzvimbo yePA612 inogona kudzorwa nekugadzirisa iyo molecular uremu, crystallinity uye saizi yezviyo uye mamwe ma parameter.

Mumashandisirwo anoshanda, iyo yakanyungudika nzvimbo yePA612 yakakosha paramende.Chekutanga, inotaridza iyo yekugadzirisa tembiricha inodiwa yePA612.Kana iyo yakanyunguduka yakanyanya kuderera, inogona kutungamirira mukunyunguduka kana kuparara kwezvinhu panguva yekugadzirisa;kana nzvimbo yekunyungudika yakanyanyisa, inogona kukanganisa kushanda kwekugadzirisa uye hupenyu hwemidziyo.Kechipiri, iyo yekunyungudika nzvimbo inokanganisawo kukodzera kwePA612 mumamiriro akasiyana ekushandisa.Semuenzaniso, zvikamu zvinoshandiswa munzvimbo dzepamusoro-tembiricha dzinoda kuve nekunyungudika kwepamusoro kuti ive nechokwadi chekugadzikana uye kuvimbika pakupisa kwakanyanya.

Pamusoro pekunyungudika kwayo, PA612 ine zvimwe zvakakosha zvemuviri nemakemikari zvimiro.Semuenzaniso, inoratidzirwa nehukuru hwesimba, kuoma kwepamusoro, kunaka kwebrasion uye kushorwa kwekuora.Pamusoro pezvo, PA612 ine good processability uye plasticity, uye inogona kugadzirwa nekugadzirwa nenzira dzakasiyana siyana, senge kuburikidza nejekiseni rekugadzira uye extrusion moulding.

Mukupedzisa, PA612 ndeye polymer zvinhu zvine mashandiro akanaka, uye nzvimbo yekunyunguduka kwayo inotangira pa295-315 degrees Celsius.Kudzora kwemhando iyi kwakakosha kuve nechokwadi chekugadzirisa mashandiro uye mashandisiro ePA612.Kudzora kunobudirira kwenzvimbo yakanyunguduka yePA612 inogona kuwanikwa nekusarudza zvine musoro nekugadzirisa maparamendi akadai semamorekuru uremu, crystallinity uye saizi yezviyo zvePA612, kuitira kuti isangane nezvinodiwa zvakasiyana-siyana zvekushandisa.