I-Abstract:I-PA612 iyimpahla ye-polymer, igama eligcwele i-polyamide 612, eyaziwa nangokuthi inayiloni 612. iyipulasitiki yobunjiniyela obuyi-semi-crystalline, enezakhiwo ezinhle kakhulu ezibonakalayo kanye nokuzinza kwamakhemikhali.Emkhakheni wobunjiniyela, i-PA612 isetshenziswa kabanzi ekwenzeni izingxenye nezingxenye zezimoto, zikagesi, zemishini nakweminye imikhakha.

I-PA612 iwumsebenzi we-polymer, igama eligcwele i-polyamide 612, eyaziwa nangokuthi inayiloni 612. iyipulasitiki yobunjiniyela obuyi-semi-crystalline, enezakhiwo ezinhle kakhulu zomzimba nokuzinza kwamakhemikhali.
Ipulasitiki yobunjiniyela be-semi-crystalline enezakhiwo ezinhle kakhulu zomzimba kanye nokuzinza kwamakhemikhali.Emkhakheni wobunjiniyela, i-PA612 isetshenziswa kabanzi ekwenzeni izingxenye nezingxenye zezimoto, zikagesi, zemishini nakweminye imikhakha.

Isakhiwo samangqamuzana e-PA612 sakhiwe i-styrene monomer ngokusebenzisa i-polymerization yamahhala.Ngesikhathi senqubo ye-polymerisation, i-styrene monomer iqala ngokusabela ngokungezwa kwe-radical yamahhala ukuze yakhe ama-radicals e-styrene, bese lawa ma-radicals eqhubeka nokusabela kokukhula kweketanga ukuze ekugcineni akhe iketango le-polymer.Lesi sakhiwo samangqamuzana sinikeza i-PA612 izakhiwo ezinhle kakhulu zemishini kanye nokumelana nokugqoka.

Iphuzu lokuncibilika le-PA612 izinga lokushisa lapho izinto zishintsha ukusuka kokuqinile kuye oketshezini.Ku-PA612, indawo yokuncibilika ivamise ukuba phakathi kuka-295-315 degrees Celsius.Iphuzu elincibilikayo kulolu hlu lenza i-PA612 ipulasitiki yobunjiniyela enezidingo zokushisa eziphakeme zokucubungula.Ekusetshenzisweni okungokoqobo, ibanga lephoyinti elincibilikayo le-PA612 lidinga ukunqunywa ngokuya ngezimo ezithile zokucubungula kanye nemishini.

Iphuzu lokuncibilika le-PA612 lithinteka yizici ezihlukahlukene, kuhlanganise nesisindo se-molecular of material, izinga le-crystallinity, usayizi wokusanhlamvu nokunye.Ngokuvamile, ukuphakama kwesisindo samangqamuzana, kuyanda izinga lokuncibilika;lapho i-crystallinity iphakeme, iyancipha indawo yokuncibilika;uma usayizi wokusanhlamvu ube mncane, iphoyinti lokuncibilika liyanda.Ngakho-ke, uhla lokuncibilika lwe-PA612 lungalawulwa ngokulungisa isisindo salo samangqamuzana, ubukristalu nosayizi wokusanhlamvu neminye imingcele.

Ezinhlelweni ezisebenzayo, ibanga lephoyinti lokuncibilika le-PA612 liyipharamitha ebaluleke kakhulu.Okokuqala, inquma imfuneko yokushisa yokucubungula ye-PA612.Uma indawo yokuncibilika iphansi kakhulu, ingase iholele ekuncibilikeni noma ukubola kwezinto ngesikhathi sokucubungula;uma iphoyinti lokuncibilika liphezulu kakhulu, lingathinta ukusebenza kahle kokucubungula kanye nempilo yemishini.Okwesibili, ibanga lephoyinti lokuncibilika liphinde lithinte ukufaneleka kwe-PA612 ezimeni ezihlukene zohlelo lokusebenza.Isibonelo, izingxenye ezisetshenziswa ezindaweni ezinokushisa okuphezulu zidinga ukuba nendawo ephezulu yokuncibilika ukuze kuqinisekiswe ukuzinza nokuthembeka kwazo emazingeni okushisa aphezulu.

Ngaphezu kwebanga layo lokuncibilika, i-PA612 inezinye izinto ezibalulekile zomzimba namakhemikhali.Isibonelo, ibonakala ngamandla amakhulu, ukuqina okuphezulu, ukuhuzuka okuhle nokumelana nokugqwala.Ngaphezu kwalokho, i-PA612 inokucutshungulwa okuhle kanye nepulasitiki, futhi ingacutshungulwa futhi yenziwe ngezindlela ezahlukahlukene, njengokubunjwa komjovo nokubunjwa kwe-extrusion.

Sengiphetha, i-PA612 iyimpahla ye-polymer esebenza kahle kakhulu, futhi indawo yayo yokuncibilika isukela ku-295-315 degrees Celsius.Ukulawulwa kwalolu banga kubalulekile ukuze kuqinisekiswe ukusebenza kokucubungula kanye nomthelela wokusetshenziswa kwe-PA612.Ukulawulwa okuphumelelayo kohlu lwamaphuzu okuncibilika lwe-PA612 kungafinyelelwa ngokukhetha ngokunengqondo nokulungisa imingcele efana nesisindo samangqamuzana, ubukristalu nosayizi wokusanhlamvu we-PA612, ukuze kuhlangatshezwane nezidingo zezimo ezihlukene zohlelo lokusebenza.