Imikhiqizo

Izingxube ze-polypropylene (PP) ne-polyamide 6 (PA6) ezinama-multiwalled carbon nanotubes (MWNTs) zalungiswa kusetshenziswa amasu ahlukene okucubungula ku-twin-screw micro-compounder.Umthelela wama-MWNTs ekuziphatheni kokukhanya kwekristalu kwesigaba se-PP kanye nesigaba se-PA6 senhlanganisela uye waphenywa ngezifundo zokucwebezelisa okungezona isothermal ngokuhlaziywa okuhlukile kwe-calorimetric.Ngaphezu kwalokho, umphumela wokwengezwa kwe-compatibilizer (PP-g-MA) kanye nokuguqulwa kwama-MWNTs (m-MWNTs) ne-non-covalent organic modifier (Li-salt of 6 amino hexanoic acid, Li-AHA) kufundwe kumongo ekuziphatheni kwekristalu kwesigaba se-PP ne-PA6 ekuhlanganisweni.Ucwaningo lwe-crystallization lubonise ukukhuphuka okuphawulekayo kwezinga lokushisa le-crystallization yenqwaba yesigaba se-PP enhlanganisela phambi kwama-MWNT.Ngaphezu kwalokho, ukwakhiwa kwesakhiwo se-'trans-lamellar crystalline' esihlanganisa i-PA6 'trans-crystalline lamellae' endaweni ye-MWNTs kwenziwe lula esimweni sokuxutshwa okulungiselelwe 'ngephrothokholi 2' uma kuqhathaniswa nezingxube ezihambisanayo ezilungiswe nge-'protocol 1' .Ukuhlaziywa kwe-X-ray diffraction ye-angle ebanzi kubonise ukuba khona kwe-β-polymorph yesigaba se-PP ngenxa yokufakwa kwesigaba se-PA6 ekuxubeni.Ukwengezwa kwama-MWNT ekuhlanganisweni kwenze kube lula ukwakheka kwesakhiwo se-β-crystalline sesigaba se-PP.Ebukhoneni be-m-MWNTs, i-β-fraction ephakeme ibonwe esigabeni se-PP uma kuqhathaniswa nenhlanganisela nama-MWNT ahlanzekile.Ukwengezwa kwe-PP-g-MA kucindezele ukwakheka kwesigaba esingu-β esigabeni se-PP ekuhlanganisweni.Ukuhlaziywa kokuthungwa kwenqwaba ye-X ray kwembula ukuthi ukufakwa kwe-PA6 kanye nama-MWNT acwebile/ashintshiwe kuye kwathonya izinga lokuma kwamaketango e-PP ezindizeni ezithile zekristalu ekuhlanganiseni okuhlukahlukene kwenhlanganisela ye-PP ne-PA6.