Ngokuqiniswa kokungcola “kokungcoliswa okumhlophe”, amazwe emhlabeni wonke asungule umyalo oqinile wepulasitiki, ongabola izikhwama zepulasitiki ukuze zihlale ezitolo ezinkulu nasezikhungweni zezitolo.Ukuqaphela ngokucophelela kuzothola ukuthi lezi zikhwama zepulasitiki ezibolayo cishe zonke ziyizo zonke lezi zinhlobonhlobo.I-Pbat+PLA+ST.Ngakho yiziphi izinzuzo ze-PBAT+PLA+ST?
Esinye: isitashi
Isitashi sisatshalaliswa kabanzi ezithelweni noma ezitshalweni, izimpande noma amaqabunga.Kukhona kuze kube ngamakhulu ezigidi zamathani okukhiqizwa kwesitashi minyaka yonke.Ingenye yezinsiza eziningi ezivuselelekayo nezibolayo.Inezinzuzo zemithombo ebanzi namanani aphansi.Kodwa-ke, ngenxa yokuthi isitashi semvelo sinesakhiwo se-microcrystalline kanye nesakhiwo se-granular, asinakho ukusebenza kokucubungula kwe-thermoplastic, futhi sidinga ukuguqulwa sibe isitashi se-armoplastic ukuze sibe nokusebenza kokucubungula kwe-thermoplastic.
Okwesibili: I-PBAT
I-Polycolic acid/phenyl -dysic acid dysol (PBAT) iwuhlobo lwe-polyester ewohlokayo oludonse ukunaka okukhulu.Futhi i-ductility ingabuye yehliswe emanzini kanye ne-carbon dioxide ezimweni zemvelo.
Kodwa-ke, intengo yale nto iphezulu, ekhawulela ukusetshenziswa kwayo emakethe;ngakho-ke, intengo yayo ephansi kanye nesitashi esiwohlokayo kuyisinqumo esingcono kakhulu nge-PBAT.
Ezintathu: I-PLA
I-PLA (i-Polylactic Acid) yaziwa nangokuthi i-polystumin.Inqubo yokukhiqiza i-polystumin iwukungcola, futhi umkhiqizo ungabola, obonakala emvelweni.Ngakho-ke, iyinto efanelekile ye-polymer eluhlaza.eyodwa.
Nokho, kunokushiyeka okuningi ekusetshenzisweni okungokoqobo: I-PLA inokuqina okubi, ukuntula ukunwebeka nokuguquguquka, ukuthungwa okuqinile kanye nokuqina, amandla ancibilikayo aphansi, izinga lekristalu elihamba kancane, njll. Ukukhubazeka okungenhla kukhawulele ukusetshenziswa kwazo ezicini eziningi.
Isakhiwo samakhemikhali se-PLA siqukethe inani elikhulu lamabhondi e-ester, okubangela i-hydrophilicity empofu kanye namazinga okuwohloka adinga ukulawulwa.Ngaphezu kwalokho, intengo ye-PLA iphakeme, okwandisa izindleko zezinto ezingavuthiwe futhi kukhawulele ukukhuthazwa kwayo kwezohwebo.Ngakho-ke, i-PLA ishintshiwe ngenxa yamaphutha amaningi angenhla.
I-PBAT inokwakheka okuthambile, i-ductility eqinile, nomjikelezo wokuwohloka omfushane;I-PLA inokwakheka okucwebezelayo, ukuqina okungekuhle, nomjikelezo omude wokuwohloka.Ngakho-ke, ukuxuba kokubili kuyindlela enhle kakhulu yokuthuthukisa ukusebenza.
Okwesine: Isingeniso sempahla ye-PBAT/PLA
Ukuncibilika kwe-PBAT ne-PLA kuyindlela yokuguqula umzimba.Iphuzu eliyinhloko liwukufuna ukuhambisana okuhle.Kodwa-ke, ukunyibilika kwe-PBAT ne-PLA kukhulu, ngakho ukuhambisana akulungile, futhi kunzima ukuhlanganisa ngokufanayo.
Ukuthuthukisa ukuhambisana kwe-PBAT ne-PLA kuyinkinga enkulu.Isiqukathi esisodwa noma ngaphezulu sidinga ukungezwa ekuxubeni ukuze kuthuthukiswe ukunamathela kwesixhumi esibonakalayo se-PBAT ne-PLA.Iziqukathi ezivame ukusetshenziswa yilezi: plasticizers, reactivity, reaction, and hard polymer polymer.
I-PLA ne-PBAT zinokusebenza okuhambisanayo, ngakho-ke kufanele kube nesilinganiso esingcono kakhulu sekhwalithi yokusebenza okuphelele.
1. Ingxenye ye-PLA ikhuphukela ku-40% kumanodi.Ukuqina okunwebekayo kwento kuyancishiswa kuqala bese kwanda.
2. Uma okuqukethwe kwe-PLA kungaphezulu kuka-70%, okokusebenza kushwabene kakhulu futhi akukwazi ukufuthelwa kufilimu.Ngakho-ke, ingxenye ye-PLA ku-PBAT kufanele igcinwe cishe i-1: 1 ngokuya ngesimo sesengezo.
【Ukusebenza okwehlisiwe】
Impendulo yokuqala yokonakaliswa kwezinto ezibonakalayo ukuthi impendulo ye-hydrolyzed yama-molecule amanzi angena.Uma kuyimpahla ehlukile ye-PBAT, kunzima ukuyehlisa ngenxa yokuthi ukwakheka kwamangqamuzana kunamabhondi e-ester aqinile.Ama-molecule e-PLA asengozini yokuwohloka kwangaphakathi ngamanzi.Ngakho-ke, ukuphakama kokuqukethwe kwe-PLA, ukuwohloka kwezinto ezibonakalayo ngokushesha.
Isikhathi sokuthumela: Sep-08-2022