izindaba

I-Melt flow index yokunqunywa kwe-polyethylene ye-low-density esekelwe isisindo samangqamuzana kanye nezakhiwo ze-branching

Inani le-MFI elicashunwe kumadathabhethi amaningi libhekisela enanini le-polymer elikhishwa ngomsele owaziwayo (die) futhi livezwe njengenani kumaminithi angu-g/10 noma nge-Melt Volume Rate ngo-cm3 /10mins .

I-polyethylene ephansi (i-LDPE) ibonakala ngokusekelwe ku-Melt Flow Index (MFI) yabo.I-MFI ye-LDPE ihlotshaniswa nesisindo sayo samangqamuzana (Mw).Uhlolojikelele lwezifundo zokumodela kuma-reactors e-LDPE atholakala ezincwadini ezivulekile kukhombisa ukungafani okukhulu phakathi kwabacwaningi bokuhlobana kwe-MFI-Mw, ngakho-ke ucwaningo lokukhiqiza ukuhlobana okuthembekile kudingeka lwenziwe.Lolu cwaningo luqoqa idatha ehlukahlukene yokuhlola neyemboni yamabanga ahlukene omkhiqizo we-LDPE.Ukuxhumana okunamandla phakathi kwe-MFI kanye ne-Mw kuyathuthukiswa futhi ukuhlaziywa kwe-MFI kanye nobudlelwane be-Mw kuyabhekwa.Iphesenti lephutha phakathi kokubikezela kwemodeli nedatha yezimboni liyahluka ukusuka ku-0.1% ukuya ku-2.4% okungabhekwa njengokuncane.Imodeli engaqondile etholiwe ikhombisa ikhono lesibalo esithuthukisiwe ukuchaza ukuhluka kwedatha yezimboni, ngaleyo ndlela ivumela ukuzethemba okukhulu ekubikezelweni kwe-MFI ye-LDPE.