Ukwakha i-hydroxypropyl methyl cellulose ekhethekile ukugwema ukungena komswakama odongeni, kuzoba inani elifanele lomswakama elingahlala kusimende lodaka ukukhiqiza ukusebenza okuhle emanzini kanye nendima ye-hydroxypropyl methyl cellulose odakeni ingaba ngokulingana ne-viscosity, ukuphakama kwe-viscosity ye-hydroxypropyl methyl cellulose ukugcinwa kwamanzi kuzoba ngcono.
Uma umswakama we-hydroxypropyl methyl cellulose usuphezulu kakhulu, ukugcinwa kwamanzi kwe-hydroxypropyl methyl cellulose kuzokwehla, futhi kuzoholela ngokuqondile ekusebenzeni kahle kwe-hydroxypropyl methyl cellulose.Sijwayele futhi izinto kuzoba lula ukwenza amaphutha, kufanele sihlale sihlanzekile, sizothola imiphumela engalindelekile.
I-viscosity ebonakalayo iyinkomba ebalulekile ye-hydroxypropyl methyl cellulose.Izindlela zokulinganisa ezivamile ukulinganisa i-viscosity ejikelezayo, ukulinganisa kwe-capillary viscosity kanye nesilinganiso sokuwa kwe-viscosity.
Ngaphambilini, i-hydroxypropyl methyl cellulose yayinqunywa ukulinganiswa kwe-capillary viscosity, kusetshenziswa i-viscometer ye-Uhnscher.Isixazululo sokulinganisa ngokuvamile siyisixazululo esinamanzi esingu-2, futhi ifomula ithi: V=Kdt.I-V yi-viscosity ngemizuzwana, i-K ilingana ne-viscometer, D i-density emazingeni okushisa angashintshi, futhi u-T yisikhathi esithathayo ukusuka phezulu kuye phansi ku-viscometer ngemizuzwana.Le ndlela yokusebenza iyinkimbinkimbi kakhulu, uma kukhona izinto ezingancibiliki, kulula ukubangela amaphutha, kunzima ukukhomba ikhwalithi ye-hydroxypropyl methylcellulose.
Inkinga yokwakha i-glue stratification iyinkinga enkulu amakhasimende ahlangabezana nayo.Okokuqala, inkinga yezinto zokusetshenziswa kufanele icatshangelwe ekwakheni i-glue stratification.Isizathu esikhulu sokwakha i-glue stratification ukungahambisani phakathi kwe-polyvinyl alcohol (PVA) ne-hydroxypropyl methylcellulose (HPMC).Isizathu sesibili ukuthi isikhathi sokuxuba asanele;Kukhona futhi ukusebenza kwe-glue yokuqina kwesakhiwo akukuhle.
Ekwakheni amaglue, i-hydroxypropyl methylcellulose (HPMC) esheshayo kufanele isetshenziswe ngoba i-HPMC ihlakazeka emanzini kuphela futhi ayincibiliki ngempela.Cishe imizuzu emi-2, i-viscosity yoketshezi ikhula kancane kancane, yakha i-viscous colloid esobala.
Imikhiqizo encibilikayo eshisayo, emanzini abandayo, ingahlakazwa ngokushesha emanzini ashisayo, inyamalale emanzini ashisayo, lapho izinga lokushisa lehla liye ezingeni lokushisa elithile, i-viscosity ibonakala kancane, kuze kube yilapho kwakheka i-viscous colloid ebonakalayo.I-Hydroxypropyl methylcellulose (HPMC) ku-glue yesakhiwo inani elingeziwe liyanconywa ku-2-4kg.
I-Hydroxypropyl methyl cellulose (HPMC) esakhiweni seglue ukuzinza kwamakhemikhali, isikhutha, umphumela wokugcina amanzi kuhle, futhi akuthintwa ukuguqulwa kwe-PH, i-viscosity esuka ku-100 000 S - 200 000 S ingasetshenziswa.Kodwa ekukhiqizeni akuyona ephakeme i-viscosity ingcono, i-viscosity namandla esibopho ahambisana ngokuphambene, ukuphakama kwe-viscosity, amandla mancane, ngokuvamile i-viscosity engu-100,000S ifanelekile.
Isikhathi sokuthumela: Sep-16-2022