Ngokuvamile, i-viscosity yei-hydroxypropyl methylcelluloseiphakeme, kodwa futhi kuya ngezinga lokushintshwa kanye nezinga elimaphakathi lokushintshwa.IHydroxypropyl methyli-celluloseiyi-ether engeyona i-ionic cellulose ebukeka njengempushana emhlophe futhi ayinaphunga futhi ayinambitheki, encibilika emanzini nasezincibilikilweni eziningi eziphila endaweni epholile nezilinganiso ezifanele ze-ethanol/amanzi, i-propanol/amanzi, i-dichloroethane, njll., engancibiliki ku-acetone ne-ethanol ephelele, ikhukhumala ibe i-colloid ecacile noma eguqubele kancane emanzini abandayo.Isixazululo esinamanzi sinomsebenzi ongaphezulu, sakha ifilimu elincanyana ngemva kokomiswa, sishintshashintsha sisuka kusol siye kujeli ngokulandelana lapho sishisa futhi sipholiswa.Ukucaca okuphezulu nokusebenza okuzinzile.
IHydroxypropyl methylcellulose inendawo ye-gelation eshisayo.Ngemuva kokuthi isixazululo esinamanzi somkhiqizo sishisiwe, sakha ijeli futhi sincibilike, futhi sihlakazeke ngemuva kokupholisa.Izinga lokushisa le-gelation lokucaciswa okuhlukile lihlukile.I-Solubility iyahlukahluka ngokuya nge-viscosity.I-viscosity ephansi, i-solubility enkulu.Izakhiwo ze-hydroxypropyl methylcellulose ezinemininingwane ehlukene zihlukile.Ukuqedwa kwe-hydroxypropyl methylcellulose emanzini akuthintwa inani le-pH.
Izici: Inezici zekhono lokuqina, ukukhipha usawoti, ukuzinza kwe-PH, ukugcinwa kwamanzi, ukuzinza kwe-dimensional, impahla enhle kakhulu yokwenza ifilimu, ububanzi obuningi bokumelana nama-enzyme, ukuhlakazeka nokuhlangana.
Iukugcinwa kwamanziyemikhiqizo ye-hydroxypropyl methylcellulose ivamise ukuthintwa yizici ezilandelayo:
1. Ukufana kwe-hydroxypropyl methylcellulose
I-hydroxypropyl methylcellulose, i-methoxyl ne-hydroxypropoxyl esabela ngendlela efanayo isatshalaliswa ngokulinganayo, futhi izinga lokugcinwa kwamanzi liphezulu.
2. I-Hydroxypropyl methylcellulose izinga lokushisa elishisayo lejeli
Lapho izinga lokushisa lejeli elishisayo liphakeme, izinga lokugcinwa kwamanzi liphakeme;Uma kungenjalo, izinga lokugcinwa kwamanzi liyancipha.
3. I-Viscosity ye-hydroxypropyl methylcellulose
Lapho i-viscosity ye-hydroxypropyl methylcellulose ikhula, izinga lokugcinwa kwamanzi liyanda;lapho i-viscosity ifinyelela ezingeni elithile, ukwanda kwezinga lokugcinwa kwamanzi kuvame ukuba mnene.
4. Inani le-hydroxypropyl methylcellulose elengeziwe
Uma likhulu inani le-hydroxypropyl methylcellulose elingeziwe, izinga lokugcinwa kwamanzi likhuphuka futhi kuba ngcono umphumela wokugcina amanzi.Ebangeni lokuhlanganisa okungu-0.25-0.6%, izinga lokugcinwa kwamanzi likhula ngokushesha ngokunyuka kwenani elingeziwe;lapho inani elingeziwe likhuphuka, inkambiso yokwenyuka kwezinga lokugcina amanzi iyancipha.
Isikhathi sokuthumela: Aug-28-2023