Hydroxypropyl methylcellulose (HPMC) ke thepa ea bohlokoa e nang le mefuta e mengata ea lits'ebetso indastering ea meriana hammoho le liindastering tse ling tse kang lijo, litlolo le kaho. Tlhoko ea HPMC e ntse e hola butle ho theosa le lilemo ka lebaka la litšobotsi tsa eona tse ikhethang tse kang ho teteana, ho tlama, ho etsa filimi le ho boloka metsi. Sehloohong sena, re tla tšohla mokhoa oa tlhahiso ea alkaline leaching oa hydroxypropyl methylcellulose (HPMC).
Mokhoa oa tlhahiso ea alkali leaching oa hydroxypropyl methylcellulose (HPMC) ke mokhoa oo cellulose e arabelang ka oona le propylene oxide le methyl chloride ha ho na le alkali. Ts'ebetso ena e etsahala tlas'a maemo a laoloang ke mocheso, khatello le nako ho hlahisa lihlahisoa tsa HPMC tsa boleng bo holimo.
Mohato wa pele wa ho hlahisa HPMC o sebedisa mokgwa wa tlhahiso ya alkaline leaching ke ho lokisa thepa e tala ya cellulose. Cellulose e hlwekiswa pele ka ho tlosa ditshila dife kapa dife ebe e fetolwa ho ba alkali cellulose ka kalafo ka alkali e kang sodium hydroxide. Mohato ona o bohlokwa hobane o eketsa tshebetso ya cellulose ka di-reagent tse sebediswang mehatong e latelang.
Alkali cellulose e phekoloa ka motsoako oa propylene oxide le methyl chloride tlas'a mocheso le khatello e laoloang. Karabelo pakeng tsa alkali cellulose le reagent e fella ka ho thehoa ha sehlahisoa, e leng motsoako oa hydroxypropyl methylcellulose le lihlahisoa tse ling tse setseng.
Motsoako o hlatsuoa, oa hloekisoa le ho sefshoa ho tlosa litšila tse kang li-reagent tse sa arajoang le lihlahisoa tse ling. Tharollo e hlahang e kopanngoa ka ho fetoha mouoane ho fumana sehlahisoa sa HPMC se hloekileng haholo.
Mokhoa oa tlhahiso ea alkali leaching oa hydroxypropyl methylcellulose (HPMC) o na le melemo e mengata ha o bapisoa le mekhoa e meng ea tlhahiso joalo ka etherification. E 'ngoe ea melemo ke hore ke ts'ebetso e mosa haholoanyane tikolohong. Ho fapana le mekhoa e meng, mokhoa oa tlhahiso ea alkali leaching ha o sebelise li-solvents tsa halogen tse kotsi tikolohong le bophelong ba batho.
Molemo o mong oa mokhoa ona ke tlhahiso ea lihlahisoa tsa HPMC tse hloekileng haholo. Maemo a karabelo a laoloang a netefatsa hore sehlahisoa sa ho qetela se na le boleng bo tsitsitseng 'me se loketse lits'ebetso tse fapaneng.
Tšebeliso ea HPMC indastering ea meriana e bohlokoa bakeng sa tlhahiso ea matlapa, li-capsule le mefuta e meng ea litekanyetso. HPMC e ka sebelisoa e le sehokelo, se arolang, se koahelang, jj. Tšebeliso ea HPMC lits'ebetsong tsena e netefatsa hore mokhoa oa tekanyo ke oa boleng bo holimo 'me o fihlela maemo a hlokahalang.
HPMC e boetse e sebelisoa e le setenya, se kopanyang le se tsitsisang indastering ea lijo. Tšebeliso ea HPMC lihlahisoa tsa lijo e netefatsa sebopeho se tsitsitseng, ho teteana le boleng.
Indastering ea kaho, HPMC e sebelisoa e le sehlomathiso sa samente ho ntlafatsa bokhoni ba ho sebetsa, ho boloka metsi le thepa ea ho kopanya samente. Tšebeliso ea HPMC e netefatsa hore lihlahisoa tsa kaho li boleng bo holimo 'me li fihlela maemo a hlokahalang.
Ka bokhutšoanyane, mokhoa oa tlhahiso ea alkali leaching oa hydroxypropyl methylcellulose (HPMC) ke mokhoa oa ho hlahisa lihlahisoa tsa HPMC tsa boleng bo holimo 'me o sebelisoa haholo liindastering tse fapaneng tse kang meriana, lijo le kaho. Tšebeliso ea HPMC lits'ebetsong tsena e netefatsa hore sehlahisoa se boleng bo holimo 'me se fihlela maemo a hlokahalang. Mokhoa ona oa tlhahiso o boetse o mosa tikolohong 'me o hlahisa sehlahisoa sa HPMC se hloekileng haholo.
Nako ea poso: Loetse-15-2023