HydroxypropypropinyL methylcellll (HPMC) ke thepa e sa fetoheng ea polyphobic le ea hydrophobic le hydrophilic Bakeng sa ho utloisisa hydrophobicity le hydrophphilicity ea HPMC, re hloka ho ithuta sebopeho sa eona, thepa le likopo tse tebileng.
Sebopeho sa hydroxypropyL methylcellulose:
HPMC ke mofetoheli oa cellulose, polymer ea tlhaho e fumanehang marakong a lifofane ea lema. Phetoho ea cellulose ea cellulose e kenyelletsa kenyelletso ea hydroxypropyl le lihlopha tsa methyl ka kamoreng ea mokokotlo oa selefounu. Phetoho ena e fetola thepa ea polymer, e kenya thepa e ikhethileng e nang le molemo bakeng sa lits'ebetso tse fapaneng.
Hydrophilicity ea hpmc:
Hydroxy:
HPMC e na le lihlopha tsa hydroxypropyl 'me ke hydrophilic. Lihlopha tsena tsa hydroxyl li na le botsitso bo phahameng ba limolek'hule tsa metsi ka lebaka la hydrojene ea hydrojene.
Sehlopha sa Hydroxypropyl se ka theha melamo ea metsi a nang le limolek'hule tsa metsi, ho etsa HPMC e qhibiliha metsing ka lebaka le itseng.
Methyl:
Ha sehlopha sa methapo se kenya letsoho hydrophobiciomonicoble ea molek'hule, ha e loane le hydrophlicalical ea sehlopha sa hydroxyprofikity.
Sehlopha sa methyl ha se polar, empa ho ba teng ha sehlopha sa hydroxypropyl se khetha semelo sa hydrophilic.
Hydrophobicity of Hpmc:
Methyl:
Lihlopha tsa methyl ho HPMC li ikhethela ho isa hydrophobicity ea eona.
Leha e ne e se joalo ka hydrophobic e le li-polymers tse ling tsa maiketsetso, boteng ba lihlopha tsa methyl bo fokotsa hydrophphilical ea HPMC.
Filimi e theha thepa:
HPMC e tsejoa ka thepa ea eona e etsang lifilimi mme hangata e sebelisoa hampe ka likopo tsa pharmeconetic le litlolo. Hydrophobicity e etsa hore ho thehoa filimi ea ho sireletsa filimi.
Litlaleho tse nang le lintho tse sa tsebeng.
Lits'ebetsong tse ling, HPMC e ka sebelisana le lintho tse sa hlakang ka lebaka la hydrophobicity ea eona e fapaneng. Setulo sena se bohlokoa bakeng sa lits'ebetso tsa ho tsamaisa lithethefatsi indastering ea meriana.
Likopo tsa HPMC:
Setlhare:
HPMC e sebelisoa haholo ka litlhahiso tsa meriana e le binder, filimi e ne e le molimo oa eona. Bokhoni ba eona ba lifilimi ba etsa lithethefatsi tse laoloang.
E sebelisoa ka har'a liforomo tsa litekanyetso tsa molomo tse kang litafole le li-capsules.
Indasteri ea kaho:
Sequloana sa kaho, HPMC e sebelisoa lihlahisoa tsa thibelo ea ho ntlafatsa ho ntlafatsa, boloka metsi le ho tšoarela.
Hydrophphility e thusa ho boloka metsi, ha hydrophobicity e thusa ho ntlafatsa ho tšoarela.
indasteri ea lijo:
HPMC e sebelisoa e le thipa le moemeli oa ho sesa indastering ea lijo. Mofuta oa eona oa hydrophilic o thusa ho theha li-gels tse tsitsitseng mme li laola pono ea lihlahisoa tsa lijo.
litlolo:
Mekhoa ea bohloeki, HPMC e sebelisoa lihlahisoa tse kang litlolo le litlolo ka lebaka la lisebelisoa tsa eona tsa lifilimi le tse tona.
Hydrophphility e tiisa hydrate e ntle ea letlalo.
ha re phethela:
HPMC ke polymer eo ka bobeli ke hydrophilic le hydrophobic. Ho leka-lekana lipakeng tsa hydropypropyl le lihlopha tsa methyl sebopeho sa eona li e fa liphetoho tse ikhethang, li e lumelle hore e be le likopo tse fapaneng. Ho utloisisa thepa ena ho bohlokoa ho sebetsana le HPMC ho sebelisa HPMC tšebelisong e tobileng ea HPMC ho sebelisa sepheo sa metsi le sa motho e sa fetoheng.
Nako ea poso: Dec-15-2023