HPMC kapa hydroxypropyl methylcellulose ke ntho e sebetsang ka mefuta e mengata e sebelisoang liindastering tse fapaneng ho kenyeletsa le meriana, litlolo le lijo.E sebelisoa haholo e le motenya le emulsifier, 'me viscosity ea eona e fetoha ho latela mocheso oo e pepesehetseng ho oona.Sehloohong sena, re tla shebana le kamano pakeng tsa viscosity le mocheso ho HPMC.
Viscosity e hlalosoa e le tekanyo ea khanyetso ea mokelikeli ho phalla.HPMC ke ntho e sa tsitsang eo tekanyo ea eona ea ho hanyetsa e itšetlehileng ka lintlha tse fapaneng, ho kenyeletsoa mocheso.Ho utloisisa kamano pakeng tsa viscosity le mocheso ho HPMC, re lokela ho qala ka ho tseba hore na ntho e thehoa joang le hore na e entsoe ka eng.
HPMC e nkiloe ho selulose, e leng polima ea tlhaho ea limela.Ho hlahisa HPMC, selulose e hloka ho fetoloa ka lik'hemik'hale ka propylene oxide le methyl chloride.Phetoho ena e etsa hore ho thehoe lihlopha tsa hydroxypropyl le methyl ether ka har'a ketane ea cellulose.Sephetho ke ntho e tiileng e ka qhibilihang ka metsing le ka har'a metsoako ea lintho tse phelang 'me e sebelisoa mefuteng e fapaneng ea ts'ebeliso, ho kenyelletsa le ho roala matlapa le ho tiisa lijo, har'a tse ling.
Viscosity ea HPMC e itšetlehile ka bongata ba ntho le mocheso oo e hlahisoang ho oona.Ka kakaretso, viscosity ea HPMC e fokotseha ka mahloriso a ntseng a eketseha.Sena se bolela hore likhakanyo tse phahameng tsa HPMC li baka li-viscosity tse tlase le ka tsela e fapaneng.
Leha ho le joalo, kamano e fapaneng pakeng tsa viscosity le mocheso e thata haholoanyane.Joalokaha ho boletsoe pejana, viscosity ea HPMC e eketseha ka mocheso o fokotsehang.Sena se bolela hore ha HPMC e le tlas'a mocheso o tlase, matla a eona a ho phalla a fokotseha 'me e fetoha e hlakileng haholoanyane.Ka mokhoa o ts'oanang, ha HPMC e le tlas'a mocheso o phahameng, bokhoni ba eona ba ho phalla boa eketseha 'me viscosity ea eona ea fokotseha.
Ho na le lintlha tse fapaneng tse amang kamano pakeng tsa mocheso le viscosity ho HPMC.Mohlala, metsoako e meng e teng ka har'a mokelikeli e ka ama viscosity, joalo ka pH ea mokelikeli.Leha ho le joalo, ka kakaretso, ho na le kamano e fapaneng pakeng tsa viscosity le mocheso ho HPMC ka lebaka la phello ea mocheso ho kopanya ha hydrogen le limolek'hule tsa liketane tsa cellulose ho HPMC.
Ha HPMC e le tlas'a mocheso o tlase, liketane tsa cellulose li fetoha tse thata haholoanyane, e leng se lebisang ho eketseha ha hydrogen bonding.Litlamo tsena tsa haedrojene li etsa hore khanyetso ea ntho e phalle, ka tsela eo e eketsa viscosity ea eona.Ka lehlakoreng le leng, ha li-HPMC li ne li le tlas'a mocheso o phahameng, liketane tsa cellulose li ile tsa fetoha habonolo, tse ileng tsa fella ka ho fokotseha ha li-hydrogen bond.Sena se fokotsa khanyetso ea ntho ho phalla, ho fella ka ho fokotseha ha viscosity.
Ke habohlokoa ho hlokomela hore le hoja hangata ho na le kamano e fapaneng pakeng tsa viscosity le mocheso oa HPMC, ha ho joalo kamehla ho mefuta eohle ea HPMC.Kamano e nepahetseng lipakeng tsa viscosity le mocheso e ka fapana ho latela ts'ebetso ea tlhahiso le sehlopha se ikhethileng sa HPMC se sebelisitsoeng.
HPMC ke ntho multifunctional ho pharaletseng sebelisoa liindasteri tse sa tšoaneng bakeng sa thickening le emulsifying thepa ea eona.The viscosity ea HPMC e itšetlehile ka lintlha tse 'maloa, ho kenyelletsa le mahloriso a ntho le mocheso oo e hlahisoang ho oona.Ka kakaretso, viscosity ea HPMC e fapane ka tsela e fapaneng le mocheso, ho bolelang hore ha mocheso o fokotseha, viscosity ea eketseha.Sena se bakoa ke phello ea mocheso ho maqhama a haedrojene le litšebelisano tsa limolek'hule tsa liketane tsa cellulose ka har'a HPMC.
Nako ea poso: Sep-08-2023