Mhedzisiro yemethoxy yemukati uye hydroxypropoxy zvirimo paHPMC

Iyo methoxy yemukati uye hydroxypropoxy zvirimo muHydroxypropyl Methylcellulose (HPMC) inonyanya kupesvedzera zvimiro zvayo uye kuita kwayo mumashandisirwo akasiyana siyana. Heano maitiro ega ega parameter inobata HPMC:

1. Methoxy Content:
   • Iyo methoxy yemukati inoreva dhigirii rekutsiva (DS) yemapoka emethoxy pane cellulose musana. Iyo inosarudza iyo yakazara hydrophobicity yeHPMC.
   • Yakakwira methoxy yemukati inotungamira kune yakakwira kunyungudika kwemvura uye yakadzika gelation tembiricha. HPMCs ine yakakwira methoxy yemukati inonyungudika zviri nyore mumvura inotonhora, ichiita kuti ive yakakodzera maapplication panodiwa kukurumidza hydration.
   • Methoxy yemukati inokanganisa kugona kwekukora kweHPMC. Kazhinji, DS yakakwirira inoguma nepamusoro viscosity pane yakaderera concentrations. Ichi chivakwa chinobatsira mumashandisirwo akadai seanonamira, uko kwakagadziridzwa kuchengetedza kwemvura uye viscosity kunodiwa.
   • Yepamusoro methoxy yemukati inogonawo kukanganisa firimu-kugadzira zvivakwa, kunamatira, uye kuenderana nezvimwe zvinongedzo. Inogona kubatsira mukuumbwa kwemamwe mafirimu anoshanduka uye akabatana mumashandisirwo akadai semajasi uye mapiritsi emishonga.
2. Hydroxypropoxy Content:
   • Iyo hydroxypropoxy yemukati inoreva dhigirii rekutsiva (DS) remapoka ehydroxypropyl pamusana we cellulose. Iyo inosarudza iyo yakazara hydrophilicity uye kuchengetedza mvura zvivakwa zveHPMC.
   • Kuwedzera hydroxypropoxy yemukati inosimudzira kuchengetedza kwemvura kugona kweHPMC. Inovandudza kugona kweHPMC kuchengetedza mvura mukuumbwa, zvichikonzera kushanda kwenguva refu uye kunamatira zviri nani mune simende zvinhu, senge madhaka uye mataira anonamira.
   • Hydroxypropoxy yemukati inokanganisawo tembiricha yegelation uye firimu-kugadzira zvimiro zveHPMC. Yepamusoro DS yemapoka e-hydroxypropyl inodzikisa tembiricha yegelation uye inogona kutungamira mukuvandudzika kwemafirimu kuumbwa uye kunamatira mumachira uye kushandiswa kwemishonga.
   • Huyero yemethoxy yemukati kune hydroxypropoxy zvirimo inokanganisa chiyero chese chehydrophilic uye hydrophobic zvivakwa muHPMC. Nekugadzirisa chiyero ichi, vagadziri vanogona kugadzirisa mashandiro eHPMC kuti asangane nezvinodiwa zvekushandisa, senge viscosity, kuchengetwa kwemvura, uye kuumbwa kwemafirimu.

Muchidimbu, iyo methoxy yemukati uye hydroxypropoxy yemukati yeHPMC inoita basa rakakosha mukuona kunyungudika kwayo, kukora kugona, kuchengetwa kwemvura, tembiricha yegelation, firimu-kugadzira zvivakwa, adhesion, uye kuenderana nezvimwe zvinongedzo. Nekudzora ma parameter aya, vagadziri vanogona kugadzira HPMC ine huwandu hwakasiyana hwezvivakwa zvakakodzera kune akasiyana mashandisirwo mumaindasitiri akadai sekuvaka, mishonga yemishonga, chikafu, zvekuzora, uye nehanya nemunhu.