Hauv kev lag luam kws tshuaj, hypromellose (HPMC, MICOTOCEL ™) tuaj yeem siv los ua cov muab tub lim, cov ntsiav tshuaj txheej polymer thiab tus key zam kom paub tswj cov tshuaj tso tawm. Hypromellose tau siv nyob rau hauv cov ntsiav tshuaj rau ntau tshaj 60 xyoo thiab yog tus key expipient dav siv hauv hydrophilic gel Matrix ntsiav tshuaj.
Muaj ntau lub tuam txhab uas siv hluav taws xob siv hypromellose rau kev tawm tshuaj yeeb, tshwj xeeb tshaj yog nyob rau hauv hydrophilic gel Matrix ntsiav tshuaj ua qauv. Thaum nws los txog rau cov khoom lag luam hypromellose, tej zaum koj yuav xav tsis tau kev xaiv - tshwj xeeb yog koj tab tom nrhiav rau ib yam ntawv lo rau koj cov neeg siv khoom. Hauv phau ntawv qhia no, peb yuav tham txog cov khoom tseem ceeb uas koj yuav tsum paub txog hypromellose.
Dab tsi yog hypromellose?
Hypromellose, tseem hu uaHydroxyPropyyl methylcellulose (HPMC), yog cov polymer siv los ua cov tshuaj uas muaj kev zam kom tswj tau cov tshuaj tso tawm los ntawm cov tshuaj Hydrophilic Gel Matrix ntsiav tshuaj.
Hypromellose yog cov khoom siv hluavtaws ua ntu hluav taws xob muab tau los ntawm cellulose, feem ntau muaj qoob loo ntau tshaj plaws hauv xwm. Qee qhov ntawm nws cov khoom muaj xws li:
Cov. soluble hauv dej txias
Cov. Insoluble hauv dej kub
Cov. Kev tsi muaj
Cov. Xaiv cov soluble hauv cov kuab tshuaj organic
Cov. Reversibility, thermal gel Khoom
Cov. Kev khiav dej thiab viscamers nyob ywj pheej ntawm ph
Cov. Surfactant
Cov. tsis-lom
Cov. Saj thiab tsw yog me
Cov. Enzyme tsis kam
Cov. Ph (2-13) Ntau Yam Ruaj Ntseg
Cov. Nws tuaj yeem raug siv ua cov thickener, emulsifier, binder, tus nqi tswj hwm, zaj duab xis yav tas los
Dab tsi yog hydrophilic gel Matrix ntsiav tshuaj?
Hydrophilic Gel Matrix ntsiav tshuaj yog qhov siv tshuaj ntau npaum li cas uas tuaj yeem tswj cov tshuaj tso tawm los ntawm cov ntsiav tshuaj dhau lub sijhawm ntev.
Hydrophilic Gel Matrix Ntsiav Tshuaj:
Cov. kuj yooj yim
Cov. Yuav tsum muaj tsuas yog cov khoom siv Ntsiav tshuaj Compression
Cov. Tiv thaiv cov tshuaj pov tseg
Cov. Tsis cuam tshuam los ntawm ntsiav tshuaj hardness lossis compression quab yuam
Cov. Kev tso yeeb tshuaj tuaj yeem hloov kho raws li tus nqi ntawm kev ua kom zoo thiab cov polymers
Kev siv ntawm hypromellose hauv hydroxilic gel-matrix ntsiav tshuaj tau txais kev cai lij choj kev cai lij choj, thiab hypromellose siv tau yooj yim, uas tau qhia los ntawm ntau cov kev tshawb fawb. Hypromellose tau dhau los ua qhov kev xaiv zoo tshaj plaws rau cov tuam txhab kev lag luam los tsim kho thiab tsim cov ntsiav tshuaj tso tawm.
Yam cuam tshuam rau kev tso yeeb tshuaj los ntawm matrix ntsiav tshuaj:
Thaum tsim qauv txuas ntxiv-tso tawm cov ntsiav tshuaj ntxiv, muaj ob yam tseem ceeb los txiav txim siab: kev ua qauv thiab kev ua haujlwm. Tseem muaj cov sub-yam los txiav txim siab thaum txiav txim siab cov qauv thiab tso tawm profile ntawm cov khoom siv tshuaj kawg.
Cov Qauv:
Qhov tseem ceeb tshaj plaws los txiav txim siab rau kev txhim kho thaum ntxov:
1. Polymer (hloov hom, viscosity, tus nqi thiab particle loj)
2. Tshuaj (Tshuaj (particle loj thiab solubility)
3. Bulking cov neeg sawv cev (solubility thiab os)
4. Lwm yam kev zam (stabilizers thiab buffers)
Cov khoom siv tes:
Cov xwm txheej no muaj feem xyuam rau kev tsim cov tshuaj:
1. Cov Qauv Ntau Lawm
2. Ntsiav tshuaj loj thiab cov duab
3. Ntsiav tshuaj
4. Ib puag ncig
5. Zaj duab xis txheej
Yuav ua li cas pob zeb ua haujlwm:
Hydrophilic gel matrix ntsiav tshuaj tuaj yeem tswj cov tshuaj tso tawm los ntawm cov khoom xyaw gel, suav nrog cov khoom siv muaj zog ntawm cov roj ntsha (soluble cov khoom xyaw Siv hypromellose, cov tuam txhab siv hluav taws xob tuaj yeem siv cov ntsiav tshuaj hydrix siv cov tshuaj tso tawm, ua kom muaj kev zam txim rau cov tshuaj rau cov neeg mob. Txoj kev ntawm kev noj tshuaj ib zaug yog ntawm chav kawm zoo dua li kev paub ntawm kev noj ntau yam ntsiav tshuaj ntau zaus ib hnub.
Lub Sijhawm Post: Apr-25-2024