Dab tsi yog viscosity ntawm hydroxypropyl methylulose?

HydroxyPropyyl methylcellueculose (HPMC) yog cov neeg sawv cev, tus neeg sawv cev ntawm cov khoom siv, cov khoom noj uas yav dhau los ua kom zoo nkauj thiab cov khoom lag luam kom zoo nkauj. Nws viscosity yog ib qho tseem ceeb ntawm cov tsis tseem ceeb cuam tshuam nws kev ua tau zoo, uas feem ntau yuav txawv raws li kev daws teeb meem, ntsuas kub thiab molecular qhov hnyav ntawm HPMC.

Lub viscosity nqi ntawm HPMC yog hais txog qhov kev daws teeb meem nyob rau qee yam, feem ntau tau qhia hauv Mpa As (Millsatasas). Hauv cov qauv viscosposity ntawm HPMC, cov kev qhia ntau zaus yog 2% lossis 4% kev daws teeb meem, thiab ntsuas ntsuas kub yog feem ntau 20 ° C. Nyob ntawm cov khoom lag luam thiab cov khoom lag luam, lub viscosity ntawm HPMC tuaj yeem los ntawm ob peb caug mais ob puas mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa mpa.

Cov hauv qab no yog qhov tseem ceeb rau kev cuam tshuam rau cov viscos ntawm HPMC daws:

Molecular qhov hnyav: qhov loj dua cov molecular qhov hnyav ntawm HPMC, ntau dua nws viscosity. HPMC nrog lub siab molecular siab tuaj yeem tsim ntau qhov kev sib txuam hauv kev sib cuam tshuam hauv kev daws teeb meem, yog li nws ua kom muaj viscosity ntau dua.

HydroxyPropyl thiab methyl dua cov: qib siab dua ntawm hydroxypropyl) thiab methyl (-ch₃) hloov chaw, qib solubility thiab viscosity ntawm HPMC. Qhov nce nyob rau hauv hydroxyProps hloov yuav ua tau zoo rau solubility ntawm HPMC, thaum methylation txhim kho nws viscosity.

Kev daws teeb meem: kev xav ntawm HPMC daws tau ncaj qha cuam tshuam nws viscosity. Qhov siab dua ntawm cov kev xav, cov viscosity ntau dua. Feem ntau hais lus, cov kev daws teeb meem nrog kev xav ntawm 2% thiab 5% muaj ntau dua, thiab cov tshuaj volcosity ntawm cov kev daws teeb meem siab yuav siab dua.

Kaus: HPMC yaj tau zoo nyob rau hauv dej, yog li nws viscosity feem ntau yog ntsuas raws li cov kev daws teeb meem aqueous. Txawm li cas los xij, ntau hom kuab tshuaj tseem tuaj yeem cuam tshuam solubility thiab viscosity.

Kub: Qhov kub muaj cov nyhuv tseem ceeb rau kev viscos txog HPMC. Feem ntau hais lus, muaj kev nce qib nce yuav ua rau qhov kev daws teeb meem kub vim kub thiab nce ntxiv kom ua kom muaj cov suab nrov molecular yuav ua kom cov nplaim hluav taws xob ntau ntxiv.

HPMC viscosity feem ntau siv nyob rau hauv cov teb nram qab no:

Kws Tshuaj Ntsuam Xyuas: Nws yog siv los ua tus neeg saib xyuas kom tso tawm rau cov tshuaj, ib ntsiav tshuaj binder, thiab ib feem ntawm capsule plhaub. Nws tuaj yeem ua kom cov tshuaj ruaj ntseg ntawm lub cev los ntawm kev tswj viscosity.

Kev Lag Luam Khoom Noj: Siv los ua cov neeg sawv cev thiab cov khoom noj uas zoo nkauj thiab cov khoom noj, xws li cov khoom qab zib, khaub noom, thiab lwm yam.

Kev lag luam tsim kev tsim kho: Siv ua cov tuab thiab dej tuav cov ntaub ntawv hauv tsev xws li cement thiab kev siv tshuaj khib nyiab txhawm rau txhim kho cov khoom siv.

Kev Lag Luam Kev Lag Luam: Siv hauv cov khoom lag luam xws li cream, ntsej muag huv, qhov muag ntxoov ntxoo, thiab lwm yam kom muab cov viscosity zoo thiab ruaj khov.

Thaum xaiv cov khoom HPM zoo, nws yog qhov tseem ceeb kom nkag siab nws cov kev xav viscosity thiab kev ruaj khov hauv cov ntawv thov sib txawv. Yog tias muaj qhov xav tau rau qee qhov kev xaiv viscosity ntawm ib qho HPMC, koj tuaj yeem xa mus rau cov ntaub ntawv tshwj xeeb hauv cov khoom lag luam tshwj xeeb lossis ntsuas nws nrog ntsuas ntsuas ntsuas.