HydroxyPropyyl methylcellose (HPMC) yog cov multifunctional polymer dav siv hauv kws tshuaj, khoom noj, pleev thiab tsim kev lag luam. Nws muaj qhov zoo heev thickening, ua yeeb yaj kiab ua yeeb yaj kiab, ruaj khov thiab lubricating cov khoom thiab ua lub luag haujlwm tseem ceeb hauv ntau cov khoom tsim. Lub viscos ntawm HPMC yog ib qho ntawm nws cov khoom tseem ceeb thiab muaj qhov cuam tshuam tseem ceeb ntawm cov khoom lag luam ua tau thiab thov.
1. Thickening nyhuv
Lub viscos tuaj ntawm HPMC feem ntau yog txiav txim siab los ntawm nws txoj kev siv hluav taws kub thiab qib hloov pauv (hom thiab qib hloov). Siab visccosity HPMC tuaj yeem ua rau muaj viscosity ntawm kev daws teeb meem, yog li ua si lub luag haujlwm ua kom tuab. Piv txwv li, hauv kev lag luam zaub mov, HPMC feem ntau siv los ua cov tuab hauv cov khoom noj siv mis, cov dej thiab cov khoom ci thiab muaj kev ruaj khov ntawm cov khoom. HPMC nrog cov viscosity ntau dua tuaj yeem tiv thaiv cov kua stratification thiab txhim kho cov khoom lag luam.
2. Tshuaj Tso Tawm
Hauv kev lag luam kws tshuaj, HPMC feem ntau siv hauv kev tswj cov tshuaj tso tawm. High-viscosity HPMC tuaj yeem tsim lub siab-viscosity gel hauv lub cev thiab maj mam tso cov tshuaj, pab kom ua tiav cov tshuaj tso tawm ntev-ntev. Piv txwv li, hauv kev ncua-tso cov ntsiav tshuaj thiab cov ntsiav tshuaj, lub viscosity ntawm HPMC muaj qhov cuam tshuam ncaj qha rau tus nqi ntawm kev tso yeeb tshuaj. Xaiv HPMC nrog viscosity tsim nyog tuaj yeem kho cov tshuaj tso tawm tshuaj raws li xav tau, txhim kho kev kho cov teebmeem thiab txo cov kev mob tshwm sim.
3. Zaj duab xis-tsim cov khoom
HPMC muaj cov yeeb yaj kiab zoo heev-tsim cov khoom, uas yog tshwj xeeb tshaj yog nyob rau hauv ntau daim ntaub ntawv thov. High-viscosity HPMC tuaj yeem ua cov yeeb yaj kiab muaj zog thiab feem ntau siv los tiv thaiv cov tshuaj, noo thiab oxygen thiab txuas lub txee lub neej ntawm cov khoom. Tsis tas li ntawd, hauv cov tshuaj pleev ib ce, cov viscosity high-viscosity HPMC tuaj yeem siv nyob rau hauv cov khoom xws li ntsej muag ntsej muag, gels thiab lotions los muab cov kev pab zoo thiab kev cuam tshuam zoo.
4. Kev ruaj khov
HPMC muaj cov tshuaj ruaj khov zoo thiab thermal stability nyob rau hauv aqueous. Siab viscosity HPMC tuaj yeem txhim kho kev ruaj khov ntawm lub cev ntawm cov khoom lag luam thiab tiv thaiv kev sib hais haum me me thiab stratification. Hauv emulsions, raug tshem tawm thiab colloidal cov kev daws teeb meem ntawm HPMC tuaj yeem txhim kho kev ruaj ntseg ntawm lub system thiab xyuas kom meej tias cov khoom lag luam nyob rau lub sijhawm cia thiab siv.
5. Lubricity
Siab viscosity HPMC muaj covric dej zoo, uas tseem yog qhov tseem ceeb hauv ntau cov ntawv thov. Piv txwv li, hauv lub tsev kev lag luam, HPMC feem ntau siv nyob rau hauv xis mas cov roj nplua nyeem thiab cov tuab neeg txhim kho kev tsim kho thiab lub zog muaj zog ntawm cov khoom. Tsis tas li ntawd, hauv kev ua zaub mov noj, cov viscosity HPMC tuaj yeem txhim kho kev ua kom muaj zog thiab kos duab ci thiab txhim kho cov khoom noj.
6. Viscosity xaiv
Hauv cov ntawv thov siv, nws yog qhov tseem ceeb los xaiv HPMC nrog viscosity tsim nyog. Lub viscosity uas yog dhau lawm yuav ua rau cov tshuaj nyuaj los daws thiab kov, thaum lub sijhawm qis heev yuav tsis muab cov teebmeem thickening thiab ruaj khov. Yog li ntawd, nyob rau hauv cov khoom siv formula tsim, nws yog feem ntau tsim nyog los xaiv HPMC nrog qhov tsim nyog viscosity raws li cov tshuaj uas tsim nyog raws li kev sim kom ua tiav cov txiaj ntsig zoo tshaj plaws.
Lub viscos ntawm HPMC muaj qhov cuam tshuam tseem ceeb ntawm nws cov haujlwm thiab kev ua tau zoo hauv ntau yam khoom tsim. Los ntawm kev xaiv thiab kho lub viscosity ntawm HPMC, ntau lub zog xws li thickening, malred tso tawm, tswjfwm ntawm cov khoom lag luam tuaj yeem ua tiav kom tau raws li cov kev xav tau ntawm kev lag luam sib txawv thiab kev siv. Hauv kev siv cov tswv yim, kev nkag siab tob ntawm HPMC thiab kev xaiv tsim nyog raws cov qauv uas tshwj xeeb yuav pab txhim kho cov khoom lag luam zoo thiab kev sib tw.
Lub Sijhawm Post: Lub Yim-12-2024