Viscosity yog ib qho tseem ceeb ntsuas rau kev ua tau zoo ntawm hydroxypropyl methylulose (HPMC). HPMC tau siv dav hauv ntau yam kev lag luam vim nws cov dej-soluble polymer, tsis-ionic, tsis muaj tshuaj lom thiab muaj kuab lom thiab lwm yam khoom. Nws muaj zaj duab xis zoo heev, thickening thiab nplaum cov khoom, ua rau nws xaiv qhov ntxim nyiam rau ntau cov ntawv thov.
Viscosity yog kev ntsuas ntawm cov kua dej tsis kam mus ntws. Hauv lwm lo lus, nws ntsuas lub thickness lossis thinness ntawm cov kua. Viscosity yog ib qho tseem ceeb rau HPMC kev ua tau zoo raws li nws cuam tshuam rau cov neeg muaj kev daws teeb meem. Qhov siab tshaj lub viscosity, cov tuab dua kev daws teeb meem thiab qeeb qeeb nws ntws. Viscosity muaj qhov cuam tshuam ncaj qha rau daim ntawv thov thiab kev ua haujlwm ntawm HPMC.
Ib qho ntawm cov ntawv thov tseem ceeb ntawm HPMC yog qhov tuab dua. Vim nws lub siab molecular hnyav thiab cov hydrogen uas khi cov khoom, HPMC cov ntaub ntawv tuab zoo li cov khoom siv thaum uas yaj hauv dej. Lub viscosity ntawm HPMC yog qhov tseem ceeb hauv kev txiav txim siab qhov sib xws ntawm kev daws teeb meem. Qhov siab tshaj lub viscosity, cov tuab tuab ntawm kev daws teeb meem. Cov cuab yeej no ua rau nws zoo tshaj rau cov ntawv thov thickening hauv cov khoom xws li cov xim tha xim, tsho xim thiab cov nplaum.
Lwm daim ntawv thov tseem ceeb ntawm HPMC yog cov kws tshuaj. Nws yog siv los ua kev zam nyob rau hauv ntau cov qauv xws li cov ntsiav tshuaj, tsiav tshuaj thiab tshuaj pleev. Lub viscosity ntawm HPMC ua si lub luag hauj lwm tseem ceeb hauv kev tsim cov khoom ntawm cov khoom no. Nws cuam tshuam cov ntws, xwm yeem thiab kev ruaj khov ntawm cov qauv. Yuav tsum muaj viscosity yog yuav tsum tau ua kom ntseeg tau tias cov khoom yog yooj yim los tuav thiab tuaj yeem tso tau tseeb. HPMC muaj viscosity tsawg thaum yaj hauv dej, ua rau nws zoo tagnrho rau kev npaj cov kev daws teeb thiab raug ncua.
Viscosity tseem ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm HPMC rau kev tsim kho kev tsim kho. Nws yog dav siv los ua tuab thiab phau ntawv hauv cov ntaub ntawv casent xws li cug thiab grout. Lub Viscosity ntawm HPMC txiav txim siab cov txheej txheem thiab yooj yim ntawm kev siv cov khoom siv no. Yuav tsum muaj viscosity yog yuav tsum tau ua kom ntseeg tau tias cov ntaub ntawv tuaj yeem thov tau yooj yim thiab kis tusyees. HPMC muaj cov voscosity zoo heev uas ua rau nws zoo tagnrho rau kev siv cov ntawv thov.
Viscosity tseem cuam tshuam rau lub txee txee ntawm HPMC cov khoom lag luam. Lub visccosity ntawm HPMC tuaj yeem nce lossis txo qis vim muaj ntau yam xws li kub, pH thiab siab. Kev hloov pauv hauv viscosity tuaj yeem cuam tshuam cov khoom lag luam thiab kev ua haujlwm, uas ua rau cov khoom tsis ua haujlwm lossis txo cov txiaj ntsig lossis txo cov txiaj ntsig. Yog li ntawd, cov khoom viscosity ntawm cov khoom hpmc yuav tsum raug tswj kom ntseeg tau tias lawv qhov ruaj khov thiab ua haujlwm tau zoo.
Viscosity yog ib qho tseem ceeb ntsuas rau kev ua tau zoo ntawm hydroxyprropylardcethylcelleculose (HPMC). Nws cuam tshuam cov dej ntws tawm, thickness thiab ua haujlwm ntawm HPMC cov khoom lag luam. Txoj cai viscosity yog yuav tsum tau ua kom ntseeg tau tias cov khoom yog yooj yim thov thiab ntsuas ntsuas, muaj qhov ruaj khov kho thiab muaj txiaj ntsig zoo dhau sijhawm. HPMC muaj cov viscosity zoo heev, uas ua rau nws xaiv kom txaus nyiam rau ntau yam kev siv hauv kev lag luam xws li cov tshuaj, kev saib xyuas thiab saib xyuas tus kheej.
Lub Sijhawm Post: Sep-07-2023