HydroxyPropyyl Metylcellulose (HPMC) yog qhov sib txuas ua ke hauv kev tsim kho kev tsim kho, tshwj xeeb hauv cov nplais nplaum nplaum. Qhov no ntau yam dej-soluble polymer muaj ntau yam ntawm cov khoom, ua rau nws muaj cov nplaum muaj zog, cov tshuaj pleev xim rau lwm yam.
Taw qhia rau hydroxyPropyyl Metthylcellulose (HPMC)
HydroxyPropyyl methylcellose (HPMC) yog cov tsis muaj tshuaj lom, organic, dej-soluble polymer dav siv hauv kev tsim kho. Nws yog qhov ua kom pom tseeb ntawm cellulose, lub ntuj polymer pom nyob rau hauv ntoo thiab lwm yam khoom nroj nroj. HPMC yog chemically hloov los ntawm kev ntxiv hydroxypropyl thiab methyl pawg rau lub cellulose cellebone, li kev txhim kho nws cov dej xau, thickening thiab nplaum cov khoom.
HPMC yog cov polymer ntau yam uas tuaj yeem kho rau cov khoom lag luam tshwj xeeb. Nws muaj nyob hauv cov qib sib txawv, los ntawm tsawg rau siab viscosity, thiab tuaj yeem kho nrog ntau qib ntawm hydroxypropyl thiab methscs hloov. Qhov no tso cai rau cov chaw tsim khoom kom zoo-qhib cov yam ntxwv ua tau zoo ntawm lawv cov khoom, ua rau lawv siv tau yooj yim dua thiab pheej yig dua los tsim khoom.
Qhov zoo ntawm HPMC hauv cov nplais nplaum
HPMC tau dav siv nyob rau hauv cov nplais nplaum ua rau nws cov txiaj ntsig ntau. Nov yog qee qhov laj thawj vim li cas HPMC yog cov polymer ntawm kev xaiv rau pobzeb cov nplaum:
1. Dej khaws cia
HPMC tuaj yeem nqus thiab khaws cov dej ntau, ua rau nws ib tus neeg sawv cev kom zoo tshaj plaws hauv cov nplais nplaum. Qhov no tseem ceeb vim tias cov dej yuav pab ua kom cov nplaum thiab khi nws rau substrate. Nrog HPMC, cov nplais nplaum nplaum tseem ua haujlwm ntev dua, uas muab rau installer ntau lub sijhawm los siv cov nplaum thiab kho cov nplais ua ntej nws teeb tsa.
2. Thickening
HPMC yog cov tuab uas ua rau pobzeb cov nplaum ntau dua, pab txhim kho lawv txoj kev sib deev. HPMC thickens cov nplaum los ntawm cov tais dej molecules, uas thickens cov nplaum thiab tsim cov tshuaj txhuam ntxiv. Qhov no ua rau nws yooj yim dua rau cov nplaum kom tusyees thiab txo qhov kev pheej hmoo ntawm daim di ncauj tawg (piv txwv li tsis sib xws ntawm cov vuas).
3. Txhim Kho Adhesion
HPMC txhim kho cov nplaum ntawm cov nplais nplaum vim nws cov khoom nplaum. Thaum ntxiv rau ib qho nplaum, HPMC ua ib zaj duab xis nyias nyias nyob rau saum npoo ntawm substrate uas pab cog lus nplaum rau cov nplais. Cov yeeb yaj kiab kuj txwv tsis pub muaj cov nplaum los ntawm kev ziab tawm sai sai, ua rau nws xiam lub zog.
4. Yooj Yim
HPMC tuaj yeem ua cov pobzeb nplaum muaj ntau dua, uas yog qhov tseem ceeb hauv cov chaw uas txav mus los, xws li hauv cov tsev uas sib luag lossis kev sib tw av. HPMC pab ua kom cov nplaum ntau dua, tso cai rau yooj yim dua, tso nrog lub tsev, txo qhov kev pheej hmoo ntawm cov vuas tawg lossis poob tawm.
5. Los ntawm cov khoom ntiag tug
HPMC pab txo qhov kev pheej hmoo ntawm phab ntsa nplais nplaum nplaum nplaum nplaum. Vim tias nws cov khoom tuab tuab, HPMC pab tiv thaiv cov nplaum los ntawm slipping lossis sagging tawm ntawm phab ntsa ua ntej nws teeb tsa. Qhov no tuaj yeem pab daws kom ua tiav cov nplais nplaum sib haum ntau dua thiab txo qhov xav tau ntawm kev ua haujlwm.
Hauv kev xaus
HPMC yog ntau yam polymer uas muaj ntau cov txiaj ntsig rau kev tsim kho kev tsim kho, tshwj xeeb tshaj yog hauv cov nplais nplaum nplaum. Nws cov dej-khaws cia, thickening, khi, yoog raws thiab tiv thaiv cov khoom siv ua nws cov kev xaiv ntawm cov tub num kev siv thoob ntiaj teb. Los ntawm kev siv HPMC kom nplua-qhib kev ua yeeb yam ntawm cov khoom nplaum uas muaj peev xwm ua tau yooj yim, muaj qhov muaj zog tiv thaiv thiab dej tsis kam, thiab tsis tshua ua tiav. Nws tsis yog qhov xav tsis thoob, tom qab ntawd, HPMC yog ib qho tseem ceeb ntawm kev tsim kev tsim kho niaj hnub no.
Lub Sijhawm Post: Sep-20-2023