Hydroxy Protureshyl cellulose ntawm Putty rau phab ntsa scraping

HydroxyPropyyl methylulose (HPMC) feem ntau siv hauv kev ua kom muaj phab ntsa kom tiav rau phab ntsa scraping lossis skim txheej vim nws cov txiaj ntsig zoo. Ntawm no yog li cas HPMC ua rau kev ua tau zoo ntawm Putty rau phab ntsa scraping:

1. Dej khaws cia: HPMC yog paub rau nws cov khoom siv dej zoo. Hauv kev ua kom muaj txiaj ntsig, HPMC pab tswj cov dej kom zoo thoob plaws hauv cov txheej txheem thov. Qhov no ua kom tiav kev ua haujlwm tsis muaj peev xwm thiab tso cai rau lub putty kom ua raws li lub substrate yam tsis muaj ziab sai dhau.
2. Txhim kho qhov ua haujlwm: HPMC ua raws li kev hloov kho rheology, txhim kho qhov ua haujlwm ntawm kev ua haujlwm. Nws pab tswj cov viscosity thiab sib xws ntawm lub putty, ua rau nws yooj yim dua mus rau thiab siv sijhawm thaum lub sijhawm thov. Qhov no ua kom pom tseeb cov ntawv thov smoother thiab ua kom yooj yim cov txheej txheem scraping.
3. Txhim kho Adhesion: HPMC txhim kho cov nplaum ntawm putty rau substrate. Los ntawm kev tsim cov nyiaj sib zog ntawm cov putty thiab phab ntsa saum npoo av, HPMC pab kom tiv thaiv delamination thiab ua kom muaj kev ua tau ntev ntev ntev.
4. Txo cov shrinkage thiab tawg: HPMC pab kom txo qis shrinkage thiab tawg hauv kev ua kom muaj zog. Nws ua raws li cov phau ntawv sib txuas, tuav cov khoom sib xyaw ua ke thiab txo qis qhov ntxim nyiam ntawm shrinkage lossis tawg raws li lub putty dries thiab kho. Qhov no ua rau smoocher tiav thiab txo qhov xav tau ntawm kev ua haujlwm lossis kho vaj tse.
5. Txhim kho qhov tiav: Lub xub ntiag ntawm HPMC hauv Putty cov qauv tuaj yeem pab txhawb rau cov smoother thiab ntau yam kev sib tw tiav. Nws pab sau rau hauv kev tsis txaus ntseeg thiab tsim theem saum npoo, ua kom yooj yim dua kom ua tiav kev ua haujlwm zoo ntawm lub sijhawm cov txheej txheem scraping.
6. Kev tswj kom qhuav lub sijhawm: HPMC pab tswj lub sijhawm kom qhuav ntawm kev siv tawv. Los ntawm kev ua kom qeeb txoj kev ua kom qhuav, HPMC tso cai rau lub sijhawm txaus los thov thiab tswj cov putty ua ntej nws teeb tsa. Qhov no kom ntseeg tau tias lub putty tuaj yeem scraped du tsis tau ziab nrawm dhau.

Qhov kev sib ntxiv ntawm hydroxypropylencellulose (HPMC) kom muab cov phab ntsa scraping lossis Skim txheej, ua tiav zoo, thiab ua kom tiav zoo, thiab ua kom tiav zoo. Nws pab txhawb rau tus txheej txheem thov smoother