HPMC, tseem hu ua hydroxypropyl methylcellulose, yog ib qho kev sib txuas ntawm tsev neeg ntawm cellulose ethers.Nws yog muab los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag cell phab ntsa.HPMC yog dav siv nyob rau hauv kev tsim kho kev lag luam vim nws multifunctional zog.
HPMC feem ntau yog siv los ua cov thickener, binder, zaj duab xis qub thiab dej-retaining tus neeg sawv cev hauv cov khoom siv hauv tsev xws li cov khoom siv cement, pobzeb adhesives, plasters, plasters thiab grouts.Nws cov qauv tshuaj tso cai rau nws nqus dej thiab tsim cov khoom zoo li gel uas txhim kho kev ua haujlwm, adhesion thiab sag tsis kam ntawm cov khoom siv hauv tsev.
Nov yog qee cov khoom tseem ceeb thiab kev siv ntawm HPMC hauv kev tsim kho kev lag luam:
Kev tuav dej: HPMC nqus thiab khaws cov dej, tiv thaiv cov khoom siv cement los ntawm kev ziab sai sai.Qhov no pab txo qhov tawg, txhim kho hydration thiab txhim kho tag nrho lub zog thiab kav ntev ntawm lub tsev cov khoom.
Txhim kho kev ua tau zoo: HPMC ua raws li kev hloov kho rheology, muab kev ua tau zoo dua thiab siv tau yooj yim ntawm cov ntaub ntawv tsim kho.Nws txhim kho qhov kev sib kis thiab kev poob qis ntawm cov mortars thiab plasters, ua rau lawv yooj yim dua los tuav thiab siv.
Adhesion thiab cohesion: HPMC txhim kho adhesion ntawm cov khoom siv sib txawv.Nws ua rau kom muaj zog ntawm cov pobzeb nplaum, plasters thiab plasters, kom ntseeg tau zoo adhesion rau substrates xws li pob zeb, ntoo thiab vuas.
Sag Resistance: HPMC txo sag los yog vau ntawm cov ntaub ntawv ntsug xws li cov nplais nplaum los yog primer thaum siv.Qhov no pab tswj cov thickness uas xav tau thiab tiv thaiv warping los yog dripping.
Zaj duab xis tsim: Thaum HPMC dries, nws tsim ib zaj duab xis nyias, hloov tau, pob tshab.Cov yeeb yaj kiab no tuaj yeem muab kev tiv thaiv dej zoo dua, tiv thaiv huab cua thiab tiv thaiv nto rau cov khoom siv hauv tsev.
Post lub sij hawm: Jun-06-2023