HPMC, tseem hu ua HydroxyPropyyl methylulose, yog qhov sib txuas ua ke rau tsev neeg ntawm cellulose muaj kev hais ua neeg. Nws yog muab los ntawm cellulose, lub ntuj polymer pom hauv tsob ntoo cell phab ntsa. HPMC tau siv dav hauv kev tsim kho kev lag luam vim nws cov khoom muaj ntau yam.
HPMC feem ntau siv raws li cov tuab, phau ntawv, zaj duab xis yav tas los thiab cov khoom xyaw ua ke, plasters, plasters thiab grouts. Nws cov qauv tshuaj tso cai rau nws nqus dej thiab tsim cov khoom siv gel zoo li uas txhim kho cov khoom ua haujlwm, cov khoom nplaum thiab sag tsis kam ntawm cov ntaub ntawv hauv tsev.
Nov yog qee qhov khoom tseem ceeb thiab kev siv HPMC hauv kev tsim kho kev tsim kho:
Dej khaws cia: HPMC nqus thiab khaws dej, tiv thaiv cov khoom noj kom qhuav ntawm kev ziab sai sai. Qhov no pab txo cov kev tawg, txhim kho cov dej haus thiab txhim kho lub zog tag nrho thiab cov khoom siv ua haujlwm ruaj khov.
Txhim kho cov txheej txheem: HPMC ua raws li kev hloov kho rheology, muab cov ntaub ntawv kho kom zoo dua thiab yooj yim dua tshiab. Nws txhim kho kev sib tw thiab cov quav tsis taus ntawm cov neeg nplua nuj thiab plasters, ua rau lawv yooj yim rau lis thiab thov.
Adhesion thiab Cohesion: HPMC txhim kho adhesion ntawm cov khoom sib txawv hauv tsev. Nws nce txoj hlua khi ntawm cov nplais nplaum, cov plasters thiab plasters, ua kom zoo dua cov nplaum kom substrates xws li pob zeb zoo li cov pob zeb.
Sag tiv thaiv: HPMC txo sag lossis collapse ntawm cov ntaub ntawv vert xws li vuas nplaum lossis thawj cov ntawv thov. Qhov no pab tswj cov kev xav tau tuab thiab tiv thaiv kev ua yuam kev los yog dripping.
Zaj duab xis tsim: Thaum HPMC dries, nws tsim cov nyias, hloov tau yooj yim, cov yeeb yaj kiab pob tshab. Zaj yeeb yaj kiab no tuaj yeem muab cov dej tsis zoo, huab cua tiv thaiv thiab kev tiv thaiv saum npoo rau cov khoom siv hauv tsev.
Lub sijhawm Post: Jun-06-2023