Hydroxypropylroylrcellulose (HPMC) yog ib feem ntau ntau yam siv hauv kev tsim kho kev tsim kho. Nws zwm rau lub cellulose ether qeb lij thiab tau los ntawm ntuj ntawm lub ntsej muag. HPMC muaj nuj nqis rau nws lub peev xwm los hloov cov khoom ntiag tug ntawm cov ntaub ntawv hauv tsev, thiab ib qho ntawm nws cov ntawv thov tseem ceeb yog cov kev ntxiv dej.
Nta ntawm HPMC
Dej solubility: HPMC yog soluble heev hauv dej, ua rau nws haum rau cov dej-ua qauv.
Thickener: Ua raws li cov tuab tuab kom nce viscosity ntawm cov xim pleev xim.
Zaj duab xis tsim: HPMC pab ua cov yeeb yaj kiab ruaj khov, cov yeeb yaj kiab niaj hnub ntawm cov substrates.
Txhim kho cov kev ua haujlwm: cov txheej txheem muaj hpmc tau txhim kho cov haujlwm ua haujlwm, pub rau kev thov kom yooj yim dua.
Daim Ntawv Thov Hauv Architectural Plasters
1. Cov xim looj cov xim huv:
HPMC feem ntau siv nyob rau hauv looj cov xim tsev los txhim kho rheology thiab tiv thaiv sag.
Nws pab tau xim ruaj khov thiab tiv thaiv kev daws teeb meem, ua rau muaj kev ruaj khov dua thiab zoo nkauj tiav.
2. Tshuaj khib thiab plaster:
Nyob rau hauv collefulations cov qauv, HPMC ua raws li dej tuav kom tiv thaiv tsis taus dej thaum kev tsim kho.
Nws txhim kho adhesion, kev ua haujlwm kom ua haujlwm thiab sib txuas lus ntawm plasters thiab plaster.
3. Pobzeb nplaum:
HPMC yog siv rau hauv cov nplais nplaum nplaum kom txhim kho cov vuas luaj ntawm cov vuas rau substrate.
Nws txhim kho lub sijhawm qhib qhib, tso cai rau lub sijhawm siv tau ntev dua yam tsis muaj kev cuam tshuam rau kev sib haum xeeb.
4. Gypsum-based txheej:
Gypsum-based txheej txheej tau txais txiaj ntsig los ntawm cov khoom siv dej-khaws cia ntawm HPMC, tiv thaiv kev tawg thiab ua kom muaj qhov chaw du.
Zaj duab xis-ua cov khoom pab tsim cov nplaim ntau dua.
Qhov zoo ntawm HPMC hauv cov dej pleev dej
Cov phooj ywg ib puag ncig: HPMC txheej txheej yog dej raws ib puag ncig, txo qhov kev cuam tshuam ib puag ncig ntawm kev siv tshuaj tiv thaiv ib puag ncig.
Txhim kho cov khoom: HPMC imparts ntau yam ntawm cov khoom xav tau rau cov txheej txheem sib tw, suav nrog kev txhim kho adhesion, txheej txheem thiab ua kom tiav.
Txo cov VOC pa hluav taws xob: Cov xim pleev xim rau cov dej uas yuav tsum muaj cov xim tha xim qis (voc)
Daim Ntawv Qhia Qhia
Thaum tsim cov txheej txheej HPMC, cov lus qhia hauv qab no yuav tsum tau txiav txim siab:
Kev pom zoo tshaj plaws: kev xav tau HPMC yuav tsum ua tib zoo ua kom tiav kom ua tiav cov yam ntxwv xav tau yam tsis cuam tshuam lwm cov khoom.
Kev sib raug zoo: xyuas kom meej nrog lwm cov khoom xyaw ntawm cov xim ua xim xws li pigments, binders thiab ntxiv.
Kev ua kom sib xyaw: cov txheej txheem sib xyaw kom zoo yuav tsum tau ua raws li kev sib cais ntawm HPMC hauv txheej.
HydroxyPropyyl methylcellulose yog ib qho tseem ceeb additive hauv dej-raws cov qauv ua qauv. Nws cov vagatility thiab peev xwm los txhim kho ntau yam ntawm cov khoom xaiv ua kom nws xaiv cov qauv nrov thiab kev ua haujlwm siab txheej daws teeb meem. Raws li kev tsim kho kev tsim kho txuas ntxiv ua ntej ua ntej kev ua haujlwm ruaj khov thiab HPMC yog qhov tseem ceeb tshaj plaws hauv txoj kev txhim kho cov txheej txheem siab tshaj plaws hauv cov thev naus laus zis.
Lub Sijhawm Post: Feb-19-2025