Puas muaj teeb meem xaiv qib CMC zoo? Kawm paub seb qhov viscosity, qib kev hloov pauv, thiab kev huv huv cuam tshuam li cas rau kev ua tau zoo hauv cov khoom siv av nplaum, khoom noj, tshuaj, thiab ntau ntxiv.
Tshawb nrhiav seb RDP txhim kho kev tuav dej thiab kev tiv thaiv kab nrib pleb li cas, ua rau cov putty phab ntsa zoo dua thiab txhim khu kev qha.
HPMC thiab MHEC yog ob qho tseem ceeb cellulose ethers siv rau hauv kev tsim kho thiab kev pleev xim, tab sis lawv txawv li cas? Tsab xov xwm no tshawb nrhiav qhov sib txawv tseem ceeb ntawm Hydroxypropyl Methylcellulose (HPMC) thiab Methyl Hydroxyethyl Cellulose (MHEC), suav nrog lawv cov khoom siv tshuaj lom neeg, kev khaws dej, kev muaj peev xwm ua kom tuab, thiab kev siv zoo tshaj plaws.
Tshawb nrhiav seb MHEC (Methyl Hydroxyethyl Cellulose) ua rau cov nplais nplaum muaj zog npaum li cas thiab ntev lub sijhawm qhib rau kev teeb tsa ruaj khov thiab ua haujlwm tau zoo li cas. Kawm cov lus qhia txog kev tsim cov qauv, cov txiaj ntsig uas tau txais kev txhawb nqa los ntawm kev tshawb fawb, thiab cov kev daws teeb meem rau cov teeb meem nplaum pobzeb uas tshwm sim ntau.
Tshawb nrhiav seb Hydroxyethyl Cellulose (HEC) txhim kho qhov viscosity, stability, thiab yooj yim siv hauv cov xim dej li cas.
Tsab xov xwm no tshawb nrhiav HPMC lub luag haujlwm ua ib qho thickener, emulsifier thiab stabilizer hauv ntau yam khoom noj, kom ntseeg tau tias muaj kev sib xws, khaws cov dej noo, thiab ua kom cov khoom ua haujlwm zoo dua. Kawm txog nws cov txiaj ntsig, kev siv, thiab kev ua raws li cov qauv kev nyab xeeb zaub mov.
Tshawb nrhiav cov txheej txheem tsim khoom tshiab ntawm HPMC - los ntawm kev rho tawm cellulose ntuj thiab etherification mus rau kev ziab thiab kev tswj xyuas zoo - qhia txog kev txhim kho cov txheej txheem tsis ntev los no thiab kev pib ua kom ruaj khov hauv kev tsim khoom HPMC.
Tshawb nrhiav seb Hydroxypropyl Methyl Cellulose (HPMC) txhim kho cov tshuaj nplaum rwb thaiv tsev los ntawm kev txhim kho kev khaws cia dej, kev ua haujlwm tau zoo, thiab kev nplaum. Kawm txog nws cov txiaj ntsig tseem ceeb thiab kev siv hauv kev tsim kho.
Kawm paub seb HPMC ua rau gypsum thiab cement-based dry-mixed mortar ua haujlwm tau zoo li cas los ntawm kev txhim kho kev ua haujlwm tau zoo, kev khaws dej, thiab kev nplaum. Tshawb nrhiav cov kev coj ua zoo tshaj plaws thiab cov txiaj ntsig rau cov txiaj ntsig zoo tshaj plaws ntawm kev tsim kho.
Tsab xov xwm no tshawb nrhiav lub luag haujlwm tseem ceeb ntawm Hydroxyethyl Cellulose (HEC) hauv kev ua haujlwm drilling, tsom mus rau nws qhov ua tau zoo hauv kev tswj cov kua dej poob rau hauv cov qauv permeable.