Kev khaws cia dej los ntawmHydroxypropyl Methyl Celluloseyog ib qho ntawm cov khoom tseem ceeb ntawm Hydroxypropyl Methyl Cellulose. Cov yam xws li qhov kub thiab txias ntawm huab cua, qhov kub thiab txias thiab qhov ceev ntawm cua yuav cuam tshuam rau qhov dej ntws hauv cov cement mortar thiab cov khoom siv gypsum. Yog li ntawd, nyob rau ntau lub caij sib txawv, muaj qee qhov sib txawv ntawm cov dej khaws cia ntawm cov khoom uas muaj tib qho Hydroxypropyl Methyl Cellulose ntxiv.
Feem ntau, qhov siab dua qhov viscosity ntawm Hydroxypropyl Methyl Cellulose, qhov zoo dua qhov dej khaws cia nyhuv yuav yog, tab sis qhov cuam tshuam ntawm viscosity rau dej khaws cia yuav txo qis thaum viscosity tshaj 100,000 mpa.s. Rau Hydroxypropyl Methyl Cellulose nrog viscosity ntau dua 100,000, nws yog qhov tsim nyog los nce qhov ntau ntawm Hydroxypropyl Methyl Cellulose kom nce qhov dej khaws cia tus nqi.
Hauv kev tsim kho tshwj xeeb, qhov cuam tshuam ntawm cov dej ntws tuaj yeem hloov kho los ntawm kev nce lossis txo qhov ntau ntawm Hydroxypropyl Methyl Cellulose. Cov khoom lag luam Hydroxypropyl Methyl Cellulose tuaj yeem daws qhov teeb meem ntawm kev khaws dej hauv qab qhov kub siab. Hauv lub caij kub siab, tshwj xeeb tshaj yog nyob rau hauv thaj chaw kub thiab qhuav thiab kev tsim kho nyias nyias ntawm sab hnub ci, qhov zoo hydroxypropyl methylcellulose yog qhov yuav tsum tau ua kom zoo dua qhov kev khaws dej ntawm cov slurry.
Cov Hydroxypropyl Methyl Cellulose zoo muaj qhov sib xws zoo heev. Nws cov Methoxy thiab Hydroxypropoxy pawg tau faib sib npaug zos raws li cov saw hlau cellulose molecular. Nws tuaj yeem txhim kho cov pa oxygen atoms ntawm hydroxyl thiab ether bonds. Lub peev xwm ntawm kev sib txuas dej los tsim cov hydrogen bonds hloov cov dej dawb mus rau hauv dej khi, yog li tswj tau cov dej evaporation los ntawm huab cua kub siab thiab ua tiav cov dej khaws cia siab.
Zoo heevhydroxypropyl Methyl Cellulosetuaj yeem sib npaug thiab zoo disperse hauv cement mortar thiab gypsum-based cov khoom, qhwv tag nrho cov khoom khov, thiab tsim ib daim zaj duab xis ntub dej, thiab cov dej noo hauv lub hauv paus yuav raug tso tawm maj mam dhau lub sijhawm ntev. Ib qho kev cuam tshuam hydration tshwm sim nrog cov khoom inorganic gelling, yog li ua kom muaj zog sib txuas thiab lub zog compressive ntawm cov khoom. Yog li ntawd, nyob rau hauv kev tsim kho lub caij ntuj sov kub siab, txhawm rau kom ua tiav cov txiaj ntsig khaws cia dej, nws yog qhov tsim nyog los ntxiv cov khoom zoo Hydroxypropyl Methyl Cellulose hauv qhov ntau txaus raws li cov mis, txwv tsis pub, tsis txaus hydration, txo qis zog, thiab tawg yuav tshwm sim vim qhuav ntau dhau. Cov teeb meem zoo xws li hollowing, hollowing thiab poob kuj ua rau muaj kev nyuaj ntawm kev tsim kho rau cov neeg ua haujlwm. Raws li qhov kub poob qis, qhov ntau ntawm Hydroxypropyl Methyl Cellulose ntxiv tuaj yeem maj mam txo qis, thiab tib yam dej tuav cov txiaj ntsig tuaj yeem ua tiav.
Lub sijhawm tshaj tawm: Plaub Hlis-25-2024