Lub luag haujlwm ntawm hydroxypropyl methyl cellulose hauv colle ntub

Ntub khaub noom cug: mixed cug yog ib qho kev sib xyaw ua ke, ua ntu zus, thiab siv nyob rau lub sijhawm tshwj xeeb, thiab siv nyob rau hauv lub sijhawm tshwj xeeb, thiab siv nyob rau hauv lub sijhawm tshwj xeeb, thiab siv nyob rau hauv lub sij hawm cia khoom siv, thiab siv nyob rau hauv lub sijhawm tshwj xeeb, thiab siv nyob rau hauv lub sijhawm tshwj xeeb, thiab siv nyob rau hauv lub sijhawm tshwj xeeb, thiab siv nyob rau hauv lub sijhawm tshwj xeeb, thiab siv nyob rau hauv lub sijhawm tshwj xeeb, thiab siv nyob rau hauv lub sij hawm sib xyaw, thiab siv nyob rau hauv lub sij hawm cia khoom siv, thiab siv nyob rau hauv lub sijhawm tshwj xeeb, thiab siv nyob rau hauv lub sijhawm tshwj xeeb, thiab siv nyob rau hauv lub sijhawm tshwj xeeb, thiab siv nyob rau lub sijhawm tshwj xeeb uas tau ua tiav ntub dej sib xyaw.

HydroxyPropy cellulose yog siv los ua dej tuav tus neeg sawv cev rau cov cement cort, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder cug, retarder tshuaj kaw. Hauv Gypsum ua cov phau ntawv los txhim kho cov ntawv thov thiab txuas lub sijhawm ua haujlwm HPMCY yog li ntawd kev ziab HPMCELLCELL Dej khaws cia yog ib qho tseem ceeb ntawm hydroxypropyl cellulose hpmc, thiab nws kuj yog qhov kev txhawj xeeb ntawm ntau cov tshuaj tua kab cug. Qhov cuam tshuam uas cuam tshuam rau cov txiaj ntsig kev ua kom huv ntawm cov tshuaj khib ntub muaj xws li HPMC ntxiv, lub hom phiaj ntawm HPMC, lub viscras ntawm cov khoom thiab qhov kub ntawm kev siv ib puag ncig.
HydroxyPropy cellulose hpmc hauv ntub dej lub luag haujlwm tseem ceeb, ib qho yog qhov thib ob yog qhov thib peb yog kev sib cuam tshuam nrog cov cement. Cellulose ether dej kom muaj nuj nqis nyob ntawm cov dej nqus dej, cug txheej ntaub, kaw lus dej, teeb sijhawm. Qhov siab dua cov pob tshab ntawm hydroxypropyl cellulose, qhov zoo dua cov dej khaws cia.
Qhov cuam tshuam rau cov dej ua kom huv ntawm cov tshuaj khib ntub xws li lub viscosity ntawm cellosity ntawm cellospose ntawm cellws ether, ntxiv tus nqi, qhov loj me thiab kub. Qhov ntau dua qhov viscosity ntawm cellulose ether, qhov zoo dua cov dej khaws cia. Viscosity yog qhov tseem ceeb parameter rau HPMC kev ua haujlwm. Rau tib cov khoom lag luam, siv cov qauv sib txawv los ntsuas cov tshuaj tua hluav taws xob ntawm cov txiaj ntsig sib txawv, qee qhov txawm los ntawm ob qho. Yog li, lub viscosity sib yuav yuav tsum tau nqa tawm hauv tib txoj kev xeem, suav nrog qhov kub thiab lwm yam, thiab lwm yam.

Feem ntau hais lus, ntau dua cov viscosity, qhov zoo dua cov dej khaws cia. Txawm li cas los xij, qhov siab dua viscosity, ntau dua cov molecular qhov hnyav ntawm HPMC, thiab qis dua cov solubility ntawm HPMC, uas muaj qhov tsis zoo ntawm lub zog thiab kev tsim kho kev tshuaj khib. Qhov siab tshaj lub viscosity, qhov pom ntau ntxiv rau cov txiaj ntsig thickening ntawm cug, tab sis nws tsis yog ncaj qha ntsig txog. Qhov siab tshaj plaws viscosity, ntau lo nplaum dua cov tshuaj khib nyiab ntub, kev tsim kho kom zoo, viscous SCRAPPRAPTION kev ua haujlwm thiab cov khoom zoo rau lub substrate. Txawm li cas los xij, kev txhim kho ntawm lub zog ntawm lub zog ntawm lub txiv ntoo qhuav nws tsis tau pab. Ob qho kev tsim kho, kev ua tau zoo tsis pom kev anti - dai ua tau zoo. Nyob rau hauv sib piv, qee qhov nruab nrab thiab tsis muaj viscosity tab sis hloov kho hydroxypropylulose tau ua tau zoo heev hauv kev txhim kho lub zog ntawm cov tshuaj khib nyiab ntub dej.
Cellulose ntau npaum li cas ntawm cellulose ether pmc ntub cia, ntau dua cov viscosity, qhov zoo dua cov dej rov qab. Fineness tseem yog ib qho tseem ceeb ntsuas ntawm hydroxypropyl methyl cellulose.
Lub txiaj ntsig ntawm hydroxypropyl cellulose tseem muaj qee yam cuam tshuam ntawm nws cov dej khaws cia. Nyob rau hauv ib txwm muaj xwm txheej, tib viscosity thiab sib txawv ntawm hydroxypropyl cellulose, raws li me me ntawm cov dej khaws cia kom zoo dua.
Hauv cov kab cell qhuav, ntxiv rau ntawm cellulose ether HPM yog tsawg heev, tab sis nws tuaj yeem txhim kho kev tsim kho ntawm cov khoom siv ntub dej, yog lub ntsiab ntxiv uas feem ntau cuam tshuam rau kev ua yeeb yam ntawm cug. Cov kev ua tau zoo ntawm cov tshuaj khib ntub tau cuam tshuam zoo heev los ntawm kev xaiv tsim nyog ntawm hydroxypropyl methylropy cellulose