Nyob rau hauv centent cortar thiab gypsum-raws li surry, hydroxypropylulose metylropylulose, thiab sag tsis kam ntawm slurry.
Yam khoom xws li cua kub, ntsuas kub thiab cua kub yuav cuam tshuam rau cov dej colatilization thiab gypsum-based khoom. Yog li ntawd, nyob rau lub caij sib txawv, muaj qee qhov sib txawv ntawm cov dej ua kom ruaj khov ntawm cov khoom lag luam nrog tib medroxypropylulose ntxiv. Hauv kev tsim kho tshwj xeeb, cov dej khaws cov nyhuv khaws cia ntawm cov slurry tuaj yeem hloov kho los ntawm nce lossis txo tus HPMC ntxiv. Dej khaws cia hauv qab cov kev mob siab yog qhov ntsuas tseem ceeb kom paub qhov txawv ntawm hydroxypropyl methylculuculose ether.
Zoo heev hydroxypropy methylulose cov khoom lag luam tuaj yeem daws cov teeb meem ntawm dej rov qab nyob rau hauv qhov kub siab. Hauv cov caij nyoog kub, tshwj xeeb tshaj yog nyob rau hauv cov chaw kub thiab qhuav thiab nyias txheej HPMC yuav tsum txhim kho cov dej khaws cia ntawm cov slurry. High-zoo HPMC muaj kev sib txig zoo heev. Nws cov methoxy thiab hydroxyprropoxy pawg yog tusyees faib raws lub peev xwm molecular, uas tuaj yeem txhim kho lub peev xwm ntawm cov dej hydroxyl thiab itherchen kom tsim cov dej hydrodiat. , yog li ntawd cov dej dawb los ua ib txoj dej ntws, yog li kom tswj tau cov dej evapontively los ntawm huab cua siab, thiab ua tiav dej siab.
Zoo hydroxypropal methylcellulose tuaj yeem sib xyaw thiab cov khoom ntub dej, thiab cov khoom ntub dej, thiab qhwv txhua qhov chaw ntub dej, thiab qhwv txhua qhov chaw ntub dej, thiab muab cov khoom ntub dej, thiab qhwv txhua yam ntub dej hauv lub sijhawm ntev, thiab cov Cov tshuaj tiv thaiv hydring nrog cov khoom sib xyaw ua ke kom ntseeg tau tias lub zog sib npaug thiab lub zog compressive ntawm cov khoom.
Yog li ntawd, kev tsim kho kub-kub, txhawm rau kom ua tiav cov khoom siv hpmc zoo li, nws yuav tsum muaj cov dej tsis txaus, nws yuav muaj lub zog tsis txaus, txo lub zog, tawg, hollowing, hollowing thiab shedding tshwm sim los ntawm kev ziab ntau dhau. Teeb meem, tab sis kuj tseem nce cov kev tsim kho cov neeg ua haujlwm. Raws li cov tee ntsuas kub, tus nqi HPMC ntxiv tuaj yeem txo qis qis, thiab tib cov nyhuv retentely yuav ua tiav.
Lub Sijhawm Post: Apr-13-2023