HPMC HydroxyPropyl Methyl celluloseNyob rau hauv catas colp thiab gypsum slurry, feem ntau ua si lub luag haujlwm ntawm dej khaws cia thiab thickening, tuaj yeem txhim kho adhesion thiab sag tsis kam ntawm slurry.
Huab cua kub, ntsuas kub thiab cua siab tus nqi yuav cuam tshuam rau cov dej evapor ntawm cov khoom siv xis thiab gypsum raws cov khoom. Yog li nyob rau hauv lub caij sib txawv, ntxiv hydroxypropyl methyl cellulose tib cov txiaj ntsig ntawm cov khoom lag luam kom muaj qee qhov sib txawv. Nyob rau hauv cov pob zeb ua kom zoo, cov dej khaws cov nyhuv khaws cia ntawm slurry tuaj yeem hloov kho los ntawm nce lossis txo tus HPMC. Cov dej tuav tseg ntawm methyl cellulose ntawm qhov ntsuas kub ntawm qhov ntsuas kub yog qhov ntsuas qhov tseem ceeb ntawm methyl cellulose ether.
Zoo tshajHydroxyPropyyl Methyl celluloseCov khoom lag luam series tuaj yeem daws tau qhov teeb meem ntawm dej rov qab nyob rau hauv cov siab kub. Nyob rau hauv kub lub caij kub, tshwj xeeb tshaj yog nyob rau hauv cov chaw kub thiab qhuav thiab nyias txheej thiab zoo HPMC txhawm rau txhim kho cov dej tuav ntawm slurry; HydroxyPropy cellulose (HPMC), kev sib xyaw ua ke yog cov pa roj carbon monoxygen thiab ag Yog li ua tau zoo tswj hwm huab cua kub los ntawm kev noo noo kom yaj, ua tiav cov dej siab khaws cia.
Zoo siab ntawm hydroxypropyl cellulose tuaj yeem sib xyaw ua ke thiab ntim cov khoom ntub dej, thiab cov khoom siv plaster, thiab cov khoom siv khov kho cov khoom siv hydration , yog li kom ntseeg tau tias cov nyiaj sib zog thiab compressive lub zog ntawm cov ntaub ntawv.
Hauv kev tsim kho, txhawm rau ua tiav cov nyhuv ntawm kev txuag dej, yuav tsum tau ntxiv cov khoom lag luam zooHPMCCov khoom lag luam ua raws li cov mis, tsis li ntawd, yuav muaj teeb meem ntau dhau los ntawm kev sib tw tsis muaj zog, tab sis kuj tseem ua rau muaj teeb meem kev tsim kho. Raws li qhov ntsuas kub tsawg dua, tus nqi ntawm HPMC tuaj yeem txo qis qis, thiab tib cov nyhuv retentely tuaj yeem ua tiav.
Lub sijhawm Post: Plaub-26-2024