MC siv rau qhuav hmoov mortar yuav tsum yog hmoov, nrog dej tsawg, thiab cov fineness kuj yuav tsum tau 20% ~ 60% ntawm particle loj yuav tsum tsawg tshaj li 63um.Lub fineness cuam tshuam rau solubility ntawm methyl cellulose ether.Coarse MC feem ntau yog nyob rau hauv daim ntawv ntawm granules, thiab nws yog ib qho yooj yim rau yaj nyob rau hauv dej tsis muaj agglomeration, tab sis cov dissolution tus nqi qeeb heev, yog li nws tsis haum rau siv nyob rau hauv qhuav hmoov mortar.
Nyob rau hauv qhuav hmoov mortar, MC yog dispersed ntawm aggregates, nplua fillers thiab cement thiab lwm yam ntaub ntawv cementing.Tsuas yog cov hmoov zoo txaus tuaj yeem zam methyl cellulose ether agglomeration thaum sib tov nrog dej.Thaum MC ntxiv nrog dej kom yaj cov agglomerates, nws nyuaj heev rau disperse thiab yaj.Coarse MC tsis yog tsuas yog khib nyiab xwb, tab sis kuj txo lub zog hauv zos ntawm mortar.Thaum xws li cov hmoov qhuav mortar yog siv rau hauv ib cheeb tsam loj, kev kho ceev ntawm cov hmoov qhuav hauv zos yuav txo qis, thiab cov kab nrib pleb yuav tshwm sim vim lub sijhawm sib txawv.Rau lub tshuab txau mortar nrog kev tsim kho tshuab, vim lub sijhawm sib xyaw luv, qhov yuav tsum tau ua kom zoo dua.
Qhov zoo ntawm MC kuj cuam tshuam rau nws cov dej tuav.Feem ntau hais lus, rau methyl cellulose ethers nrog tib viscosity tab sis txawv fineness, nyob rau hauv tib qhov sib ntxiv, qhov finer lub finer qhov zoo dua cov dej tuav nyhuv.
Cov dej tuav ntawm MC kuj muaj feem xyuam rau qhov kub thiab txias siv, thiab cov dej tuav ntawm methyl cellulose ether txo qis nrog qhov kub thiab txias.Siv rau ntawm kub substrates nyob rau hauv kub kub tej yam kev mob kom ceev lub curing ntawm cement thiab hardening ntawm qhuav hmoov mortar.Qhov txo qis ntawm cov dej tuav tus nqi ua rau muaj kev cuam tshuam ntawm kev ua haujlwm thiab kev ua haujlwm tawg, thiab nws yog qhov tseem ceeb los txo qhov cuam tshuam ntawm qhov kub thiab txias hauv qhov xwm txheej no.
Txawm hais tias methyl hydroxyethyl cellulose ether additives yog tam sim no suav hais tias yog nyob rau hauv pem hauv ntej ntawm txoj kev loj hlob, lawv dependence rau kub tseem yuav ua rau tsis muaj zog ntawm kev ua tau zoo ntawm qhuav hmoov mortar.Los ntawm qee qhov kev kho tshwj xeeb ntawm MC, xws li nce qib ntawm etherification, thiab lwm yam, cov dej tuav tau tuaj yeem tswj tau ntawm qhov kub siab dua, kom nws tuaj yeem muab kev ua tau zoo dua hauv cov xwm txheej hnyav.
Post lub sij hawm: Mar-20-2023