1. Pib
Methylcellulose ether (MCE), raws li lub tsev tseem ceeb ntxiv, tau siv dav hauv cov ntaub ntawv hauv tsev, tshwj xeeb tshaj yog hauv gypsum tshuaj. Gypsum tshuaj khib tau dhau los ua cov khoom tseem ceeb hauv txoj kev tsim kho vim nws ua haujlwm tau zoo heev, kev ua haujlwm zoo thiab dej tuav cia. Raws li cov duab puab polymer ntawm methylcellulose ether ua lub luag haujlwm tseem ceeb hauv kev tswj hwm kev ua haujlwm ntawm Gypsum tshuaj khib.
2. Cov khoom thiab cov tshuab ntawm kev ua ntawm methylcellulose ether
2.1 Cov Khoom Yooj Yim ntawm Methylcellulose ether
Methylcellulose ether yog dej-soluble polymer compound tau los ntawm methylation hloov kho. Nws cov qauv txheej txheem tsuas yog siv cov piam thaj. Lub ether tuaj ua los ntawm methylation txhim kho nws solubility thiab thermal stability. Methylcellulose Cov Neeg Muaj Teeb Meem Sib Txawv thiab Cov Tes Tes Taw Hluav Taws Xob thiab Cov Khoom Siv Hluav Taws Xob Qhia Txog Lawv Daim Ntawv Thov hauv cov ntaub ntawv tsim tsev.
2.2 Cov nyhuv ntawm methyl cellulose ether hauv gypsum tshuaj
Hauv Gypsum tshuaj khib, methyl cellulose ether tsuas yog cuam tshuam rau kev ua tau zoo ntawm cov tshuab hauv qab no:
Thickening cov nyhuv: los ntawm kev nce viscosity ntawm cug, tus raug tshem tawm ruaj khov ntawm cug hloov kho.
Dej khaws cia: Los tsim cov qauv network hauv lub tshuaj khib, qhov ploj ntawm cov txheej txheem teeb tsa, li kev txhim kho lub sijhawm thiab cov txheej txheem tawv ntawm cov txheej txheem.
Txhim kho kev tsim kho kev tsim kho: txhim kho kev ua haujlwm ntawm colle, txo ntshav thiab cais tawm, thiab txhim kho adhesion.
3. Cov nyhuv ntawm methyl cellulose ether viscosity ntawm kev ua tau zoo ntawm gypsum tshuaj ntsiav
3.1 nyhuv ntawm lub cev lub cev ntawm gypsum tshuaj khib
Lub viscosity ntawm methyl cellulose ether ncaj qha cuam tshuam rau cov khoom siv lub cev ntawm gypsum tshuaj khib. High-viscosity cellulose cellulose cellulose tuaj yeem txhim kho lub zog los tiv thaiv kev sib xyaw thiab cov dej tsis sib haum thaum ua kom muaj zog.
3.2. Rhuaology
High-viscosity meylosity cellulose ether tuaj yeem ua rau cov qoob loo ntxhov siab thiab cov yas viscosity ntawm gypsum tshuaj khib, ua cov tshuaj khib ua kom muaj zog tiv thaiv cov khoom. Qhov no yog qhov tshwj xeeb tshaj yog rau kev tsim kho ntawm qhov chaw ntsug, uas tuaj yeem txo cov ntws ntawm cug thiab txhim kho cov khoom tsim tau zoo. Txawm li cas los xij, cov viscosity siab dhau yuav ua rau lub tshuaj khib heev thiab tsis yooj yim sua kom ua haujlwm, thiab kev sib npaug yuav tsum tau pom hauv kev tsim kho kev tsim kho.
3.3. Dej ceev
Dej khaws cia yog ib qho tseem ceeb cuam tshuam rau cov txheej txheem tawv ntawm gypsum tshuaj khib. High-viscosity meylosity cellulose Cellulose tuaj yeem txhim kho cov qauv hluav taws xob ua rau cov qauv hluav taws xob tsim, tiv thaiv thaum ntxov tawg los ntawm dej nrawm dhau. Txawm li cas los xij, kev ua kom muaj dej siab dhau yuav ntev txog thaum lub sij hawm thawj zaug thiab zaum kawg ntawm kev tshuaj khib, uas yuav tsum tau hloov kho raws li cov kev thov tshwj xeeb.
3.4. Ntxim Tshuaj Cug Ua Haujlwm
Lub viscosity ntawm methyl cellulose muaj qhov cuam tshuam tseem ceeb rau kev tshuaj ntsuam ntawm gypsum:
3.5. Kev ua haujlwm
Moderate viscirecosity pab txhawm rau txhim kho lub zog ntawm cug, ua rau nws smoother thiab yooj yim rau kev lag luam thaum kev tsim kho. Methyl cellulose ether nrog ntau viscosity yuav nce kev sib txig ntawm cug, txo nws cov kua muag, thiab ua rau nws nyuaj. Hauv kev tsim kho tiag tiag, nws yog ib qho tsim nyog los xaiv methyl cellulose enther nrog tsim nyog viscosity raws li kev tsim kho kom ntseeg tau tias kev ua haujlwm zoo.
3.6. Kua nplaum
Lub viscosity ntawm methyl cellulose ether muaj qhov cuam tshuam tseem ceeb ntawm cov nplaum ntawm cug. High-viscosity meylosity cellulose ether tuaj yeem txhim kho cov nplaum ntawm cov nplaum thiab cov tshuaj tua kab mob ntawm cug. Qhov no yog qhov tshwj xeeb tshaj yog nyob rau hauv ntsug thiab siab-qhov siab tshaj plaws, uas tuaj yeem txo cov khau khiab thiab ziab ntawm cug.
3.7. Ntxim txig rau ntawm Cug Tshuaj Khib Durability
Lub viscosity ntawm methyl cellulose ether kuj cuam tshuam txog kev tshuaj khib gypsum, tshwj xeeb tshaj yog thaum muaj cov xwm txheej ntub dej thiab khov-thaw.
3.8. Lub voj voog qhuav-qhuav
High-viscosity meylosity cellulose cellulose tuaj yeem tsim lub network ruaj khov network, yog li txhim kho lub collp cug qhov tsis kam mus tawg. Nyob rau hauv lub voj voog qhuav-ntub-ntub dej, tshuaj khib nrog viscosity ntau dua tuaj yeem tswj kev ncaj ncees zoo thiab tawg tsis taus.
3.9. Khov-thaw phaum
Nyob rau hauv khov-thaw phaum lub voj voog, cov qauv puv thiab dej ceev ceev ntawm cultad muaj qhov tseem ceeb ntawm nws cov anti-khov. High viscosity meylosity cellulose cellulose cellulose cellulose tuaj yeem txo qhov hws dej hauv lub capillary thiab txo kev tsiv teb tsaws chaw, yog li kev txhim kho lub khov-thaw kev cug.
4. Cov ntawv thov piv txwv thiab cov teebmeem tiag tiag
4.1 Kev ua tau zoo ntawm methyl cellulose muaj kev hais nrog txawv viscosities nyob rau hauv cov ntawv thov tiag tiag
Hauv kev tsim kho, methyl cellulose muaj kev hais txog nrog cov vencosities txawv yog siv nyob rau hauv cov sijhawm sib txawv. Piv txwv li, phab ntsa plastering thiab caulking yuav tsum muaj cov neeg muaj kev pab cuam cellulose uas muaj cov viscosity corcosity los muab cov khoom sib cav zoo dua thiab kev tawm tsam sagging; Thaum pem teb kev qia muag thiab lwm yam kev thov yuav tsum muaj cov neeg muaj kev pab cuam cellulose nrog cov viscosity qis dua kom ntseeg tau zoo.
4.2 Kev Tshawb Xyuas Kev Ntsuas
Cov rooj tiag tiag tau qhia tias kev siv siab viscosity meylosity cellulose neeg muaj kev pab nyob hauv cov txheej txheem phab ntsa tau ntau yam tshuaj cug sagging thiab txhim kho kev ua haujlwm zoo thiab ua tau zoo. Thaum leveling hauv av, xaiv hom nrab cellived cellulos muaj neeg muaj kev ntseeg tuaj yeem txhim kho fellity thiab ua rau cov khoom siv smoother thiab sai dua.
Lub viscosity ntawm methyl cellulose ether muaj qhov cuam tshuam tseem ceeb rau kev ua haujlwm ntawm gypsum tshuaj khib. Siab viscriity meylity cellulose hais pab kom txhim kho cov dej caption, los tiv thaiv cov tshuaj khib, yog li kev txhim kho nws lub cev thiab ua haujlwm. Txawm li cas los xij, kev viscosity dhau yuav ua rau lub tshuaj khib kom muaj kev txo taus thiab ua rau kev tsim kho nyuaj. Yog li ntawd, hauv cov ntawv thov siv, nws yog ib qho tsim nyog los xaiv methyl cellulose nrog qhov tsim nyog viscosity raws li cov kev tsim kom muaj kev tsim kom ua tiav cov nyhuv siv tau zoo tshaj plaws.
Lub Sijhawm Post: Feb-17-2025