Cov tshuaj mortar uas nws tus kheej leveling siv tau nws qhov hnyav los ua lub hauv paus tiaj tus, du thiab muaj zog rau ntawm lub substrate rau kev tso lossis sib txuas lwm yam khoom. Tib lub sijhawm, nws tuaj yeem ua tiav kev tsim kho loj thiab ua haujlwm tau zoo. Yog li ntawd, qhov dej ntws siab yog ib qho tseem ceeb heev ntawm cov tshuaj mortar uas nws tus kheej leveling. Tsis tas li ntawd, nws yuav tsum muaj qee qhov kev tuav dej thiab lub zog sib txuas, tsis muaj qhov tshwm sim ntawm kev sib cais dej, thiab muaj cov yam ntxwv ntawm kev rwb thaiv tsev kub thiab qhov kub qis.
Feem ntau, cov tshuaj mortar uas nws tus kheej leveling yuav tsum tau fluidity zoo. Cellulose ether yog ib qho tseem ceeb additive ntawm cov tshuaj mortar uas twb sib xyaw lawm. Txawm hais tias qhov ntau ntxiv yog tsawg heev, nws tuaj yeem txhim kho qhov kev ua tau zoo ntawm cov tshuaj mortar. Nws tuaj yeem txhim kho qhov sib xws, kev ua haujlwm thiab kev sib txuas ntawm cov tshuaj mortar, kev ua tau zoo thiab kev khaws dej. Nws ua lub luag haujlwm tseem ceeb heev hauv kev ua cov tshuaj mortar uas twb sib xyaw lawm.
Cellulose ether muaj feem cuam tshuam tseem ceeb rau kev khaws dej, kev sib xws thiab kev ua haujlwm ntawm cov tshuaj mortar uas nws tus kheej ua. Tshwj xeeb tshaj yog raws li cov tshuaj mortar uas nws tus kheej ua, kev ntws yog ib qho ntawm cov cim tseem ceeb rau kev ntsuam xyuas kev ua haujlwm ntawm nws tus kheej ua. Raws li lub hauv paus ntawm kev ua kom muaj cov khoom sib xyaw zoo li qub, kev ntws ntawm cov tshuaj mortar tuaj yeem hloov kho los ntawm kev hloov pauv qhov ntau ntawm cellulose ether. Txawm li cas los xij, yog tias qhov koob tshuaj ntau dhau, qhov kev ntws ntawm cov tshuaj mortar yuav raug txo qis, yog li qhov koob tshuaj ntawm cellulose ether yuav tsum tau tswj hwm hauv qhov ntau thiab tsawg tsim nyog.
Qhov kev khaws dej ntawm cov mortar yog ib qho tseem ceeb uas ntsuas qhov ruaj khov ntawm cov khoom sab hauv ntawm cov cement mortar tshiab. Yuav kom ua tiav qhov kev ua kom cov dej ntawm cov khoom gel, ib qho cellulose ether tsim nyog tuaj yeem tswj cov dej noo hauv cov mortar ntev. Feem ntau hais lus, qhov ceev ntawm cov slurry khaws dej nce ntxiv nrog rau qhov nce ntawm cov cellulose ether cov ntsiab lus. Qhov cuam tshuam ntawm kev khaws dej ntawm cellulose ether tuaj yeem tiv thaiv cov substrate los ntawm kev nqus dej ntau dhau sai dhau, thiab cuam tshuam kev ua kom dej evaporation, yog li xyuas kom meej tias qhov chaw slurry muab dej txaus rau cement hydration. Tsis tas li ntawd, qhov viscosity ntawm cellulose ether kuj muaj kev cuam tshuam loj rau qhov kev khaws dej ntawm mortar. Qhov siab dua qhov viscosity, qhov zoo dua qhov kev khaws dej. Feem ntau, cellulose ether nrog viscosity ntawm 400mpa.s feem ntau yog siv rau hauv cov mortar tus kheej, uas tuaj yeem txhim kho qhov kev ua tau zoo ntawm cov mortar thiab ua kom cov mortar compactness.
Lub sijhawm tshaj tawm: Lub Peb Hlis-20-2023