Hydroxypropyl methylcelluloseFeem ntau siv rau hauv ntau yam lag luam. Txawm hais tias muaj ntau tus neeg tsis nkag siab nws zoo heev, nws cuam tshuam rau ntau yam lag luam. Hauv kev tsim kho ntawm kev lag luam kev tsim kho, nws feem ntau yog siv rau kev tsim phab ntsa thiab kho kom zoo nkauj stucco, Caulking thiab lwm yam kev tsim kho tshuab, tshwj xeeb tshaj yog hauv kev tsim kho kom zoo nkauj, nws feem ntau siv rau tiling, marble, thiab qee cov khoom siv yas. Nws muaj qib siab ntawm kev nplaum thiab tuaj yeem txo qhov ntau ntawm cov cement siv. Nws yog siv rau hauv kev lag luam txheej, feem ntau siv ua cov khoom ua kom tuab, tuaj yeem ua rau txheej zoo thiab ci, tsis yooj yim tshem tawm cov hmoov, txhim kho kev ua tau zoo, thiab lwm yam, tshwj xeeb tshaj yog rau daim ntawv thov hauv kev tsim kho tus kheej mortar.
Qhov khoom plig xuab zeb uas ua rau nws tus kheej zoo tshaj plaws yog cov khoom siv sib xyaw qhuav tshwj xeeb nrog kev ua kom tiaj tus thiab kev sib zog ua kom tiaj tus. Nws cov peev xwm ua kom tiaj tus thiab kev sib zog ua kom tiaj tus yog qhov tseem ceeb heev rau kev ua tiav cov txheej av du thiab du. Rau cov khoom siv ua kom tiaj tus zoo, ua ntej nws yuav tsum muaj kev ua haujlwm zoo, thiab yuav tsum tswj tau nws qhov kev ua kom tiaj tus tag nrho thiab kev kho nws tus kheej hauv lub sijhawm tsim kho. Ua li no, qhov no yuav tsum tau kom cov xuab zeb ua kom nws ruaj khov thiab sib npaug hauv lub sijhawm no. Qhov thib ob, cov xuab zeb yuav tsum muaj lub zog tshwj xeeb, uas suav nrog lub peev xwm dais thiab lub zog sib txuas rau qhov chaw hauv paus. Cov no yog cov xwm txheej yooj yim rau kev siv cov ntaub ntawv ua kom tiaj tus, thiab kev paub txog cov khoom no ntawm kev ua kom tiaj tus yuav tsum tau hydroxypropyl ntxiv rau methyl cellulose ether tuaj yeem ua kom tiaj tus thiab ua rau viscosity ntau ntxiv, thiab kuj muaj cov yam ntxwv ntawm kev khaws dej siab thiab ua kom ntev lub sijhawm tsim kho.
Qhov viscosity ntawm hydroxypropyl methylcellulose siab dua, qhov viscosity zoo dua ntawm cov khoom siv cement hloov kho, tab sis yog tias viscosity siab dhau, nws yuav cuam tshuam rau qhov fluidity thiab kev ua haujlwm ntawm cov khoom. Tsis tas li ntawd, qhov thickening effect ntawm hydroxypropyl methylcellulose kuj tseem tuaj yeem ua rau kom muaj dej ntau ntxiv ntawm cov khoom siv cement, yog li ua rau cov mortar ntau ntxiv. Cov mortar uas tau leveled thiab cov pob zeb uas tau compacted, uas xav tau fluidity siab, xav tau viscosity qis ntawm hydroxypropyl methylcellulose. Cov cellulose ether uas muaj viscosity qis tuaj yeem ua rau muaj kev cuam tshuam zoo, tiv thaiv cov slurry los ntawm kev poob, thiab tseem muaj kev ua haujlwm los ntshav, uas tuaj yeem ua kom ntseeg tau tias nws yuav tsis cuam tshuam rau qhov ntws ntawm cov khoom siv mortar uas tau leveled, yooj yim rau kev tsim kho, thiab muaj kev khaws cia dej siab Cov yam ntxwv tuaj yeem ua rau qhov cuam tshuam ntawm qhov chaw tom qab leveling zoo dua, txo qhov shrinkage ntawm mortar, thiab zam kev tawg thiab lwm yam.
Hydroxypropyl methylcellulose siv dav hauv ntau yam khoom siv hauv tsev. Thaum siv rau hauv cov tshuaj mortar uas nws tus kheej leveling, nws muaj cov yam ntxwv hauv qab no:
1. Kev ua tau zoo ntawm kev khaws dej siab tuaj yeem ua rau lub sijhawm ua haujlwm ntawm cov mortar uas nws tus kheej leveling ntev dua, txhim kho qhov ruaj khov ntawm cov mortar, ua rau nws lub zog sib txuas ntxiv, thiab kev ua tau zoo heev ntawm kev sib txuas ntub dej tuaj yeem txo cov tshauv tsaws.
2. Kev sib raug zoo muaj zog, tsim nyog rau txhua yam khoom siv hauv tsev, cov tshuaj nplaum uas nws tus kheej ua kom tiaj tus, txo lub sijhawm poob dej, txo nws qhov kev qhuav sai, thiab zam kev teeb meem xws li kev tawg thiab kev ntaus ntawm phab ntsa thiab pem teb.
3. Tiv thaiv kom tsis txhob los ntshav, nws tuaj yeem ua lub luag haujlwm zoo dua hauv kev ncua, tiv thaiv cov slurry los ntawm kev tso dej thiab kev ua haujlwm zoo dua.
4. Tswj kev ua haujlwm zoo, qhov viscosity qis ntawmhydroxypropyl methylcelluloseyuav tsis cuam tshuam rau qhov ntws ntawm cov slurry, yooj yim tsim kho, tshwj xeeb zoo dej tuav kev ua tau zoo, tuaj yeem tsim cov nyhuv zoo tom qab tus kheej-leveling, thiab zam kev tawg hauv cov ntaub ntawv ntawm cov nruas, qhov kev ua tau zoo ruaj khov ntawm cellulose ether tag nrho lav qhov zoo fluidity thiab tus kheej-leveling muaj peev xwm. Kev tswj hwm tus nqi tuav dej tuaj yeem ua rau nws khov sai thiab txo qhov shrinkage thiab tawg.
Lub sijhawm tshaj tawm: Plaub Hlis-28-2024