Nyob rau hauv cov ntawv sib xyaw ntawm cov hmoov av hmoov,Cellulose etheryog ib qho tseem ceeb ntxiv nrog tus nqi qis, tab sis nws tuaj yeem txhim kho cov kev sib xyaw thiab kev tsim kho ntawm cug. Txhawm rau muab nws yooj yim, yuav luag txhua qhov ntub sib xyaw cov khoom ntawm cug vuag uas tuaj yeem pom nrog lub qhov muag liab qab yog muab los ntawm cellulose ether. Nws yog lub cellulose derivative tau los ntawm kev siv cellulose los ntawm cov ntoo thiab paj rwb, reacting nrog caustic dej qab zib, thiab tom qab ntawd etherming tus neeg sawv cev.
Hom ntawm cov cellulose neeg muaj kev pab
A. HydroxyPropylropy Cellulose (HPMC), uas yog feem ntau ua los ntawm high-purity refined refined refined cov ntaub ntawv raw, yog tshwj xeeb heev rau hauv cov xwm txheej alkaline.
B. Hydroxyether Metthylcellulose (Hemc), tsis muaj-ionic cellulose ithere, yog dawb hmoov nyob rau hauv tsos tshuaj ntsuab, tsw ntxhiab tsw, tsw.
C. Hydroxyethyl cellulose (HEC), tsis yog-ionic surfactant, dawb nyob rau hauv tsos, tsis muaj ntxhiab, qab zib thiab dej yooj yim.
Qhov saum toj no yog cov tsis muaj kev hais txog kev ua haujlwm ntawm Ionic, thiab Ionic cellulose muaj kev hais kom lwm tus (xws li Carboxymethyl cellulose cmc).
Thaum siv cov hmoov av qhuav, vim ionic cellulose (CMC) tsis ruaj khov nyob rau hauv lub xub ntiag nrog cement thiab slaked txiv qaub ua cov ntaub ntawv cementing. Hauv qee qhov chaw nyob hauv Suav teb, qee qhov sab hauv phab ntsa putties ua tiav nrog cov khoom siv cementing thiab shuangfei hmoov zoo li tus muab tub lim siv Siv CMC raws li cov tuab. Txawm li cas los xij, vim tias cov khoom lag luam no yog qhov tsis txaus ntseeg thiab tsis tiv taus dej rau, nws tau maj mam tshem tawm los ntawm kev ua lag luam. Tam sim no, lub cellulose ether tsuas yog siv nyob rau hauv Suav teb yog HPMC.
Cellulose ether yog tsuas yog siv los ua dej cia sawv cev tus neeg saib xyuas thiab cov tuab tuab hauv cov khoom noj ua ke
Nws cov dej khaws cia muaj nuj nqi tuaj yeem tiv thaiv cov txheej txheem ntawm cov dej ntau dhau thiab ua kom pom tseeb tias cov xis mas muaj dej txaus thaum nws yog hydrated. Nqa cov kev lag luam plastering ua piv txwv. Thaum zoo tib yam CEMENT SLURRY tau thov rau hauv paus nto, cov hmoov av qhuav yuav yooj yim nqus cov txheej uas yuav tsum tau yooj yim rau kev haus dej. , yog li tsis tsuas yog tsis tuaj yeem tsim cov cement gel nrog rau saum npoo av, tab sis nws kuj tseem ceeb rau saum npoo xis maj mam poob. Thaum cov grout thov yog nyias, nws tseem yooj yim rau daim ntawv tawg hauv tag nrho cov grout. Yog li ntawd, yav dhau los ua haujlwm plastering thawj zaug, dej feem ntau yog siv los ntub cov txheej txheem ua ntej, tab sis kev ua haujlwm tsis zoo, tab sis kuj ua haujlwm tsis yooj yim los tswj.
Feem ntau hais lus, cov dej khaws cia ntawm cov xis mas slurry nce nrog kev nce ntawm cov ntsiab lus ntawm cellulose ether. Qhov ntau dua lub viscosity ntawm cov neeg ntxiv cellulose ether, qhov zoo dua cov dej khaws cia.
Ntxiv rau cov dej khaws cia thiab ua tuab, cellulose ether kuj cuam tshuam lwm cov khoom ntawm xis, entraining cua, thiab ua kom muaj zog ntxiv. Cellulose ether sawb rau hauv cov txheej txheem teeb tsa thiab cov txheej txheem nyuaj ntawm cov cement, yog li muaj lub sijhawm ua haujlwm ntev. Yog li ntawd, nws qee zaum siv los ua cov sib koom ua ke.
Nrog rau kev txhim kho cov tshuaj khib nyiab sib xyaw ua ke,Cellulose ethertau dhau los ua cleascture. Txawm li cas los xij, muaj ntau ntau yam thiab specifications ntawm cellulose ether, thiab qhov zoo ntawm cov batches tseem hloov.
Lub Sijhawm Post: Apr-25-2024