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Cellulose ether hpmc muaj lub luag haujlwm ntawm kev khaws dej thiab thickening hauv cement mortar thiab gypsum-based mortar, uas tuaj yeem txhim kho qhov adhesion thiab ntsug tsis kam ntawm cov ntaub ntawv mortar. Cov yam ntxwv xws li roj kub, kub thiab cua siab muaj qhov cuam tshuam tsis zoo rau ...Nyeem ntxiv»
- Cov khoom siv lub cev thiab cov txheej txheem tsim kho ntawm cellulose rau kev tsim kho yog dab tsi?
Cellulose rau kev tsim kho yog ib qho khoom siv ntxiv uas siv rau hauv kev tsim kho. Cellulose rau kev tsim kho feem ntau yog siv rau hauv cov hmoov qhuav. Kev ntxiv cellulose ether tsawg heev, tab sis nws tuaj yeem txhim kho kev ua tau zoo ntawm cov hmoov ntub thiab cuam tshuam rau kev tsim kho ntawm cov hmoov. Zoo meej...Nyeem ntxiv»
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Tam sim no, qhov zoo ntawm cov hydroxypropyl methylcellulose hauv tsev sib txawv heev, thiab tus nqi sib txawv heev, ua rau nws nyuaj rau cov neeg siv khoom xaiv qhov yog. Lub HPMC hloov kho ntawm tib lub tuam txhab txawv teb chaws yog qhov tshwm sim ntawm ntau xyoo ntawm kev tshawb fawb. Kev ntxiv cov tshuaj lom neeg tuaj yeem ua rau kuv ...Nyeem ntxiv»
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Cov tshuaj sib xyaw ua ke uas tsis tob, uas ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua tau zoo ntawm kev tsim cov tshuaj sib xyaw qhuav, suav txog ntau dua 40% ntawm cov nqi khoom siv hauv cov tshuaj sib xyaw qhuav. Feem ntau ntawm cov tshuaj sib xyaw hauv kev lag luam hauv tsev yog muab los ntawm cov chaw tsim khoom txawv teb chaws, thiab cov koob tshuaj siv ntawm cov khoom...Nyeem ntxiv»
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Tus nqi ntawm HPMC siv rau hauv kev siv ua haujlwm sib txawv nyob ntawm huab cua, kub, zoo ntawm cov hmoov calcium tshauv hauv zos, cov mis ntawm cov hmoov putty thiab "zoo uas cov neeg siv khoom xav tau". Feem ntau hais lus, nws yog ntawm 4 kg thiab 5 kg. Piv txwv li: feem ntau ntawm cov hmoov putty hauv B...Nyeem ntxiv»
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Ib qho ntawm qhov sib txawv loj tshaj plaws ntawm cov tshuaj khib qhuav thiab cov tshuaj khib ib txwm muaj yog tias cov tshuaj khib qhuav raug hloov kho nrog me ntsis cov tshuaj ntxiv. Ntxiv ib qho khoom ntxiv rau cov tshuaj khib hmoov qhuav hu ua kev hloov kho thawj zaug, ntxiv ob lossis ntau cov khoom ntxiv hu ua kev hloov kho thib ob...Nyeem ntxiv»
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Cov roj gypsum desulfurization yog cov roj flue uas tsim los ntawm kev sib xyaw ntawm cov roj sulfur uas muaj cov roj (thee, roj av), cov khib nyiab khov kho uas tsim tawm thaum lub sijhawm desulfurization purification, thiab cov gypsum hemihydrate (tshuaj mis CaSO4 · 0.5H2O), qhov kev ua tau zoo sib xws rau na...Nyeem ntxiv»
- Cov nyhuv ntawm hydroxypropyl methyl cellulose ether (hpmc) ntawm lub peev xwm khaws dej ntawm hmoov
Hydroxypropyl methylcellulose (HPMC) feem ntau ua lub luag haujlwm ntawm kev khaws dej, ua kom tuab thiab txhim kho kev ua haujlwm ntawm kev tsim kho hauv cov cement, gypsum thiab lwm yam khoom siv hmoov. Kev ua tau zoo heev ntawm kev khaws dej tuaj yeem tiv thaiv cov hmoov kom tsis txhob qhuav thiab tawg vim muaj dej ntau dhau.Nyeem ntxiv»
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Nyob rau hauv xyoo tas los no, nrog rau kev txhim kho tas mus li ntawm cov thev naus laus zis rwb thaiv tsev phab ntsa sab nraud, kev nce qib tas mus li ntawm cov thev naus laus zis tsim cellulose, thiab cov yam ntxwv zoo ntawm HPMC nws tus kheej, HPMC tau siv dav hauv kev lag luam kev tsim kho. Txhawm rau tshawb nrhiav ntxiv txog cov txheej txheem ...Nyeem ntxiv»
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Lub npe Suav ntawm HPMC yog hydroxypropyl methylcellulose. Nws yog non-ionic thiab feem ntau siv ua tus neeg sawv cev khaws dej hauv cov mortar qhuav. Nws yog cov khoom siv khaws dej feem ntau siv hauv mortar. Cov txheej txheem ntau lawm ntawm HPMC feem ntau yog cov khoom polysaccharide-based ether tsim los ntawm ib qho ...Nyeem ntxiv»
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1. Cov teeb meem tshwm sim hauv cov hmoov putty Kev ziab sai yog vim muaj ntau npaum li cas ntawm cov hmoov calcium uas tau ntxiv (loj dhau, qhov ntau ntawm cov hmoov calcium uas siv rau hauv cov mis putty tuaj yeem txo qis) yog cuam tshuam nrog tus nqi khaws dej ntawm cov fiber, thiab nws kuj cuam tshuam nrog qhov qhuav ntawm ...Nyeem ntxiv»
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Hauv cov mortar sib xyaw ua ke, tsuav yog me ntsis cellulose ether tuaj yeem txhim kho kev ua tau zoo ntawm cov mortar ntub, nws tuaj yeem pom tias cellulose ether yog cov khoom siv tseem ceeb uas cuam tshuam rau kev ua tau zoo ntawm mortar. Kev xaiv ntawm ntau hom sib txawv, ntau viscosities, ntau pa ...Nyeem ntxiv»