Muab faib ua pawg raws li cov neeg hloov pauv,cov cellulose etherstuaj yeem muab faib ua cov ethers ib leeg thiab cov ethers sib xyaw; faib raws li solubility, cellulose ethers tuaj yeem muab faib ua dej-soluble thiab dej-insoluble.
Txoj kev faib tawm tseem ceeb ntawm cellulose ether yog kev faib tawm raws li ionization:
Raws li ionization, cellulose ether tuaj yeem muab faib ua non-ionic, ionic thiab mixed hom.
Cov cellulose ethers uas tsis yog ionic suav nrog hydroxypropyl methyl cellulose, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose thiab hydroxyethyl methylcellulose, uas ethyl cellulose tsis yaj hauv dej.
Ionic cellulose yog sodium carboxymethyl cellulose.
Cov celluloses sib xyaw suav nrog hydroxyethyl carboxymethyl cellulose thiab hydroxypropyl carboxymethyl cellulose.
Lub luag haujlwm ntawm cellulose ether:
Kev tsim kho vaj tse:
Cov tshuaj masonry tuaj yeem khaws dej thiab ua kom tuab, txhim kho kev ua haujlwm, txhim kho cov xwm txheej kev tsim kho, thiab ua kom muaj kev ua haujlwm zoo dua.
Cov tshuaj nplaum rwb thaiv tsev sab nraud tuaj yeem ua rau lub peev xwm khaws dej ntawm cov tshuaj nplaum nce ntxiv, txhim kho kev ntws thiab kev tsim kho, txhim kho lub zog pib ntawm cov tshuaj nplaum thiab zam kev tawg.
Cov tshuaj nplaum pob zeb tuaj yeem txhim kho lub peev xwm tiv thaiv kev poob qis ntawm cov tshuaj nplaum pob zeb, txhim kho lub zog sib txuas thaum ntxov ntawm cov tshuaj nplaum, thiab tiv taus lub zog txiav muaj zog kom tiv thaiv cov vuas kom tsis txhob plam.
Cov tshuaj mortar uas nws tus kheej leveling, uas tuaj yeem txhim kho qhov fluidity thiab anti-settling kev ua tau zoo ntawm cov tshuaj mortar, thiab pab txhawb kev tsim kho.
Cov tshuaj pleev xim uas tiv taus dej, tuaj yeem hloov cov kua nplaum lag luam ib txwm muaj, txhim kho kev khaws cia dej, viscosity, txhuam tsis kam thiab lo rau ntawm cov tshuaj pleev xim, thiab tshem tawm qhov txaus ntshai ntawm formaldehyde.
Gypsum mortar tuaj yeem txhim kho thickening, dej khaws cia thiab retardation.
Cov xim latex, tuaj yeem ua kom tuab, tiv thaiv cov xim gelation, pab cov xim dispersion, txhim kho qhov ruaj khov thiab viscosity ntawm latex, thiab pab txhawb kev ua haujlwm ntawm kev tsim kho.
PVC, tuaj yeem ua haujlwm ua tus dispersant, kho qhov ceev ntawm PVC resin, txhim kho resin thermal stability thiab tswj cov khoom me me, txhim kho cov khoom pom tseeb, cov yam ntxwv ntawm cov khoom me me thiab yaj rheology ntawm PVC resin khoom.
Cov khoom siv ua los ntawm cov khoom siv av nplaum, tuaj yeem siv ua cov khoom sib txuas rau cov khoom siv av nplaum, uas tuaj yeem ncua, tshem tawm, thiab khaws cov dej, ua rau lub zog ntawm cov khoom siv av nplaum nyoos nce ntxiv, txo qhov qhuav ntawm cov khoom siv av nplaum, thiab ua rau lub cev embryo thiab cov khoom siv av nplaum sib txuas ruaj khov thiab tsis yooj yim poob tawm.
Kev kho mob teb:
Cov kev npaj tso tawm uas ruaj khov thiab tswj tau tuaj yeem ua tiav cov txiaj ntsig ntawm kev tso tawm tshuaj qeeb thiab ruaj khov los ntawm kev ua cov ntaub ntawv pob txha, yog li ua kom lub sijhawm ua haujlwm ntawm cov tshuaj ntev dua.
Cov tshuaj ntsiav zaub, ua rau lawv gel thiab zaj duab xis-tsim, zam kev sib txuas thiab kev kho cov tshuaj tiv thaiv.
Kev txheej tshuaj ntsiav, yog li nws tau txheej rau ntawm lub ntsiav tshuaj uas tau npaj tseg kom ua tiav cov hom phiaj hauv qab no: los tiv thaiv kev puas tsuaj ntawm cov tshuaj los ntawm cov pa oxygen lossis cov dej noo hauv huab cua; los muab cov hom kev tso tawm ntawm cov tshuaj tom qab kev tswj hwm; los npog cov ntxhiab tsw phem lossis ntxhiab tsw ntawm cov tshuaj lossis los txhim kho qhov zoo li.
Cov neeg sawv cev ncua, uas txo qhov ceev ntawm cov tshuaj hauv cov khoom me me los ntawm kev ua kom viscosity nce ntxiv.
Cov khoom siv khi rau ntsiav tshuaj yog siv thaum lub sijhawm granulation los ua kom muaj kev sib txuas ntawm cov hmoov me me.
Cov tshuaj tua kab mob hauv ntsiav tshuaj, uas tuaj yeem ua rau cov khoom noj tawg ua tej daim me me hauv cov khoom noj khov kho kom nws yooj yim tawg lossis yaj.
Thaj chaw ua zaub mov:
Cov khoom qab zib ntxiv, tuaj yeem txhim kho qhov saj, cov qauv thiab cov qauv; tswj kev tsim cov dej khov ua los ntawm cov pob zeb; ua kom tuab; tiv thaiv kev poob dej noo ntawm cov zaub mov; tsis txhob txhaws.
cov tshuaj ntxiv rau cov khoom qab zib, tuaj yeem ua kom tuab; ua rau kom cov kua ntses nplaum thiab saj ntev dua; pab kom tuab thiab zoo nkauj.
Cov khoom ntxiv rau dej haus feem ntau siv cov non-ionic cellulose ether, uas tuaj yeem sib xws nrog cov dej haus; pab kom ncua; ua kom tuab, thiab yuav tsis npog cov saj ntawm cov dej haus.
Cov khoom noj khoom haus ntxiv rau kev ci, tuaj yeem txhim kho cov qauv; txo cov roj nqus; tiv thaiv cov khoom noj khoom haus poob dej; ua rau nws crispy dua, thiab ua rau cov qauv nto thiab xim sib xws dua; qhov nplaum zoo dua ntawmcellulose ethertuaj yeem txhim kho lub zog, elasticity thiab elasticity ntawm cov khoom hmoov nplej saj.
Nyem cov khoom noj khoom haus kom txo tau cov hmoov av; txhim kho cov qauv thiab saj.
Lub sijhawm tshaj tawm: Plaub Hlis-28-2024