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Cov khib nyiab ntub dej yog hais txog cov khoom siv cementitious, nplua aggregate, admixture, dej thiab ntau yam khoom txiav txim siab raws li kev ua tau zoo. Raws li ib qho kev faib ua feem, tom qab ntsuas thiab sib xyaw hauv qhov chaw sib tov, nws raug thauj mus rau qhov chaw siv los ntawm lub tsheb sib tov. Khaws cov ...Nyeem ntxiv»
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Cov hom admixtures feem ntau siv hauv tsev qhuav-sib xyaw mortar, lawv cov yam ntxwv ntawm kev ua haujlwm, kev ua haujlwm, thiab lawv lub zog ntawm kev ua haujlwm ntawm cov khoom siv khib nyiab qhuav. Kev txhim kho cov nyhuv ntawm cov dej khaws cia xws li cellulose ether thiab starch ether, redispersible ...Nyeem ntxiv»
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Nrog rau kev nce qib ntawm kev lag luam thiab kev txhim kho thev naus laus zis, los ntawm kev qhia thiab kev txhim kho ntawm txawv teb chaws mortar spraying tshuab, cov tshuab txau thiab plastering tshuab tau tsim zoo heev hauv kuv lub teb chaws hauv xyoo tas los no. Mechanical spraying mortar yog d...Nyeem ntxiv»
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1. Cov tshuaj txhua hnub qib hydroxypropyl methylcellulose instant hom yog cov hmoov dawb los yog daj me ntsis, thiab nws tsis muaj ntxhiab, saj thiab tsis muaj tshuaj lom. Nws tuaj yeem yaj hauv dej txias thiab sib xyaw hnyav ntawm cov organic teeb meem los tsim cov kua nplaum pob tshab. Cov kua dej aqueous muaj qhov chaw ...Nyeem ntxiv»
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Hydroxyethyl cellulose (HEC) yog xim dawb los yog lub teeb daj, tsis muaj ntxhiab, tsis muaj tshuaj lom fiber ntau lossis hmoov hmoov. Nws yog ua los ntawm cov paj rwb nyoos linters los yog refined pulp soaked nyob rau hauv 30% kua caustic soda. Tom qab ib nrab teev, nws raug tshem tawm thiab nias. Nyem kom txog thaum qhov sib piv ntawm alkaline dej nce mus txog 1: 2.8, ces ...Nyeem ntxiv»
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1. Dab tsi yog lub luag haujlwm ntawm redispersible latex hmoov hauv mortar? Teb: Lub redispersible latex hmoov yog molded tom qab dispersion thiab ua raws li ib tug thib ob nplaum los txhim kho daim ntawv cog lus; Cov kev tiv thaiv colloid yog absorbed los ntawm lub mortar system (nws yuav tsis tau hais tias yuav tsum tau puas tom qab molded. Los yog dis ...Nyeem ntxiv»
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Cov khoom sib xyaw ntub dej yog cov cement, nplua aggregate, admixture, dej thiab ntau yam khoom txiav txim siab raws li kev ua tau zoo. Raws li ib qho kev faib ua feem, tom qab ntsuas thiab sib xyaw hauv qhov chaw sib xyaw, nws raug thauj mus rau qhov chaw siv los ntawm lub tsheb sib tov, thiab muab tso rau hauv qhov tshwj xeeb ntub dej ...Nyeem ntxiv»
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Admixtures ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm ntawm lub tsev qhuav-sib xyaw mortar, tab sis qhov sib ntxiv ntawm cov tshuaj khib nyiab qhuav ua rau cov khoom siv ntawm cov khoom siv khib nyiab qhuav ntau dua li cov tshuaj mortar, uas suav txog ntau dua 40% ntawm cov khoom raug nqi nyob rau hauv qhuav-mixed ...Nyeem ntxiv»
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Hydroxypropyl methylcellulose yog tsim los ntawm cov paj rwb ntshiab heev cellulose los ntawm tshwj xeeb etherification nyob rau hauv alkaline tej yam kev mob, thiab tag nrho cov txheej txheem yog tiav nyob rau hauv tsis siv neeg xyuas. Nws yog insoluble nyob rau hauv ether, acetone thiab kiag li ethanol, thiab swells rau hauv ib tug ntshiab los yog me ntsis cloudy collo...Nyeem ntxiv»
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Ib qho nyiaj ntawm hydroxypropyl methylcellulose ether khaws cov dej hauv cov mortar rau lub sijhawm txaus los txhawb cov dej tsis tu ncua ntawm cov cement thiab txhim kho cov adhesion ntawm cov tshuaj khib thiab cov substrate. Cov nyhuv ntawm Particle loj thiab sib tov lub sij hawm ntawm Hydroxypropyl Methyl Cellulose Ether ...Nyeem ntxiv»
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Cellulose ether yog ib yam ntawm cov khoom siv ntuj tsim los ntawm polymer, uas muaj cov yam ntxwv ntawm emulsification thiab ncua kev kawm ntawv. Ntawm ntau hom, HPMC yog ib qho uas muaj qhov tso zis ntau tshaj plaws thiab siv dav tshaj plaws, thiab nws cov zis tau nce sai. Nyob rau hauv xyoo tas los no, ua tsaug rau kev loj hlob ntawm ...Nyeem ntxiv»
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Hydroxypropyl methylcellulose (HPMC) yog ib qho uas tsis yog-ionic cellulose ether ua los ntawm ntuj polymer khoom cellulose los ntawm ntau cov txheej txheem tshuaj. Lawv yog cov tsis muaj ntxhiab, tsis qab thiab tsis muaj kuab paug dawb hmoov uas swells mus rau hauv ib qho ntshiab los yog me ntsis cloudy colloidal tov nyob rau hauv dej txias. Nws muaj t...Nyeem ntxiv»