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Cov tshuaj ntub-sib xyaw ua ke hais txog cov khoom siv cov khoom siv, zoo sib xyaw, admixture, cov khoom siv sib txawv raws li kev ua tau zoo. Raws li ib qho kev faib ua feem, tom qab ntsuas thiab sib xyaw ua ke hauv qhov chaw nres tsheb sib xyaw, nws tau thauj mus rau qhov chaw ntawm kev siv los ntawm lub tsheb tov khoom. Khaws lub ...Nyeem ntxiv»
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Cov hom lus ntawm admixtures feem ntau siv hauv kev sib xyaw ua ke qhuav, cov tshuab ntawm kev ua, thiab lawv cov cawv ntawm kev ua tau zoo ntawm cov khoom siv chlu. Cov kev txhim kho cov nyhuv ntawm cov dej-tswj cov neeg sawv cev xws li cellulose ether thiab starch ether, refispersible ...Nyeem ntxiv»
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Nrog kev nce qib txuas ntxiv ntawm kev lag luam thiab kev txhim kho thev naus laus zis, los ntawm kev ua kom zoo nkauj thiab cov tshuab nqus tshuaj tau tsim kho hauv kuv lub tebchaws tsis ntev los no. Neeg kho tshuab txau kab kab sib xyaw d ...Nyeem ntxiv»
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1. Txhua tus tshuaj lom neeg hydroxypropylulose tam sim no yog cov xim dawb lossis me ntsis daj, thiab nws tsis muaj ntxhiab thiab tsis muaj tshuaj lom. Nws tuaj yeem yaj nyob rau hauv dej txias thiab sib xyaw cov kuab tshuaj ntawm cov organic teeb meem los tsim cov tshuaj pleev pob tshab. Cov kua aqueous tau muaj saum npoo ...Nyeem ntxiv»
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Hydroxyethyl cellulose (HEC) yog xim daj lossis lub teeb daj, tsw ntxhiab, tsis muaj tshuaj lom lossis hmoov tsis zoo. Nws yog ua los ntawm cov paj rwb nyoos los yog ua kom zoo rau hauv 30% ua kua caustic dej qab zib. Tom qab ib nrab ib teev, nws tau tawm thiab nias. Nyem kom txog thaum qhov sib piv ntawm cov dej alkaline nce mus txog 1: 2.8, tom qab ntawd ...Nyeem ntxiv»
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1. Dab tsi yog cov haujlwm ntawm redispersible looj tshuaj cug? Teb: Redispersible looj cov hmoov yog pwm tom qab dispersion thiab ua raws li cov nplaum thib ob los txhim kho txoj kev sib khi; Cov kev tiv thaiv coloid yog nqus los ntawm cov kab tshuaj khib nyiab (nws yuav tsis raug hais tias yuav raug puas tsuaj tom qab pwm. lossis Dis ...Nyeem ntxiv»
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Kev ntub dej sib xyaw ua ke yog cov cement, zoo sib xyaw ua ke, admixature, dej thiab ntau yam kev txiav txim siab raws li kev ua tau zoo. Raws li ib qho kev faib ua feem, tom qab ntsuas thiab sib xyaw ua ke hauv qhov chaw nres tsheb sib xyaw, nws tau thauj mus rau qhov chaw siv los ntawm lub tsheb tov khoom, thiab muab tso rau hauv tshwj xeeb ntub ...Nyeem ntxiv»
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Admixtures ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov tshuaj khib nyiab qhuav, tab sis ntxiv cov khoom siv tshuaj khib nyiab ntau dua li 40% ntawm Cov khoom raug nqi hauv cov khoom sib xyaw qhuav ...Nyeem ntxiv»
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HydroxyPropyyl methylulose yog tsim los ntawm cov paj rwb cellulose muaj los ntawm Alkaline cov xwm txheej tshwj xeeb, thiab tag nrho cov txheej txheem tiav nyob rau hauv ib lub chaw soj ntsuam. Nws yog insoluble hauv ether, acetone thiab abus ethanol, thiab swells mus rau hauv ib tug ntshiab los yog me ntsis collo ...Nyeem ntxiv»
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Ib qho nyiaj ntawm hydroxypropyl xaiv ether khaws cov dej hauv lub tshuaj nrum rau cov xis nyob ntawm cov nplaum thiab txhim kho cov nplaum ntawm lub tshuaj khib thiab txheej. Cov nyhuv ntawm particle loj thiab sib tov sijhawm ntawm hydroxypropyl methyl cellulose ether ...Nyeem ntxiv»
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Cellulose ether yog hom ntawm ntuj ntuj polymer muab cov khoom siv polymer uas muaj, uas muaj cov yam ntxwv ntawm emulsification thiab raug ncua. Ntawm ntau hom, HPMC yog ib qho nrog cov zis ntau tshaj plaws thiab cov feem ntau siv, thiab nws cov txiaj ntsig tau nce zuj zus. Nyob rau hauv xyoo tsis ntev los no, ua tsaug rau txoj kev loj hlob ntawm ...Nyeem ntxiv»
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HydroxyPropyyl methylcellose (HPMC) yog cov tsis-ionic cellulose ither ua los ntawm cov txheej txheem polymer los ntawm cov txheej txheem polymer los ntawm cov txheej txheem polymer los ntawm cov txheej txheem ntawm cov txheej txheem. Lawv yog cov ntxhiab tsw, tsis muaj qab hau thiab cov hmoov dawb dawb uas swed mus rau hauv qhov tseeb lossis me ntsis pos huab colloidal tov hauv dej txias. Nws muaj t ...Nyeem ntxiv»