HPMC Cellulose Ether

HPMC cellulose ether

Hydroxypropyl methyl cellulose (HPMC) yog cov khoom siv roj ntsha ua cov khoom siv ua cov khoom siv raw khoom, dhau los ntawm cov txheej txheem tshuaj lom neeg thiab npaj cov non-ionic cellulose. Nws muaj yuav luag methyl cellulose (MC) ntawm txhua qhov kev ua tau zoo, koj qhov kev xaiv thib ib rau kev tsim cov khoom zoo siab rau cov khoom sib txuas. Yuav kom ua tau raws li cov kev xav tau ntawm kev tiv thaiv ib puag ncig, Peb cov khoom lag luam nrog dej siab, kev faib tawm, zoo nkauj, muaj peev xwm ua haujlwm tau yooj yim, muaj cov yam ntxwv yooj yim rau kev cuam tshuam.Qhov haum rau lub tsev cag qhuav, ob sab hauv thiab sab nrauv phab ntsa putty hmoov mis (qab zib), nplaum, caulks , cov kab mob tshuaj pleev ib ce, kev pleev xim rau tus kheej, tus neeg saib xyuas nws tus kheej ntawm cov khoom siv hauv tsev tshiab.

Tshuaj lom neeg thaj chaw

Khoom muaj zog

Ention Kev Ua Tuav Dej: Cov kev tuav dej yuav ua kom zoo dua qub, uas yog qhov muaj txiaj ntsig zoo li cov teeb meem xws li cov cement lossis gypsum cov khoom siv kom qhuav sai thiab tsis ua tawv tawv lossis ua kom tawg vim tsis muaj dej tsis txaus.

Txoj kev ua haujlwm: Nws tuaj yeem txhim kho qhov thiav ntawm cug thiab txhim kho txheej txheej nyob rau hauv cov phiaj xwm kev tsim kho.

Hes Cov nplaum nplaum zoo: nws tuaj yeem ua kom cov tshuaj khib tso rau cov khoom siv zoo dua vim tias qhov ua kom zoo dua ntawm cov yas ntau ntawm cov tshuaj khib.

Kev Ruaj Ruaj: Nws tuaj yeem tiv thaiv qhov teeb meem ntawm cov tshuaj khib thiab cov khoom siv hauv qhov tsim ua qhov tsim ua los ntawm nws cov nyhuv tuab.

Ordinary npaj txhij sib xyaw cementitious tshuaj khib tau dhau los ua qhov tseem ceeb tshaj plaws rau kev lag luam tshuaj khib tso hauv Suav teb. Thiab ua txoj haujlwm tsis tseem ceeb vim kev lag luam txhawb nqa thiab txhawb nqa txoj cai hauv lub tebchaws. Hauv kev txhim kho ntawm cov tshuaj khib hluav taws xob yog kev lag luam xav tau nyob rau hauv uas qib cov pob zeb me me, tab sis qhov yuav tsum ua rau nws txoj haujlwm thiab tshuab txau khoom tseem muaj siab, yog li cov xuab zeb muab tshuaj thiab cov khoom ntxiv tseem ceeb. Tsis tas li ntawd, cov dej zoo khaws cia cement hydration yog ua tiav ntau dua rau kev ua kom zoo dua kev ua tau zoo thiab cov txheej txheem tsis kam mus rau shrinkage.

Kev pab

Arance Cov tsos: cov hmoov dawb dawb los yog dawb-off.

Cov Particle loj; 100 mesh tus nqi kis tau ntau dua 98.5%; 80 mesh pass tus nqi yog 100%. Qhov tshwj xeeb loj yog 40 ~ 60 mesh.

● Kev ntsuas kub ntawm lub cev: 280-300 ° C. Pom zoo ntom ntom: 0.25-0.70g / cm (feem ntau ib ncig 0.5g / cm), lub ntiajteb txawj nqus tshwj xeeb 1.26-1.31.

● Qhov xim hloov xim: 190-200 ° C

Tension Lub npoo nro: 2% tshuaj aqueous yog 42-56dyn / cm.

Properties Kev daws cov khoom: cov dej ua kom tau dej thiab qee cov kuab tshuaj, xws li qhov sib npaug tsim nyog ntawm ethanol / dej, propanol / dej. Cov kua aqueous yog saum npoo. Lub pob tshab yog qhov siab thiab qhov ua tau ruaj khov. Cov gel kub nws txawv nrog tshwj xeeb sib txawv. Lub solubility hloov nrog viscosity. Qhov qis dua viscosity, ntau dua cov solubility. Kev ua tau zoo ntawm HPMC hauv cov lus piav qhia tshwj xeeb yog txawv. Kev tshem tawm ntawm HPMC hauv dej tsis cuam tshuam ph.

● HPMC txo nrog cov pab pawg methoxy, cov gel taw tes nce, dej solubility tsawg, thiab qhov kev ua haujlwm saum npoo kuj poob qis.

● HPMC tseem muaj cov peev txheej loj, ntsev-tiv thaiv tsis tshua muaj hmoov tshauv hmoov, pH ruaj khov, dej cia, qhov chaw ruaj khov, ua kom zoo zaj duab xis, thiab ntau hom enzyme tsis kam, dispersibility thiab cohesive yam ntxwv.

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