Hydroxyethyl cellulose (HEC) yog cov tuab tuab siv tuab, emulsifier thiab stabilizer, tshuaj pleev ib ce, cov ntaub ntawv tsim tsev thiab lwm thaj chaw. Nws cov kev siv piv feem ntau yog tau txiav txim siab raws li cov ntaub ntawv thov tshwj xeeb thiab cov kev tsim qauv tsim.
1. Kev lag luam txheej txheem
Hauv cov txheej txheej hauv dej, hydroxyethyl cellulose feem ntau siv los ua tuab thiab ncua cov neeg sawv cev thiab ncua cov neeg viscosity thiab rheology ntawm txheej. Feem ntau, kev siv tau sib piv yog 0.1% rau 2.0% (qhov hnyav piv). Qhov sib piv tshwj xeeb yog nyob ntawm cov hom txheej, cov khoom siv hluav taws xob uas xav tau thiab ua ke ntawm lwm yam khoom xyaw.
2. Tshuaj pleev ib ce thiab cov khoom siv saib xyuas tus kheej
Hauv cov tshuaj pleev ib ce, hydroxyethyl cellulose yog siv los ua cov tuab thiab stabilizer kom pab txhim kho kev ntxhib los mos thiab ntawv thov ua tau ntawm cov khoom. Qhov kev siv tau sib piv yog 0.1% rau 1.0%. Piv txwv li, hauv zawv plaub hau, ntsej muag ntxuav, pleev tshuaj pleev thiab cov gel, HEC tuaj yeem muab kov zoo thiab ruaj khov.
3. Cov tshuaj ntxuav thiab xab npum
Hauv cov tshuaj ntxuav kua ua kua, hydroxyethyl cellulose yog siv los kho lub piscosity thiab ncua kev ncua ntawm cov khoom thiab tiv thaiv nag lossis daus ntawm cov khoom siv. Kev siv txoj piv yog feem ntau 0.2% rau 1.0%. Tus nqi ntawm hec siv nyob rau ntau hom kev ntxuav tu yuav sib txawv.
4. Lub tsev cov ntaub ntawv
Hauv cov ntaub ntawv hauv tsev, xws li MAAs slurry, gypsum, pobzeb nplaum, thiab lwm yam, hydroxyethyl cellulose yog siv los ua dej tuav thiab tuab. Feem ntau, kev siv kev siv tau yog 0.1% rau 0.5%. HEC tuaj yeem txhim kho kev tsim kho ntawm cov khoom siv, txuas lub sijhawm ua haujlwm ntev, thiab txhim kho cov cuab yeej sagging.
5. Lwm cov ntawv thov
Hydroxyethyl cellulose tseem dav siv hauv lwm daim teb, xws li cov khoom noj thiab tshuaj. Kev siv tau sib piv yog feem ntau kho raws li cov kev tseev kom muaj. Piv txwv li, hauv kev lag luam khoom noj khoom haus, kev siv tshuaj, stabener, stabilizer thiab emulsifier, thiab nws cov kev siv feem ntau tsawg.
Cov kev ceev faj
Thaum siv hydroxyethyl cellulose, koj yuav tsum tau them sai sai rau cov ntsiab lus hauv qab no:
Txoj Kev Txhuam Qhia: Cov Solubility ntawm HEC raug cuam tshuam los ntawm qhov kub, P muaj nuj nqis thiab cov teeb meem nplawm. Nws feem ntau yuav tsum tau ntxiv qeeb rau dej thiab do kom huv si.
Cov mis piv: Yuav cuam tshuam cov khoom xyaw rau HEC, yog li yuav tsum tau kuaj xyuas ntawm cov txheej txheem kev txhim kho.
Viscosity tswj: raws li cov kev xav tau ntawm cov khoom kawg, xaiv cov hom HEC tsim nyog tsim nyog thiab noj kom ua tiav cov viscosity.
Kev siv txoj piv ntawm hydroxyethyl cellulose yog qhov ntsuas yooj yim uas yuav tsum tau hloov kho raws li cov ntawv thov tshwj xeeb thiab cov qauv. To taub cov kev ua tau zoo ntawm HEC hauv cov ntawv thov sib txawv tuaj yeem pab ua kom ua kom ua tau cov khoom ua haujlwm zoo thiab ua tau zoo.
Lub sij hawm Post: Lub Yim Hli 08-2024