Cov lus qhia rau hydrating hydroxyethyl cellulose (HEC)

Hydroxyethyl cellulose (HEC) yog cov dej-soluble polymer nquag siv nyob rau hauv ntau yam kev lag luam rau nws cov thickening, ruaj khov, thiab zaj duab xis-ua cov khoom. Thaum ua haujlwm nrog HEC, ua kom muaj kev ua kom zoo yog qhov tseem ceeb kom ua tiav kev xav tau hauv cov qauv. Nov yog qee cov lus qhia rau hydrating hec zoo:

1. Siv dej distilled: Pib los ntawm kev siv dej distilled lossis dej deionized rau cov dej hydrating Hec. Impurities lossis ions tam sim no nyob rau hauv cov dej kais tuaj yeem cuam tshuam txog cov txheej txheem hydration thiab tej zaum yuav ua rau cov txiaj ntsig tau ua.
2. Kev npaj txoj kev: Muaj ntau txoj kev sib txawv rau cov hydrating hec, suav nrog kev sib xyaw txias thiab kub tov. Hauv kev sib xyaw txias, HEC yog maj ntxiv rau cov dej nrog txuas ntxiv mus kom txog thaum tag nrho cov dispersed. Kev kub tov nrog cua sov cov dej kom ib ncig ntawm 80-90 ° C thiab tom qab ntawd maj mam ntxiv hec thaum txhib kom kawg. Cov kev xaiv ntawm txoj kev nyob ntawm qhov tshwj xeeb ntawm cov qauv tsim.
3. Cov ntsis kev ntxiv: Txawm siv cov kev sib xyaw txias lossis kev sib xyaw kub, nws yog qhov tseem ceeb ntxiv rau cov dej thaum lub sij hawm nplawm. Qhov no pab tiv thaiv kev tsim cov lumps thiab ua kom muaj kev sib cais ntawm cov polymer hais.
4. Stirring: kom zoo nplawm yog qhov tseem ceeb rau hydrating hec zoo. Siv cov neeg siv khoom siv stirrer lossis cov khaub ncaws siab los ua kom meej dispersion thiab kev hydration ntawm cov polymer. Zam kev ntxhov siab ntau dhau, raws li nws tuaj yeem qhia cov pa npuas rau hauv kev daws.
5. Hydration lub sij hawm: Cia lub sijhawm txaus rau HEC rau hydrate tag nrho. Ua raws li cov qhab-nees ntawm HEC thiab cov txheej txheem hydration siv, qhov no tuaj yeem los ntawm ob peb feeb txog ob peb teev. Ua raws li cov khoom lag luam cov lus pom zoo rau cov qib kawm tshwj xeeb ntawm HEC siv.
6. Kev tswj qhov kub thiab txias: Thaum siv cov kub tov, saib xyuas qhov kub ntawm cov dej kom tiv thaiv kev kub ntxhov, uas tuaj yeem txwv cov polymer. Tswj cov dej dej khov rau hauv cov txheej txheem kev pom zoo thoob plaws hauv cov txheej txheem hydration.
7. PH.Yog: hauv qee qhov tsim qauv, kho cov ph ntawm cov dej ua ntej ntxiv HEC tuaj yeem txhim kho kev haus dej. Sab laj nrog cov kws tsim qauv lossis xa mus rau cov khoom lag luam rau cov kev taw qhia rau cov kev daws teeb meem ntawm PHAW, yog tias tsim nyog.
8. Kev Ntsuas thiab kev kho kom haum: kev ntsuas dej, sim cov viscosity thiab sib xws ntawm kev daws teeb meem kom ntseeg tau tias nws ua tau raws li cov lus qhia tshwj xeeb. Yog tias yuav muaj kev kho, xav tau dej ntxiv lossis HEC tuaj yeem ntxiv maj thaum hlaus thaum ua kom tiav cov khoom xav tau.

Los ntawm cov lus qhia no, koj tuaj yeem ua kom muaj kev dej haus kom zoo ntawm hydroxyethyl cellulose (HEC) thiab ua kom zoo rau nws cov kev ua tau zoo.