Hydroxyethylcelulose (HEC) yog ib qho ntau yam tuab tuab siv nyob rau hauv cov txheej txheem kev lag luam. Nws yog lub ntuj muaj zog tsim los ntawm cov tshuaj tiv thaiv ntawm cellulose nrog ethylene oxide nyob rau hauv alkaline tej yam kev mob. Cov txheej txheem tsim cov dej-soluble polymers uas tau tshaj nrog cov txheej txheem dej-raws li cov khoom lag luam.
Lub ntsiab kom zoo ntawm HEC nws muaj peev xwm ua rau nce ntxiv qhov sib xws thiab viscosity ntawm cov txheej txheem yam tsis muaj kev cuam tshuam rau lwm cov qauv tsim qauv. It has excellent electrolyte resistance and maintains its thickening ability even in the presence of other additives such as surfactants, pigments and fillers. Qhov no ua rau HEC qhov ua tau zoo heev thiab ua kom tuab ua cov qauv txheej txheem.
HEC yog soluble nyob hauv dej yog li nws tuaj yeem yooj yim dispersed thiab sib xyaw ua ke ua qauv. Qhov no ua rau cov txheej txheem thickening ntau dua thiab ua tau zoo, thaum tseem ua kom cov xim sib xyaw ua ke yam tsis muaj kev tsim cov pob zeb lossis cov qoob loo.
Lwm cov txiaj ntsig tseem ceeb ntawm HEC yog nws cov zoo heev shear stability, uas tiv thaiv cov txheej los ntawm thinning los yog khiav thaum daim ntawv thov. Nws kuj tseem pab ua cov yeeb yaj kiab tsis zoo nrog cov khoom siv roj zoo heev, yog li kev txhim kho cov tsos ntawm cov coated nto.
Hec tseem ua si lub luag haujlwm tseem ceeb hauv kev txhim kho qhov kev ua tau zoo tag nrho ntawm cov txheej txheem. HEC cov thickening thiab ruaj khov ua rau nws muaj txiaj ntsig zoo thiab rheology kho, pab kom ua kom tiav qhov ntev thiab ntev ntawm cov txheej txheem. Nov yog qhov tshwj xeeb tshaj yog rau sab nrauv txheej txheej sab nrauv, uas yuav tsum tau tiv thaiv huab cua hnyav thiab ntev ntev rau UV hluav taws xob.
Hec tseem txhim kho txheej txheej adhesion mus rau substrate, nrog rau nws txoj kev tiv taus puas tsuaj thiab txhuam. Nws cov khoom siv dej tau zoo pab txhawb kev ziab thiab zaj duab xis tsim, ua rau muaj kev sib tw zoo thiab ruaj khov.
Ib qho tseem ceeb tshaj plaws ntawm Hec yog nws qhov sib raug zoo nrog ntau yam xim muaj ntau yam, suav nrog cov xim pleev cov dej kom zoo, thiab cov kuab tshuaj alkydent-based. Qhov no ua rau nws muaj kev xaiv rau cov txheej txheem pleev xim, uas tuaj yeem ntxiv hac rau lawv cov qauv yam tsis muaj kev txhawj xeeb tsis muaj kev cuam tshuam lossis cov kev mob tshwm sim tsis zoo.
Ntxiv rau nws cov ntawv thov hauv kev lag luam txheej txheej, HEC tuaj yeem pom siv hauv lwm cov kev lag luam xws li tshuaj pleev ib ce, tshuaj thiab khoom noj. Nws cov versatility thiab cov txiaj ntsig ua rau nws muaj txiaj ntsig zoo rau ntau cov ntawv thov sib txawv.
Hydroxyethylcellose yog ib qho tseem ceeb, ntau yam tuab uas ua lub luag haujlwm tseem ceeb hauv kev tsim qauv thiab kev ua tau zoo ntawm cov txheej txheem. Nws cov khoom tshwj xeeb txhim kho qhov xwm txheej, viscosity, kev ruaj ntseg thiab kev ua tau zoo ntawm cov khoom siv tseem ceeb hauv ntau txheej txheej. Nws qhov sib raug zoo nrog ntau yam xim thiab lwm yam ntxiv ua rau nws muaj kev xaiv zoo rau cov xim sau cov xim. Hydroxycellulose: thickener uas txhim kho cov xim zoo thiab ua tau zoo. Nws cov khoom tshwj xeeb txhim kho cov txheej txheej, viscosity, ruaj khov thiab dispersion, nrog rau cov tsos thiab tsos ntawm txheej. Nyob rau hauv cov txheej txheej kev lag luam, hydrogen homogeneus oxygen cellulose yog ib tug pa roj carbon dioxide tuab neeg siv cov hom coating thiab kev tsim khoom.
Lub Sijhawm Post: Feb-19-2025