Hydroxyethyl cellulose (HEC) yog qhov kev siv ntau yam uas pom tias yog cov tuab, tshwj xeeb hauv kev saib xyuas tus kheej, cov tshuaj, thiab kev tsim kho. Nrog nws cov yam ntxwv tshwj xeeb, HEC pabcuam ua cov khoom tseem ceeb hauv ntau cov qauv, txhim kho cov khoom lag luam thiab kev ruaj khov.
1. Siv zog thiab khoom
HEC yog rau lub cellulose ether tsev neeg, tau los ntawm cellulose los ntawm kev hloov kho tshuaj lom neeg. Cellulose, ib qho tshwm sim polysaccharide pom nyob hauv cov phab ntsa ntawm tes ntawm cov nroj tsuag, ua haujlwm ua thawj zaug. Los ntawm kev qhia txog cov pab pawg hydroxyethyl mus rau lub cellulose caj qaum los ntawm ethermov, HEC yog synthesized, ua kom muaj txiaj ntsig zoo nrog cov yam ntxwv sib txawv.
Ib qho ntawm cov khoom tseem ceeb ntawm HEC yog nws lub peev xwm los tsim cov kev daws teeb meem hauv dej. Qhov viscosity no yog qhov siab heev ntawm cov xwm txheej xws li polymer concentration, kub, thiab shear tus nqi. Ntxiv mus, HC cov khoom ua pov thawj pseudopastic tus cwj pwm, txhais tau tias nws viscosity txo qis nyob rau hauv shear kev nyuaj siab, yooj yim yooj yim ntawm daim ntawv thov. Ib qho ntxiv, HEC yog soluble hauv ob qho tib si txias thiab dej kub, muab versatility rau hauv kev tsim qauv.
2., thiab kev siv
Hec Execessal Thickening cov khoom ua rau nws tsis tseem ceeb nyob rau hauv ntau cov ntawv thov hla ntau yam lag luam:
Hec cov khoom lag luam uas tau txais: HEC pabcuam ua cov khoom siv lossis cov tshuaj pleev ib ce, cov quav, thiab cov khoom siv tawv nqaij. Nws txhim kho cov viscosity ntawm creams, tshuaj, tshuaj zawv plaub hau, thiab gels, colorarting ntshaw cov khoom muaj thiab txhim kho cov khoom ruaj khov. Hauv kev saib xyuas cov plaub hau, hi pab txhawb rau cov kev xav tau thiab ntws cov yam ntxwv.
Kws Tshuaj, hauv cov tshuaj yeeb yaj kiab, hauv cov tshuaj, cov kev ua tuab rau cov ntaub ntawv ua kua xws li kev ncua, phoov, thiab cov kev daws teeb meem kua pleev. Nws pab tswj lub viscosity ntawm cov qauv ua qauv, kom muaj kev faib tawm cov khoom xyaw ua ke ntawm cov khoom lag luam.
Cov xim tsev thiab txheej: HEC tau siv nyob rau hauv cov xim thiab pleev xim kev lag luam kom hloov cov khoom ntawm cov qauv ntawm cov qauv. Los ntawm kev kho lub viscility, HEC ua kom haum rau cov xim pleev cov xim pleev kom zoo thiab tiv thaiv sagging lossis dripping, ua rau cov txheej txheej sib xyaw tuab thiab txhim kho cov npoo ua tiav.
Cov khoom siv tsim kho: Hauv kev siv kev siv, HEC tau ua haujlwm raws li cov khoom siv rheology hauv cov khoom noj khoom haus xws li mortars, grouts, thiab pobzeb cov nplaum. Nws imparts thixotropic cov yam ntxwv rau cov ntaub ntawv no, txhim kho kev ua haujlwm, txo lub zog, thiab txhawb kev ua kom muaj zog, thiab txhawb kev ua kom muaj zog, thiab txhawb kev ua kom muaj zog, thiab txhim kho kev ua kom muaj zog.
Roj thiab roj: HEC pom tau siv hauv cov kua dej ua haujlwm thiab cov kua dej hauv cov roj thiab roj kev lag luam. Nws ua haujlwm raws li cov viscosifier, muab kev ruaj khov rau cov kua dej thiab pab rau hauv kev ncua ntawm cov khib nyiab thaum lub sijhawm khiav haujlwm.
Kev lag luam khoom noj: thaum tsis muaj ntau yam xws li hauv kev siv cov zaub mov ua kom khov thiab noo noo, ua rau muaj kev txhim kho thiab noo noo kom muaj kev txhim kho hauv cov khoom noj khoom haus.
Hydroxyethyl cellulose (HEC) sawv ntsug vim tias muaj ntau yam thiab indispensable polymer nyob rau ntau kev lag luam vim nws cov kev zam thickening muaj thiab dej-solubility. Los ntawm kev saib xyuas tus kheej thiab cov tshuaj nqa khoom siv rau cov ntaub ntawv tsim kho thiab dhau ntawm, hec ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov khoom lag luam, kev siv zog ruaj khov, thiab kev thov kev siv thiab kev thov kev thov. Nws tshwj xeeb ua ke ntawm cov khoom ua rau nws xaiv qhov kev xaiv zoo tshaj plaws rau cov kws tshawb fawb Rheology kev hloov kho thiab viscosity tswj nyob rau hauv lawv cov khoom. Raws li thev naus laus zis thiab cov ntawv thov tshiab tawm, qhov kev thov rau HEC yuav tsum txuas ntxiv loj hlob, rov qab muaj cov khoom xyaw hauv lub pob zeb.
Lub Sijhawm Post: Feb-18-2025