qhia:
Hydroxyethylcellulose (HEC) yog ntau yam thiab ntau yam polymer hauv kev lag luam tshuaj lom neeg, ua lub luag haujlwm tseem ceeb hauv kev ruaj khov formulations thiab tswj viscosity.Raws li cov dej-soluble polymer muab los ntawm cellulose, HEC muaj cov khoom tshwj xeeb uas ua rau nws zoo tagnrho rau ntau yam kev siv.
Nkag siab txog cov qauv molecular ntawm HEC:
HEC yog ib qho derivative ntawm cellulose, feem ntau cov organic polymer nyob rau hauv lub ntiaj teb, tau txais los ntawm cov nroj tsuag cell phab ntsa.Los ntawm kev hloov kho tshuaj, ethylene oxide tau nkag mus rau hauv cellulose los ua hydroxyethyl cellulose.Qhov kev hloov kho no ua rau lub polymer dej-soluble, ua rau nws haum rau ntau yam kev siv.
Cov qauv molecular ntawm HEC muaj cov pob txha cellulose thiab cov pab pawg hydroxyethyl txuas nrog hydroxyl (-OH) cov pab pawg ua haujlwm ntawm cov piam thaj.Cov qauv tshwj xeeb no muab HEC ob qho tib si hydrophilic thiab hydrophobic zog, tso cai rau nws cuam tshuam nrog dej thiab lwm yam khoom hauv ntau hom kev tsim.
Stability nyob rau hauv tsev chemicals:
Kev ruaj ntseg yog qhov tseem ceeb hauv kev tsim cov tshuaj zawv plaub hau, tshuaj pleev ib ce, cream thiab lwm yam khoom siv tshuaj pleev ib ce txhua hnub.HEC tuaj yeem ua haujlwm zoo stabilizer vim nws muaj peev xwm hloov cov khoom rheological ntawm kev tsim, tiv thaiv theem sib cais thiab tswj cov khoom ncaj ncees.
Emulsion stability:
HEC txhim kho emulsion stability los ntawm kev tsim cov yeeb yaj kiab tiv thaiv ib puag ncig cov roj los tiv thaiv kev sib koom ua ke.Qhov no yog ib qho tseem ceeb tshwj xeeb tshaj yog rau cov khoom xws li cream thiab tshuaj pleev ib ce, raws li cov tshuaj pleev ib ce ruaj khov kom ntseeg tau tias txawm tias cov khoom xyaw.
Suspension stability:
Hauv cov khoom uas muaj cov khoom tshem tawm, xws li exfoliating scrubs lossis pleev, HEC pab kom cov khoom tawg mus thiab tiv thaiv kev daws teeb meem.Qhov no pab txhim kho tag nrho kev ruaj ntseg thiab zoo nkauj ntawm cov khoom.
pH stability:
HEC ua raws li qhov tsis nyob hauv cov qauv tsim, pab kom ruaj khov thiab tswj cov pH ntawm cov khoom.Qhov no yog qhov tseem ceeb rau cov khoom siv tu tus kheej, vim tias pH cuam tshuam rau ntawm daim tawv nqaij sib xws thiab kev ua tau zoo ntawm cov khoom xyaw nquag.
Kev tswj viscosity hauv cov tshuaj txhua hnub:
Viscosity yog ib qho tseem ceeb parameter uas txiav txim siab cov khoom ntws ntawm cov khoom siv tshuaj txhua hnub.HEC muab viscosity tswj tau zoo los ntawm kev hloov cov thickness thiab kev ntxhib los mos ntawm cov formulation.
Thickener:
HEC feem ntau yog siv los ua tus neeg sawv cev thickening hauv cov khoom xws li tshuaj zawv plaub hau thiab ntxuav lub cev.Nws imparts qhov xav tau viscosity, txhim khu cov khoom zoo nkauj thiab ua rau nws yooj yim rau siv.
Texture modifier:
Cov khoom rheological ntawm HEC tuaj yeem hloov kho kom ua tiav cov qauv hauv cov qauv.Qhov no yog tshwj xeeb tshaj yog zoo rau cov khoom xws li cream thiab tshuaj pleev ib ce, qhov uas yuav tsum tau sib xws thiab kis tau tus mob yog ib qho tseem ceeb rau cov neeg siv khoom txaus siab.
flow tswj:
Hauv cov khoom ua kua xws li xab npum ntxuav tes lossis ntxuav lub cev, HEC pab tswj cov yam ntxwv ntws los xyuas kom yooj yim thiab sib npaug ntawm cov khoom.
nyob rau hauv xaus:
Hauv cov ntsiab lus, hydroxyethylcellulose (HEC) ua lub luag haujlwm tseem ceeb hauv kev lag luam tshuaj lom neeg, ua rau muaj kev ruaj khov thiab viscosity tswj ntawm ntau yam formulations.Nws cov qauv molecular tshwj xeeb, muab los ntawm cellulose, muab nws ntau yam khoom uas ua rau nws muaj qhov tsis tseem ceeb hauv ntau yam kev saib xyuas tus kheej thiab cov khoom kom zoo nkauj.Raws li kev cia siab ntawm cov neeg siv khoom txuas ntxiv mus, HEC qhov tseem ceeb hauv kev tswj xyuas kev ruaj ntseg thiab kev ua haujlwm ntawm cov tshuaj formulations txhua hnub yog qhov yuav nce ntxiv, ua kom nws txoj haujlwm yog qhov tseem ceeb hauv kev lag luam.
Post lub sij hawm: Dec-05-2023