HydroxyPropenCellulose (HPC) yog ib qho kev lag luam ntau ntau yam siv hauv ntau qhov kev lag luam xws li los ntawm cov kws tshuaj rau cov zaub mov. Nws yog muab los ntawm cellulose, ib qho tshwm sim polymer pom hauv cov phab ntsa ntawm tes ntawm cov nroj tsuag. Cov kab ke no tau hloov kho los ntawm kev siv tshuaj lom neeg los qhia hydroxyprropey, hloov kho nws cov khoom thiab ua kom haum rau ntau cov ntawv thov.
Taw qhia rau cellulose:
Cellulose yog cov muaj ntau ntau muaj organic polymer hauv ntiaj teb, muab cov txheej txheem kev txhawb nqa kom cog phab ntsa ntawm tes. Nws muaj cov saw ntev ntawm cov hmoov av molecules txuas ua ke los ntawm β-1,4-glycosidic bonds. Txoj kab qauv no cov qauv muaj zog muaj zog uas ua rau cov tshuab ua haujlwm muaj zog ntawm cov nroj tsuag. Thaum cellulose nws tus kheej muaj ntau yam khoom muaj txiaj ntsig, nws insolubility hauv dej txwv nws cov ntawv thov. Yog li ntawd, kev siv cellulose cellulose los txhim kho nws solubility thiab lwm yam yam ntxwv tau coj mus rau ntau yam kev ua haujlwm ntawm cellulose, suav nrog hydroxypropylencellulose.
Cov Txheej Txheem Ntau Lawm:
Kev tsim cov hydroxypropylencellulose feem ntau cuam tshuam nrog ob kauj ruam tseem ceeb: etherical thiab pawm.
Eetherification: Cetherification yog tus txheej txheem uas hydroxypropyl pawg tau qhia rau lub cellulose caj qaum. Qhov no feem ntau yog ua tiav los ntawm cov tshuaj tiv thaiv ntawm cellulose nrog propylene oxide nyob rau hauv muaj cov alkali catalysts. Cov tshuaj tiv thaiv tuaj yeem raug sawv cev raws li hauv qab no:
Ua kom muaj zog: ua raws li etherification, cov crude hydroxypropenCelulose cov khoom lag luam tsis huv los tshem tawm impurities thiab cov khoom lag luam. Cov txheej txheem lim dej yuav suav nrog kev ntxuav, lim, thiab kom qhuav kom tau txais cov kev xav tau zoo thiab huv ntawm hydroxyprose.
Cov yam ntxwv ntawm hydroxypropenCellulose:
HydroxyPropylropulose muaj ob peb lub zog uas ua rau nws haum rau ntau yam kev siv:
Dej solubility: kev qhia txog cov pab pawg hydroxypropyl mus rau lub cellulose txhim kho polymer's solubility hauv dej. Cov cuab yeej no yog tshwj xeeb yog hauv cov tshuaj uas cov dej solubility yog qhov xav tau.
Zaj duab xis-tsim muaj peev xwm: HydroxyPropylencellulose tuaj yeem sau cov yeeb yaj kiab hloov tau thiab pob tshab cov yeeb yaj kiab thaum yaj hauv dej lossis dej caw. Cov cuab yeej no tau siv rau hauv kev tsim cov txheej txheej rau cov ntsiav tshuaj thiab cov ntsiav tshuaj hauv kev lag luam kws tshuaj.
Thickening thiab gelling: hydroxypropylose cov khoom ua kom tuab thiab gelling cov khoom siv hauv ntau cov qauv xws li cov khoom siv saib xyuas tus kheej thiab cov ntawv thov cov zaub mov zoo li no.
Kev ruaj khov: cov polymer yog ruaj khov tshaj li ntau ntawm PH thiab cov xwm txheej kub, txhim kho nws lub txee-lub neej thiab kev haum rau cov ntawv thov sib txawv.
Cov ntawv thov ntawm hydroxypropylulose:
HydroxyPropylrodcellulose pom cov ntawv thov hla ntau yam kev lag luam:
Kws Tshuaj:
Binder: Nws yog siv los ua phau ntawv sau ua qauv, pab tuav cov khoom xyaw nquag ua ke.
Kev ua txhaum: HydroxypropenCellulose txhawb nqa cov ntsiav tshuaj ceev ceev ntawm cov ntsiav tshuaj, pab txhawb kev yees duab yeeb tshuaj.
Kev siv tus sawv cev: Ua kua ua kua, nws tuaj yeem ua raws li cov neeg raug ncua los tiv thaiv kev tawm ntawm cov khoom.
Viscosity Transfifier: Nws pabcuam ua viscosity concifiier hauv cov ntsiab lus zoo xws li gels thiab cream.
Cov khoom lag luam ntawm tus kheej:
Thickener: HydroxyPropenCellulose ntxiv rau tshuaj zawv plaub hau, tshuaj pleev, thiab cov cream li cov neeg sawv cev tuab los txhim kho lawv cov xwm txheej thiab ruaj khov.
Zaj duab xis yav tas los: Nws tau siv nyob rau hauv cov plaub hau styling khoom los muab cov khoom ua yeeb yaj kiab rau ntev-ntev tuav.
Texturizer: hauv cov qauv tshuaj txhuam hniav, nws ua rau cov kev xav tau thiab muaj txiaj ntsig.
Kev Lag Luam Khoom Noj:
Stabilizer: hydroxypropylropulose tuaj yeem siv ua lub stabilizellulose thiab cov tuab tuab hauv cov khoom noj khoom haus xws li cov kua quav, thiab khoom noj siv mis.
Zaj duab xis txheej: Hauv cov khoom noj khoom haus thiab cov khoom siv tshuab, nws tau ua haujlwm ua cov yeeb yaj kiab-txheej tus neeg sawv cev rau cov ntsiav tshuaj, ntsiav tshuaj, thiab khoom qab zib.
Muaj Ntaub Ntawv:
Cov nplaum: Nws yog siv nyob rau hauv cov qauv nplaum ua kom muaj cov tuab thiab rheology kho tshuab.
Daim Ntawv Txheej: HydroxyPropylencellulose tuaj yeem ntxiv rau cov ntawv txheej txheem los txhim kho cov tshuab luam ntawv thiab kua qaub.
Kev Nyab Xeeb thiab Kev Tswj Xyuas:
HydroxyPropenCellulose feem ntau yog pom tias muaj kev nyab xeeb (Gras) los ntawm kev coj noj coj noj zaub mov noj mov thiab tshuaj (FDA) thaum siv raws li kev ua haujlwm zoo. Txawm li cas los xij, nws yog qhov tseem ceeb kom ua raws li kev cai tswj hwm txog kev coj dawb huv, cov qib kev siv, thiab sau npe cim.
HydroxyPropenCellulose, muab tau los ntawm cellulose los ntawm kev hloov kho tshuaj lom neeg, yog cov khoom siv polymer ntau yam hauv cov khoom siv sib txawv hauv cov khoom siv, cov khoom ntiag tug, thiab cov khoom siv. Nws cov khoom siv tshwj xeeb, suav nrog cov dej solubility, ua yeeb yaj kiab ua yeeb yaj kiab, thiab thickening cov khoom, ua rau nws yog cov khoom tseem ceeb hauv ntau hom. Nrog nws tsim kev nyab xeeb profile thiab kev cai tswj kev pom zoo, hydroxypropyrcelleculose txuas ntxiv mus txhim kho kev ua tau zoo thiab kev ua haujlwm ntawm ntau cov khoom nyob hauv kev lag luam.
Lub Sijhawm Post: Feb-18-2025