Carbomer thiab hydroxyethylcellulose (HEC) yog ob qho tib si feem ntau siv nyob rau ntau yam kev lag luam, tshwj xeeb hauv tshuaj pleev ib ce, tshuaj, thiab cov khoom lag luam ntawm tus kheej. Txawm hais tias lawv cov ntawv thov zoo sib xws li cov neeg sawv cev ua kom tuab thiab ua rau muaj cov tshuaj lom neeg siv tshuaj, khoom, thiab cov ntawv thov.
1. Tshuaj lom neeg:
Carbomer: carbomers yog hluavtaws siab molecular phaus phaus molecers ntawm Acrylic Acid Cross-txuas nrog Polyalkenyl tus neeg raug tsim txom-sib txuas nrog Polyalkenyl cov neeg muaj kev sib txawv lossis cov khoom siv rau cov nkauj los yog cov khoom siv los ua ke. Lawv feem ntau yog tsim los ntawm polymerization kev tawm tsam.
Hydroxyethylulose: Hydroxyethylcellulose, ntawm qhov tod tes, yog qhov kev sib tw ntawm cellulose, ib qho tshwm sim polymer. Nws yog tsim los ntawm kev kho cellulose nrog sodium hydroxide thiab ethylene oxide los qhia hydroxyethyl pawg mus rau lub cellulose cellebone.
2. Molecular qauv:
Carbomer: carbomers muaj ib tug qauv molecular vim lawv tus ntoo khaub lig-txuas. Cov ceg no ua rau lawv muaj peev xwm tsim tau ib qho kev sib tw peb-seem thaum hydr siv, ua rau muaj cov khoom siv ua tuab thiab ua kom zoo nkauj.
Hydroxyethylulose: Hydroxyethylcellulose khaws cov qauv kab ntawm cellulose ntawm cov pab pawg fluculose txuas nrog cov tshuaj ntsuab ua raws cov kev sib tw polymer. Txoj kab kab no cuam tshuam nws tus cwj pwm ua cov tuab thiab tawv.
3. Solubility:
Carbomer: Carbomers yog feem ntau muab rau hauv daim ntawv hmoov thiab muaj insoluble hauv dej. Txawm li cas los xij, lawv tuaj yeem o thiab hydrate nyob rau hauv aqueous daws, ua cov pob tshab gels lossis viscous dispersions.
Hydroxyethylulose: Hydroxyethylcellulose kuj tseem muab rau hauv daim foos hmoov tab sis yog yooj yim soluble hauv dej. Nws dissolves los ua kom pom tseeb lossis ua kom huv si
4. Thickenies:
Carbomer: carbomers muaj cov tuab tuab heev thiab tuaj yeem tsim cov viscosity nyob rau hauv ntau cov qauv ntawm cov qauv, suav nrog cov tshuaj cream, kua txiv, thiab lotions. Lawv muab cov khoom tau nce zoo thiab feem ntau siv los ua kom muaj emulsions.
Hydroxyethylulose: Hydroxyethylcellulose kuj ua haujlwm ua cov tuab dua tab sis ua kom pom kev sib txawv ntawm cov carbomers. Nws imparts ib pseudoplastic los yog shear-thinning ntws mus rau cov qauv, txhais tau tias yuav txo qis kev nyuaj siab, yooj yim.
5. Sib piv:
Carbomer: carbomers tau tshaj nrog ntau hom tshuaj pleev ib ce thiab qib PH. Txawm li cas los xij, lawv yuav xav tau kev nruab nrab nrog Alkalis (piv txwv li, Triethanoline) kom ua tiav cov khoom siv ua kom zoo thiab ua kom zoo nkauj.
Hydroxyethylulose: Hydroxyethylcellulose yog sib xws nrog ntau cov kuab tshuaj thiab cov khoom xyaw kom zoo nkauj. Nws yog qhov ruaj khov hla lub xov tooj dav thiab tsis tas yuav tsum muaj kev ntxhov siab rau thickening.
6. Daim ntawv thov:
Carbomer: carbomers pom ntau yam siv nyob rau hauv cov khoom lag luam saib xyuas ntawm tus kheej xws li cream, tshuaj, thiab kev saib xyuas plaub hau. Lawv kuj tau siv hauv cov khoom lag luam uas zoo li cov tsos tsw thiab cov kev daws teeb meem ophthalmic.
Hydroxyethylulose: Hydroxyethylcellulose feem ntau yog ua haujlwm hauv cov tshuaj pleev ib ce thiab cov tshuaj zawv plaub hau, suav nrog cov tshuaj zawv plaub hau, muab tshuaj ntxuav lub cev, thiab tshuaj txhuam hniav. Nws kuj yog siv rau hauv cov ntawv thov tshuaj, tshwj xeeb yog cov ncauj lus qhuab qhia.
7. Cov yam ntxwv zoo:
Carbomer: carbomer gels feem ntau ua rau muaj kev ntxhib los mos thiab lub siab xav paub txog kev ua kom zoo nkauj rau cov qauv. Txawm li cas los xij, lawv yuav xav tias me ntsis tacky lossis nplaum thaum thov qee kis.
Hydroxyethylulose: Hydroxyethylcellulose imparts ib tug silky thiab tsis nplaum xav ua kom haum. Nws tus cwjpwm shear, ua rau cov cwj pwm yooj yim thiab nqus, txhim kho cov neeg siv kev paub.
8. Kev txiav txim siab:
Carbomer: carbomers feem ntau pom tau tias muaj kev nyab xeeb (gras) los ntawm cov cai tswj hwm thaum siv raws li cov kev tsim khoom zoo (GMP). Txawm li cas los xij, cov kev tswj hwm tshwj xeeb yuav txawv nyob ntawm cov kev npaj npe thiab thaj chaw ntawm cheeb tsam.
Hydroxyethylulose: hydroxyethylcellulose kuj tseem suav tias muaj kev nyab xeeb rau siv hauv cov tshuaj pleev ib ce thiab cov kws tshuaj uas pom zoo los ntawm cov tub ceev xwm. Ua raws li cov kev cai thiab cov lus qhia yog qhov tseem ceeb rau kev nyab xeeb khoom muaj kev nyab xeeb thiab ua tau zoo.
Thaum ob leeg carbomer thiab hydroxyethylcellose ua cov qauv siv tshuaj, kev sib txawv, cov yam ntxwv thov, thiab kev xaiv cov yam ntxwv. Nkag siab cov kev sib txawv no yog qhov tseem ceeb rau cov kws sau ntawv los xaiv cov khoom haum uas haum rau lawv cov khoom lag luam tshwj xeeb thiab kev ua tau zoo.
Lub Sijhawm Post: Apr-18-2024