HEC (Hydroxyethylcellulose) yog dej-soluble polymer compound hloov los ntawm ntuj cellulose. Nws yog dav siv nyob rau hauv cov tshuaj pleev ib ce, feem ntau yog ua kom tuab, stabilizer thiab emulsifier los txhim kho cov khoom lag luam xav tau thiab cov nyhuv. Raws li cov tsis-ionic polymer, HEC tshwj xeeb tshwj xeeb rau hauv cov tshuaj pleev ib ce.
1. Cov khoom yooj yim ntawm HEC
HEC yog hloov kho cellulose tau tsim los ntawm kev rov ua kom muaj ntuj cellulose nrog Etheboxylation. Nws yog ib qho tsis muaj kob, tsw ntxhiab, hmoov dawb nrog dej so kom zoo thiab ruaj khov. Vim muaj ntau tus ntawm cov pawg hydroxyethyl nyob rau hauv nws cov qauv molecular thiab tuaj yeem tsim cov lwg me me ntawm cov roj av thiab hnov ntawm cov mis.
2. Thickening nyhuv
Ib qho ntawm cov kev siv kev txhawj xeeb tshaj plaws ntawm kev txhawj xeeb ®ec yog li lub thickener. Vim nws cov qauv macromolecular, HEC tuaj yeem tsim cov qauv colloidal hauv dej thiab nce viscosity ntawm kev daws teeb meem. Hauv cov qauv ua kom zoo nkauj, HEC feem ntau siv los kho cov khoom lag luam xws li lotions, kua pleev, ua kom yooj yim rau kev thov thiab nqus.
Ntxiv Hec kom muaj cov tshuaj pleev kom meej thiab cream tuaj yeem ua rau cov khoom ntawm cov khoom smoother thiab fuler, thiab nws tsis yooj yim ntws thaum siv, uas txhim kho cov neeg siv khoom. Txog kev ntxuav cov khoom, xws li cov ntsej muag ntsej muag thiab tshuaj ntxhua khaub ncaws, cov nyhuv thickening, cov nyhuv tuab tuaj yeem ua rau cov ua npuas dej nplua nuj, thiab ua kom muaj zog ntau thiab cov txiaj ntsig ntawm cov khoom.
3. Txhim kho cov khoom sib dhos
Lwm qhov tseem ceeb ntawm HEC hauv cov tshuaj pleev ib ce yog txhawm rau txhim kho cov khoom sib dhos. Rheological cov khoom lag luam xa mus rau qhov deformation thiab txaus ntws ntawm cov khoom ntawm qhov kev txiav txim ntawm kev ua ntawm sab nraud rog. Rau cov tshuaj pleev ib ce, cov khoom siv hluav taws xob zoo tuaj yeem ua kom muaj kev ruaj khov thiab yooj yim ntawm kev siv cov khoom hauv cov chaw sib txawv. HEC kho kom haum rau lub fluion thiab adhesion ntawm cov qauv los ntawm kev cuam tshuam nrog cov lwg dej thiab lwm cov khoom xyaw. Piv txwv li, tom qab HEC tau ntxiv rau cov emulsion, lub fluion ntawm cov emulsion tuaj yeem hloov kho kom nws tsis dhau viscous, kom ua kom muaj tseeb thiab nqus tau.
4. Emulsion Stability
HEC kuj tseem siv hauv kev emulsion thiab gel tshuaj pleev ib ce ua ib qho tsis huv. Emulsion yog lub kaw lus muaj cov dej theem thiab roj theem. Lub luag haujlwm ntawm emulsifier yog kom sib tov thiab ruaj khov ob lub zog tsis sib xws ntawm cov dej thiab roj. HEC, raws li lub siab molecular hnyav cov khoom, tuaj yeem txhim kho cov qauv kev ruaj ntseg ntawm cov qauv emulsion ntawm kev tsim cov qauv network thiab tiv thaiv cov roj sib cais. Nws cov nyhuv tuab yuav pab tswj cov txheej txheem emulsification, kom cov khoom yuav tsis stratify thaum lub sijhawm ntim thiab siv, thiab tswj cov khaub ncaws tsis sib xws thiab ua rau.
HEC tseem tuaj yeem ua haujlwm synergistically nrog rau lwm cov emulsifiers nyob rau hauv cov mis los txhim kho kev ruaj khov thiab moisturizing nyhuv ntawm emulsion.
5. Yisturizing nyhuv
Lub moisturizing nyhuv nyhuv ntawm HEC hauv cov tshuaj pleev ib ce yog lwm yam tseem ceeb. Cov pab pawg hydroxyl muaj nyob hauv hec molecule tuaj yeem tsim cov lwg me me, pab nqus thiab ntsuas phoo thiab yog li ua si nrog kev ua haujlwm noo noo. Qhov no ua rau HEC muaj cov dej noo zoo tshaj plaws, tshwj xeeb tshaj yog nyob rau hauv cov khoom lag luam kom qhuav, uas muaj peev xwm tswj cov tawv nqaij noo ntawm daim tawv nqaij.
HEC feem ntau ntxiv rau cov khoom tu tawv nqaij xws li cream, tshuaj, thiab cov ntsiab lus los txhim kho lub moisturizing thiab softness ntawm daim tawv nqaij. Tsis tas li ntawd, ntxhov siab ®ec kuj tseem tuaj yeem pab daim tawv nqaij tiv thaiv, txo cov dej poob, thiab txhim kho cov tawv nqaij tawv.
6. Kev tawv nqaij zoo nkauj thiab kev nyab xeeb
HEC yog cov tshuaj me me uas feem ntau suav hais tias tsis yog qhov tsis haum rau daim tawv nqaij thiab muaj cov zoo biocompatibility. Nws tsis ua rau daim tawv nqaij ua xua lossis lwm cov kev mob tshwm sim thiab tsim nyog rau txhua hom tawv nqaij, tshwj xeeb tshaj yog cov tawv nqaij uas rhiab. Yog li, HEC feem ntau siv hauv kev tu menyuam, rhiab tu tawv nqaij, thiab lwm cov tshuaj pleev ib ce uas yuav tsum muaj mis me me.
7. Lwm cov txiaj ntsig thov
HEC tuaj yeem siv tau los ua cov neeg muaj kev ncua hauv cov tshuaj ntxuav kom muaj kev pab cuam tshuam xws li cov khoom siv txhuam thiab cog cov khoom ntawm cov khoom. Ib qho ntxiv, HEC kuj tau siv nyob rau hauv Sunscreens muab cov txheej txheej teeb thiab txhim kho cov txiaj ntsig tiv thaiv tshav ntuj.
Hauv kev tawm tsam laus thiab antioxidant, hydrophilicity ntawmTus pa Kuj tseem pab nyiam thiab xauv hauv noo noo, pab cov khoom xyaw kom nquag kom nkag mus rau cov tawv nqaij zoo dua ntawm cov khoom lag luam no.
Raws li cov khoom siv kom hniav zoo nkauj, HEC muaj ntau cov teebmeem thiab tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov khoom siv hluav taws xob, txhim kho emulsical stability, thiab muab pov thaiv cov teebmeem. Nws txoj kev nyab xeeb thiab kev mob me me ua nws haum rau ntau hom tshuaj pleev ib ce, tshwj xeeb tshaj yog rau cov tawv nqaij qhuav thiab rhiab. Raws li kev ua kom zoo nkauj kev lag luam xav tau rau cov me, ua tau zoo, thiab tus phooj ywg ib puag ncig nce ntxiv mus ua txoj haujlwm tseem ceeb hauv lub cosmetic teb.
Lub Sijhawm Post: Jan-10-2025