Hydroxypropyl methylcellulose (HPMC) yog cov khoom muaj ntau yam siv dav hauv cov khoom tu tus kheej. Nws yog ib qho nonionic cellulose ether ua los ntawm ntuj cellulose los ntawm kev hloov tshuaj, nrog zoo solubility thiab biocompatibility. Hauv qab no yog ob peb daim ntawv thov tseem ceeb ntawm HPMC hauv cov khoom siv tu tus kheej.
1. Stabilizer thiab thickener
Ib qho ntawm cov kev siv ntau tshaj plaws ntawm HPMC hauv cov khoom tu tus kheej yog ua kom ruaj khov thiab tuab. Vim nws cov dej zoo solubility thiab gel-forming zog, HPMC muaj peev xwm tsim ib tug viscous colloidal tov nyob rau hauv ib tug aqueous tov, yog li ua rau cov viscosity ntawm cov khoom. Cov cuab yeej no ua rau nws siv dav hauv cov khoom xws li cov khoom tu tawv nqaij, tshuaj zawv plaub hau, thiab cov tshuaj kho kom zoo dua qub thiab ruaj khov ntawm cov khoom. HPMC tuaj yeem tiv thaiv qhov stratification lossis nag lossis daus ntawm cov khoom xyaw, yog li ncua lub txee lub neej ntawm cov khoom.
2. Zaj movie qub
HPMC kuj tseem siv los ua yeeb yaj kiab yav dhau los hauv cov khoom tu tus kheej. Nws tuaj yeem tsim ib zaj duab xis nyias ntawm daim tawv nqaij lossis plaub hau los muab kev tiv thaiv thiab moisturizing los. Piv txwv li, hauv tshuaj pleev thaiv hnub, HPMC tuaj yeem pab cov khoom xyaw kom sib npaug ntawm daim tawv nqaij kom txhim kho cov tshuaj pleev thaiv hnub. Tsis tas li ntawd, hauv cov khoom siv tu plaub hau, zaj duab xis tsim los ntawm HPMC tuaj yeem pab cov plaub hau khaws cov dej noo thiab ua kom cov plaub hau luster thiab softness.
3. Tswj kev tso tawm
HPMC kuj tseem siv tau los tswj cov khoom tso tawm. Hauv qee cov khoom tu tawv nqaij thiab tshuaj pleev ib ce, qhov tso tawm ntawm cov khoom xyaw nquag yog qhov tseem ceeb rau cov nyhuv ntawm cov khoom. HPMC tuaj yeem tswj tau qhov tso tawm ntawm cov khoom xyaw nquag los ntawm kev kho nws cov solubility thiab gelation hauv dej. Piv txwv li, hauv qee cov khoom siv moisturizing, HPMC tuaj yeem pab tswj kev tso tawm cov khoom xyaw moisturizing kom lawv maj mam tso tawm thiab muab cov nyhuv moisturizing tas li.
4. Ua npuas ncauj ruaj khov
Hauv cov khoom siv ntxuav, tshwj xeeb tshaj yog cov tshuaj ntxuav lub ntsej muag thiab tshuaj zawv plaub hau, kev ruaj ntseg thiab kev ntxhib los mos ntawm cov npuas dej yog qhov tseem ceeb cuam tshuam rau cov neeg siv kev paub. HPMC muaj kev ruaj ntseg zoo ua npuas ncauj thiab tuaj yeem pab cov khoom tsim ua npuas ncauj nplua nuj thiab kav ntev thaum siv. Qhov no tsis tsuas yog txhim kho cov khoom siv kev paub, tab sis kuj txhim kho cov nyhuv ntxuav.
5. Ua kom tawv nqaij zoo
HPMC kuj tseem tuaj yeem txhim kho cov tawv nqaij ntawm cov khoom tu tus kheej. Vim nws txoj kev ntxhib los mos thiab silky, HPMC muaj peev xwm muab kev siv yooj yim hauv cov khoom tu tawv nqaij. Nws tuaj yeem txo qhov kev xav greasy hauv cov khoom thiab ua rau cov khoom siv yooj yim dua thiab nqus tau. Tsis tas li ntawd, HPMC tseem tuaj yeem txhim kho qhov adhesion ntawm cov khoom, tso cai rau nws nyob ntawm daim tawv nqaij ntev, yog li txhim kho cov txiaj ntsig ntawm cov khoom.
6. Cov tshuaj tsis muaj tshuaj tiv thaiv
Lwm daim ntawv thov tseem ceeb ntawm HPMC yog los pab ua kom tiav cov tshuaj tiv thaiv-dawb formulations. Vim nws cov gel-forming zog thiab zoo dej-binding muaj peev xwm, HPMC tuaj yeem inhibit qhov kev loj hlob ntawm cov kab mob mus rau ib qho twg. Qhov no ua rau nws muaj peev xwm siv HPMC hauv qee cov tshuaj tsis muaj tshuaj tiv thaiv, yog li ua tau raws li qhov kev thov rau cov khoom siv ntuj tsim thiab qis qis.
Hydroxypropyl methylcellulose (HPMC) yog siv dav hauv cov khoom tu tus kheej. Raws li cov khoom siv ntau yam, HPMC tuaj yeem tsis tsuas yog muab cov thickening, zaj duab xis-tsim thiab tswj kev tso tawm, tab sis kuj txhim kho qhov kev ntxhib los mos thiab kev xav ntawm cov khoom. Raws li cov neeg siv khoom xav tau rau cov khoom muaj kev nyab xeeb thiab kev ua tau zoo nce ntxiv, HPMC daim ntawv thov kev cia siab rau yav tom ntej ntawm cov khoom tu tus kheej tseem nyob dav.
Post lub sij hawm: Aug-06-2024