Solubility ntawm HPMC

Hydroxypropyl methylcellulose (HPMC) yog soluble hauv dej, uas yog ib qho ntawm nws cov khoom tseem ceeb tshaj plaws thiab pab txhawb rau nws txoj kev siv ntau yam. Thaum ntxiv rau dej, HPMC disperses thiab hydrates, tsim kom meej thiab viscous daws. Kev solubility ntawm HPMC nyob ntawm ntau yam, suav nrog qib kev hloov pauv (DS), qhov hnyav molecular ntawm polymer, thiab qhov kub ntawm cov tshuaj.

Feem ntau, HPMC nrog cov nqi DS qis dua yuav muaj ntau dua soluble hauv dej piv rau HPMC nrog cov nqi DS siab dua. Ib yam li ntawd, HPMC nrog cov qib qis molecular hnyav tuaj yeem muaj qhov tawg sai dua piv rau cov qib molecular hnyav dua.

Qhov kub ntawm cov tshuaj kuj cuam tshuam cov solubility ntawm HPMC. Kev kub siab dua feem ntau txhim kho cov solubility ntawm HPMC, uas tso cai rau kom tawg sai dua thiab dej. Txawm li cas los xij, HPMC cov kev daws teeb meem tuaj yeem raug gelation lossis theem sib cais ntawm qhov kub siab, tshwj xeeb tshaj yog nyob rau hauv siab.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias thaum HPMC yog soluble hauv dej, tus nqi thiab qhov kev sib cais yuav txawv nyob ntawm seb HPMC qib tshwj xeeb, cov txheej txheem tsim, thiab lwm yam khoom siv ntxiv hauv lub cev. Tsis tas li ntawd, HPMC tuaj yeem pom cov yam ntxwv sib txawv hauv cov kuab tshuaj organic lossis lwm cov tshuab tsis muaj dej.

Lub solubility ntawm HPMC nyob rau hauv dej ua rau nws yog ib qho tseem ceeb polymer rau ntau yam kev siv uas viscosity hloov, tsim zaj duab xis, los yog lwm yam functionalities xav tau.