HPMC gel

Hydroxypropyl methylcellulose (HPMC) yog ib hom cellulose ether uas yog siv rau ntau yam kev siv, xws li ua tus neeg sawv cev gelling, thickener, emulsifier, stabilizer, thiab suspending agent. Nws yog cov dej-soluble polymer muab tau los ntawm cellulose, thiab feem ntau siv rau hauv cov khoom noj, tshuaj, thiab tshuaj pleev ib ce. HPMC kuj tseem siv los ua cov gels, uas yog cov txheej txheem semi-solid tsim los ntawm cov kua dispersed hauv cov khoom matrix. HPMC gels yog siv rau ntau yam kev siv, nrog rau kev xa tshuaj, tshuaj pleev ib ce, thiab khoom noj khoom haus.

HPMC gels yog tsim thaum HPMC yaj nyob rau hauv ib qho hnyav, xws li dej. Raws li cov tshuaj txias, HPMC molecules tsim ib lub network uas ntxiab cov kuab tshuaj, tsim ib gel. Cov khoom ntawm cov gel nyob ntawm qhov concentration ntawm HPMC, hom hnyav, thiab qhov kub thiab txias. Gels tsim los ntawm HPMC feem ntau yog pob tshab thiab muaj cov jelly zoo li sib xws.

HPMC gels tuaj yeem siv rau ntau yam kev siv. Hauv kev lag luam kws tshuaj, HPMC gels yog siv los xa cov tshuaj rau lub cev. Cov gel tuaj yeem tsim tawm los tso cov tshuaj nyob rau lub sijhawm, tso cai rau kev xa tshuaj mus ntev. HPMC gels kuj tseem siv rau hauv cov tshuaj pleev ib ce, xws li tshuaj pleev ib ce thiab tshuaj pleev ib ce, los muab kev ntxhib los mos, creamy. Hauv cov khoom noj khoom haus, HPMC gels yog siv los ua thickeners thiab stabilizers.

HPMC gels muaj ntau yam zoo dua lwm cov gelling agents. Lawv yog non-toxic, non-irritating, thiab biodegradable. Lawv kuj tseem siv tau yooj yim thiab tuaj yeem tsim kom tau raws li cov kev xav tau tshwj xeeb. HPMC gels kuj tseem ruaj khov nyob rau ntau qhov kub thiab txias thiab pH qib.

Txawm hais tias qhov zoo no, muaj qee qhov tsis zoo rau kev siv HPMC gels. Lawv kim dua li lwm cov tshuaj gelling, thiab lawv tuaj yeem nyuaj rau yaj hauv qee cov kuab tshuaj. Tsis tas li ntawd, HPMC gels tsis muaj zog li lwm cov gelling cov neeg ua haujlwm, thiab lawv tuaj yeem ua rau muaj kev sib koom ua ke (kev sib cais ntawm cov gel rau hauv cov kua thiab cov txheej txheem).

Zuag qhia tag nrho, HPMC gels yog cov cuab yeej siv tau rau ntau yam kev siv. Lawv tsis muaj tshuaj lom, tsis ua rau khaus, thiab biodegradable, thiab tuaj yeem tsim tau raws li cov kev xav tau tshwj xeeb. Txawm li cas los xij, lawv kim dua li lwm cov tshuaj gelling, thiab tuaj yeem nyuaj rau yaj hauv qee cov kuab tshuaj. Tsis tas li ntawd, lawv tsis muaj zog li lwm cov tshuaj gelling, thiab tuaj yeem ua rau syneresis.