HydroxyPropyyl methylulose (HPMC) yog siv cov tshuaj lom neeg uas tau siv dav hauv ntau thaj teb vim nws lub cev nqaij daim tawv thiab tshuaj lom neeg. Raws li ib qho kev sib zog polymer, HPMC yog lub luag haujlwm tseem ceeb hauv ntau qhov kev lag luam xws li tshuaj, zaub mov, tshuaj pleev ib ce, thiab cov khoom siv hauv tsev. Hauv cov ntawv thov no, HPMC muaj ntau yam haujlwm, ib qho ntawm cov tub lim.
Lub luag haujlwm ntawm HPMC ua tus muab tub lim
Hauv kev npaj tshuaj, HPMC feem ntau siv los ua cov muab tub lim rau cov tshuaj xws li cov ntsiav tshuaj thiab cov ntsiav tshuaj. Lub luag haujlwm tseem ceeb ntawm cov muab tub lim yog kom cov ntim thiab qhov hnyav ntawm ib ntsiav tshuaj rau qhov loj me thiab cov duab rau cov neeg mob coj. Raws li cov khoom siv tsis ua haujlwm, HPMC tsis muaj kev cuam tshuam nrog cov khoom xyaw nquag siv, yog li nws tuaj yeem siv kev nyab xeeb hauv ntau qhov kev npaj khoom. Tsis tas li ntawd, HPMC muaj cov kua zoo thiab kev hloov kho kom huv, ua rau nws zoo tshaj plaws ntsiav tshuaj filling cov khoom siv.
Cov Khoom Siv Physicochanemical ntawm HPMC
HPMC yog tsim los ntawm kev hloov kho tshuaj lom neeg ntawm cellulose thiab muaj cov dej solubility zoo thiab voscosity Haum tau lub peev xwm. Nws tuaj yeem yaj hauv dej txias lossis dej kub kom tsim cov tshuaj colloidal. Cov cuab yeej no ua rau nws dav siv los ua tuab thiab ruaj khov hauv kev lag luam khoom noj. Nyob rau hauv cov zaub mov, HPMC tsis tuaj yeem ua raws li cov muab tub lim, tab sis kuj tseem txhim kho cov qauv thiab saj ntawm cov zaub mov ntawm cov zaub mov.
Daim ntawv thov HPMC hauv lwm daim teb
Ntxiv rau nws daim ntawv thov hauv cov tshuaj thiab khoom noj, HPMC tseem ua lub luag haujlwm tseem ceeb hauv cov tshuaj pleev ib ce, cov ntaub ntawv tsim tsev thiab lwm thaj teb. Piv txwv li, hauv cov tshuaj pleev ib ce, HPMC tuaj yeem siv los ua emulsifier, thickener thiab stabilizer kom ua cov khoom ntawm cov khoom lag luam muag muag thiab yooj yim thov. Hauv cov ntaub ntawv hauv tsev, HPMC feem ntau yog siv nyob rau hauv kev tsim cov xis ci thiab cov tuab thiab khaws cov khoom siv thiab cov khoom siv ruaj khov ntawm cov khoom siv.
Kev nyab xeeb thiab biocompatibility
HPMC yog dav txawm tias muaj kev nyab xeeb vim nws cov biocompatibility thiab tsawg toxicity. Nws tsis yog nqus tau nyob rau hauv tib neeg lub cev, tab sis yog tawm ntawm lub cev nyob rau hauv nws daim ntawv qub, yog li nws yuav tsis muaj kev cuam tshuam tsis zoo rau tib neeg lub cev. Cov cuab yeej no ua rau nws xaiv qhov zoo tshaj plaws rau cov tshuaj thiab khoom noj khoom noj. Hauv kev npaj tshuaj, HPMC tsis yog tsuas yog siv los ua tus muab tub lim, tab sis kuj tseem siv tau raws li tus neeg sawv cev tso tawm los tswj cov tshuaj tso tawm hauv lub cev, yog li kev txhim kho txoj kev ua tau zoo.
HydroxyPropyyl methylulose yog ib qho tshuaj lom neeg uas tau siv dav siv raws li kev muab tub lim rau hauv cov tshuaj, khoom noj thiab lwm yam khoom lag luam. Nws tshwj xeeb lub cev thiab tshuaj lom neeg thiab kev nyab xeeb zoo ua rau nws ua tau zoo nyob rau hauv ntau yam kev siv. HPMC tsis tuaj yeem ua rau ua cov muab tub lim, tab sis kuj tseem ua cov tuab dua, emulsifier, stabilizer, itabilizer, thiab lwm yam. Qhov no ua rau HPMC ib cov khoom siv tsis tau hauv kev lag luam niaj hnub thiab muab kev txhawb nqa tseem ceeb rau kev loj hlob ntawm ntau yam kev lag luam.
Lub Sijhawm Post: Feb-17-2025