Qhov zoo ntawm HPMC (HydroxyProproyl methylulose) hauv kev lag luam tshuaj ntsuam kws tshuaj tau cuam tshuam nrog ntau yam, thiab nws cov khoom siv tau siv tau dav siv.
1. Zoo heev thickening thiab gelling cov khoom
HPMC yog cov dej-soluble cov khoom siv nrog cov khoom siv ua kom zoo heev thiab cov roj av. Hauv kev tsim khoom lag luam, HPMC tuaj yeem siv los ua cov neeg sawv cev tuab thiab tus txiv neej ua kom zoo dua los txhim kho lub viscosity thiab kev ruaj khov ntawm kev npaj. Qhov no yog qhov tshwj xeeb tshaj yog rau kev tso kua tso kua mis (xws li kua thiab tee), uas tuaj yeem txhim kho cov tshuaj ntawm cov tshuaj thiab xyuas kom meej thiab ruaj khov.
2. Biocompatibility
HPMC muaj cov biocompatibility zoo thiab biodegradability thiab tsim nyog rau siv hauv kev lag luam kws tshuaj, tshwj xeeb yog kev npaj ntawm kev npaj ntawm qhov ncauj thiab txhaj tshuaj. Vim tias nws tau muab los ntawm cov nroj tsuag, HPMC yog tsis muaj tshuaj lom thiab tsis muaj kev phom sij rau tib neeg lub cev, txo qis kev pheej hmoo ntawm kev phiv tshuaj.
3. Tshuaj Tso Tawm Tso Tawm
HPMC feem ntau siv los npaj tswj kev tso tawm thiab kev npaj tshuaj kom raug. Nws cov khoom lag luam hydration tuaj yeem tswj tau cov tshuaj tso tawm, ua tiav cov kev tswj hwm kev coj ua, txo cov zaus ntawm kev tswj hwm, thiab txhim kho kev ua raws li kev ua raws. Cov cuab yeej no yog qhov tshwj xeeb tshaj yog nyob rau hauv kev kho mob ntawm cov kab mob ntev, xws li bypertical thiab ntshav qab zib.
4. Cov khoom siv solubility thiab ruaj khov
HPMC yog yooj yim soluble hauv dej thiab tuaj yeem nyob ruaj khov nyob rau hauv ntau hom PHOTH. Qhov no tso cai rau nws kom dav siv nyob rau ntau hom kev npaj tshuaj. Txawm hais tias nyob hauv ib puag ncig acidic lossis alkaline, HPMC tuaj yeem tswj nws qhov kev ua tau zoo thiab ua kom cov tshuaj ruaj khov ntawm cov tshuaj.
5. Txhim khu cov xyoob xyoob muaj tshuaj
HPMC tuaj yeem txhim kho cov xyoob xyoob muaj cov tshuaj, tshwj xeeb tshaj yog rau cov tshuaj soluble tsis zoo. Los ntawm kev sib txuas nrog cov tshuaj, HPMC tuaj yeem txhim kho kev nqus cov tshuaj hauv lub cev thiab txhim kho kev kho mob. Qhov no yog qhov tseem ceeb tshaj plaws rau kev txhim kho cov tshuaj tshiab, tshwj xeeb yog cov tshuaj Molecule me me.
6. Kev tsim kom zoo heev
Hauv cov txheej txheem kws tshuaj, HPMC tuaj yeem siv los ua phau ntawv nyob hauv kev npaj cov ntsiav tshuaj thiab cov tsiav tshuaj kom txhim kho qhov kev tsim kho kom haum thiab tawv ntawm kev npaj. Nws tuaj yeem txhim kho cov tshuaj txhuam ntawm cov tshuaj, xyuas kom qhov kev sib txawv thiab ruaj khov ntawm cov ntsiav tshuaj, thiab txo cov ntawv tawg.
7. Kev Siv Feem Ntau
HPMC tau sib txuam nrog ntau yam tshuaj thiab tau dav siv nyob rau hauv ntau yam kev npaj xws li npaj cov emulsations, thiab lwm yam, qhia nws cov versatility hauv kev lag luam tshuaj.
8. Tus nqi tsawg
Piv nrog lwm cov ntaub ntawv polymer, HPMC muaj cov nqi tsim qis dua, thiab tshuaj lom neeg tuaj yeem hloov kho los ntawm kev hloov pauv ntawm cov pab pawg hydroxyl. Yog li ntawd, daim ntawv thov ntawm HPMC hauv kev lag luam kws tshuaj tsis yog txhim kho kev ua haujlwm ntawm cov khoom lag luam, tab sis kuj txo cov nqi ntau lawm.
Txoj kev thov thoob plaws ntawm HPMC hauv kev lag luam hauv kws tshuaj yog qhov txiaj ntsig ntawm nws ntau cov khoom zoo. Seb puas muaj kev txhim kho kev ruaj ntseg thiab cov tshuaj tsis txaus ntseeg thiab txhim kho cov khoom ntiag tug ntawm kev npaj, HPMC tau pom zoo heev. Nrog rau kev txhim kho kev siv tshuab, siv cov kev cia siab ntawm HPMC tseem muaj dav, thiab nws yuav tsum ua lub luag haujlwm ntau dua hauv kev txhim kho thiab kev tsim cov tshuaj tshiab.
Lub Sijhawm Post: Sep-26-2024