Hydroxypropyl methylcellulose yog ib qho zoo kawg nkaus nonionic sib xyaw ether ntawm cellulose uas tau hloov pauv kev lag luam tshuaj.Lub polymer yog synthesized los ntawm kev hloov tej yam ntuj tso cellulose tau los ntawm ntoo los yog paj rwb.HPMC feem ntau yog siv nyob rau hauv ntau yam kev siv vim nws cov khoom zoo heev xws li thickening, suspending, emulsifying, lubricating thiab dej tuav.
Tsis tas li ntawd, HPMCs muaj kev tswj hwm zoo tshaj qhov tso tawm cov khoom xyaw nquag hauv cov tshuaj sib txawv, suav nrog cov ntsiav tshuaj, tshuaj ntsiav, tshuaj pleev, thiab gels.Nrog nws cov purity siab thiab zoo heev biocompatibility, HPMC ua tau raws li cov qauv tshuaj siab tshaj plaws, txhim kho qhov zoo thiab kev ua tau zoo ntawm cov tshuaj.
Lub non-ionic xwm ntawm HPMC ua rau nws yog ib qho kev xaiv zoo rau ntau yam kev lag luam nrog rau cov khoom noj, tshuaj pleev ib ce thiab kev tsim kho.Raws li cov khoom noj khoom haus additive thickener, HPMC tuaj yeem txhim kho qhov kev ntxhib los mos thiab ruaj khov ntawm cov khoom ua tiav, thaum nyob rau hauv kev lag luam tshuaj pleev ib ce, nws plays lub luag hauj lwm tseem ceeb raws li ib tug binder, emulsifier thiab thickener.Hauv kev tsim kho, HPMC tuaj yeem siv los ua tus neeg saib xyuas dej, kua nplaum thiab cov thickener los txhim kho qhov adhesion, durability thiab lub zog ntawm cov khoom siv hauv tsev.
Qhov kev ua tau zoo ntawm HPMC yog ntaus nqi los ntawm kev qhia txog hydroxypropyl thiab methyl pawg hauv cov pob txha cellulose.Hydroxypropyl (HP) pawg yog lub luag haujlwm rau kev ua kom muaj zog ntxiv, thaum methyl pawg txo cov hydrogen bonding thiab txhim kho cov dej solubility.Qib ntawm kev hloov ntawm HP thiab methyl pawg hauv HPMC yog qhov tseem ceeb hauv kev txiav txim siab nws cov khoom, suav nrog viscosity thiab solubility.
HPMC yog ib qho tseem ceeb ntawm kev tswj cov tshuaj xa tawm.Hauv cov kab ke no, HPMCs txhim kho cov tshuaj tso tawm raws li kev tswj hwm, kom ntseeg tau tias kev kho mob zoo dua, muaj zog bioavailability thiab txo cov kev mob tshwm sim.Cov polymer kuj tuaj yeem tsim tau rau hauv cov ntsiav tshuaj matrix, uas muaj cov khoom tso tawm, tso cai rau cov tshuaj tso tawm rau hauv lub cev mus rau lub sijhawm ntev.
Ib qho txiaj ntsig tseem ceeb ntawm HPMC yog nws cov biocompatibility.Cov cuab yeej no ua rau nws muaj txiaj ntsig zoo hauv kev tsim tshuaj rau kev tswj hwm qhov ncauj vim tias nws muaj kev nyab xeeb, tsis muaj tshuaj lom thiab tsis muaj zog nrog lub cev nqaij.Tsis tas li ntawd, HPMC muaj cov cuab yeej ua yeeb yaj kiab zoo heev thiab tsim nyog rau txheej txheej ntawm cov ntsiav tshuaj, tshuaj ntsiav thiab granules.
HPMC yog ib qho tshwj xeeb multifunctional polymer uas tuaj yeem siv rau ntau yam kev siv xws li tshuaj, tshuaj pleev ib ce, zaub mov thiab kev tsim kho.Nws cov khoom tshwj xeeb, suav nrog thickening, suspending thiab dej tuav, ua rau nws yog ib qho tseem ceeb ntawm cov khoom xyaw hauv cov qauv niaj hnub no.Nrog lawv cov solubility zoo heev, biocompatibility, thiab tswj kev tso tawm muaj peev xwm, HPMCs tau hloov kho kev lag luam xa tshuaj, txhim kho kev siv tshuaj, kev nyab xeeb, thiab zoo.Tsis muaj qhov tsis ntseeg tias HPMC tseem yuav ua lub luag haujlwm tseem ceeb hauv kev lag luam tshuaj.
Post lub sij hawm: Sep-08-2023