Kev sib xyaw ua kom zoo nkauj rau hydroxypropylencelylulose (HPMC) yog ib qho kev sib raug zoo hauv ntau yam kev lag luam suav nrog cov tshuaj pleev ib ce, tshuaj ntxuav tes thiab cov khoom lag luam. Nws yog ib qho tsis-ionic cellulose ioneting synthesized los ntawm kev hloov kho tshuaj lom neeg ntawm cov cellulose ntuj. HPMC yog ib qho kev ua haujlwm ntawm methylcellulose (MC) uas muaj cov khoom siv hydroxyprropylropylropal, txhim kho cov khoom zoo, thiab ua yeeb yaj kiab zoo heev.
Kev pleev xim kom zoo nkauj HPMC yog cov khoom noj-qib-qib-cov zaub mov noj thiab muaj kev nyab xeeb rau kev siv hluav taws xob, cov neeg sawv cev, emulsifiers thiab binders. Nws yog yooj yim soluble hauv dej, thiab nws cov viscosity tuaj yeem hloov kho los ntawm kev hloov nws cov qib ntawm qhov hnyav (DS) thiab hnyav hnyav ntawm cov polymer.
Hauv kev lag luam tshuaj pleev ib ce, cov tshuaj txhua hnub Qib HPMC yog siv los ua cov tuab thiab muaj cream, tshuaj pleev, tshuaj pleev li cas, thiab gels. Nws pab tsim kom muaj kev du, tsis-greasy kev ntxhib los mos thiab txhim kho cov khoom lag luam uas muaj zog. HPMC kuj tseem txhim kho kev sib kis tau, ua rau lawv yooj yim rau kis ntawm daim tawv nqaij.
Hauv cov khoom lag luam plaub hau, cov qib kom zoo nkauj HPMC yog siv los ua cov duab tiv thaiv ib puag ncig cov plaub hau ib puag ncig, tiv thaiv kev ua kom ya raws li kev poob thiab ntxiv ci. Nws kuj yog siv los ua cov tshuaj zawv plaub hau ua kom tuab hauv cov zawv plaub hau thiab cov khoom noj kom zoo, txhim kho nws cov kev ntxhib los mos thiab txhim kho nws cov kev ua tau zoo.
Nyob rau hauv kev lag luam xab npum, kev siv tshuaj txhua hnub HPMC yog siv los ua cov tuab thiab ruaj khov hauv cov xab npum thiab ntaub soric. Nws pab tswj cov tshuaj viscosity thiab tiv thaiv lawv los ntawm kev sib cais. HPMC kuj tseem txhim kho cov solubility ntawm cov khoom xyaw nquag hauv cov khoom, ua rau nws zoo dua.
Hauv kev lag luam kev saib xyuas ntawm tus kheej, txhua txhua tus kab mob HPMC yog siv los ua cov neeg raug tsim txom hauv cov khoom tu mob ntawm qhov ncauj xws li tshuaj txhuam hniav thiab cov tshuaj yaug qhov ncauj. Nws pab kom nquag cov khoom xyaw kom raug rau hauv cov khoom, kom ntseeg tau txawm faib. HPMC kuj tseem txhim kho cov qauv ntawm cov khoom lag luam, ua rau lawv nyiam tshaj.
Zuag qhia tag nrho, txhua hnub qib HPMC yog ib qho tshwm sim thiab qhov tseem ceeb hauv kev lag luam. Nws cov khoom tshwj xeeb, xws li dej siab khaws cia, txhim kho adhesion thiab kev ua yeeb yaj kiab zoo heev, ua rau nws zoo tagnrho rau ntau daim ntawv thov. Nws cov biodegradity thiab kev nyab xeeb kuj tseem ua rau nws xaiv tau rau cov khoom lag luam zoo nkauj los tsim cov khoom lag luam zoo thiab cov khoom kom nyab xeeb.
Hauv cov ntsiab lus, kom zoo nkauj qib HPMC yog qhov tseem ceeb txuas nrog ntau yam khoom muaj txiaj ntsig. Dav siv nyob rau hauv cov tshuaj pleev ib ce, tshuaj ntxuav, cov khoom ntiag tug thiab lwm yam kev lag luam. Nws cov versatility thiab kev nyab xeeb ua rau nws zoo tagnrho rau cov tuam ntxhab saib kom tsim cov khoom lag luam zoo thiab ib puag ncig.
Lub Sijhawm Post: Jul-19-2023