Carboxymethylcellose (cmc) thiab methylcellulose (MC) yog ob qho tib si derivpose ntawm cellulose, lub ntuj polymer pom nyob hauv cov phab ntsa ntawm tes ntawm cov nroj tsuag. Cov derivatives pom ntau yam kev lag luam vim lawv cov khoom tshwj xeeb. Txawm hais tias qhia tawm qhov zoo sib xws, CMC thiab MC muaj qhov sib txawv hauv lawv cov qauv siv tshuaj, cov khoom, kev siv, thiab siv tau.
1. Dememical qauv:
Carboxymethylcellulose (CMC):
CMC yog synthesized los ntawm etherification ntawm cellulose nrog chloroacetic acid, uas tau ua rau lub cell polulle caj qaum nrog pab pawg cellulose (-ch2cooth).
Cov qib degree (DS) hauv CMC yog hais txog qhov nruab nrab tus naj npawb ntawm Carboxymethyl pawg nyob rau hauv ib chav dej qab zib hauv lub cellulose chart. Cov ntsuas no txiav txim siab cov khoom ntawm CMC, suav nrog solubility, viscosity, thiab rheological tus cwj pwm.
Methylcellulose (MC):
MC yog tsim los ntawm cov pab pawg hauv hydroxyl hauv cellulose nrog methyl pawg (-ch3) los ntawm etherification.
Zoo ib yam li CMC, cov khoom ntawm MC tau cuam tshuam los ntawm cov qib kev hloov pauv, uas txiav txim siab txog methylation raws cov pob cellulose.
2.Solubility:
Carboxymethylcellulose (CMC):
CMC yog soluble hauv dej thiab ua pob tshab, cov ntsiab lus khov kho.
Nws cov solubility yog paph-nyob nrog, nrog solubility siab dua hauv Alkaline tej yam kev mob.
Methylcellulose (MC):
MC kuj soluble hauv dej, tab sis nws solubility yog qhov kub-muaj.
Thaum yaj hauv dej txias, mc ua cov gel, uas thim rov qab ua rau cua sov. Cov cuab yeej no ua rau nws haum rau cov ntawv thov uas yuav tsum tau tswj hwm gelation.
3.Tsis:
CMC:
Cov khoom ua pov thawj siab viscosity nyob rau hauv aqueous kev daws, pab txhawb nws cov khoom siv thickening.
Nws cov viscosity tuaj yeem hloov kho los ntawm kev kho kom haum raws li kev xav, qib hloov chaw, thiab Ph.
MC:
Qhia txog kev coj tus cwj pwm pom zoo ib yam li cmc thiab feem ntau yog feem ntau tsawg dua viscous.
Lub viscosity ntawm MC cov kev daws teeb meem tseem tuaj yeem tswj tau los ntawm kev hloov pauv xws li kub thiab siab.
4.film tsim:
CMC:
Cov ntaub ntawv ntshiab, cov yeeb yaj kiab hloov tau thaum ntiab tawm los ntawm cov kev daws teeb meem aqueous.
Cov yeeb yaj kiab no nrhiav cov ntawv thov hauv kev lag luam xws li ntim khoom noj thiab cov chaw muag tshuaj.
MC:
Kuj tseem muaj peev xwm ntawm kev tsim cov yeeb yaj kiab tab sis nyhav kom muaj nkig ntau piv rau cmc zaj duab xis.
5.Food kev lag luam:
CMC:
Dav siv raws li lub stabilizer, thickener, thiab emulsifier hauv cov khoom lag luam xws li cov mis nyuj khov, kua ntses, thiab hnav khaub ncaws.
Nws lub peev xwm los hloov cov qauv thiab qhov ncauj ntawm cov khoom noj ua rau nws muaj nuj nqis hauv cov khoom noj ua haus.
MC:
Siv rau cov hom phiaj zoo ib yam li CMC hauv cov khoom lag luam khoom noj, tshwj xeeb hauv cov ntawv thov tsim thiab ua kom ruaj khov.
6.phraceuticals:
CMC:
Siv nyob rau hauv kws tshuaj paus formualation yog cov binder, ua txhaum, thiab viscosity concorifier hauv ntsiav tshuaj raug.
Kuj tseem ua haujlwm hauv cov ntsiab lus zoo xws li cream thiab gels vim nws lub zog rheological.
MC:
Feem ntau siv los ua tuab thiab tus neeg sawv cev ntawm cov tshuaj, tshwj xeeb hauv cov tshuaj ua kua thiab cov kua paug ntawm qhov ncauj thiab ophthalmic.
7.Personal tu tu cov khoom:
CMC:
Pom nyob rau hauv ntau yam kev saib xyuas tus kheej xws li tshuaj txhuam hniav, zawv plaub hau, thiab muaj cov tawv nqaij tawv thiab cov neeg saib xyuas tsis huv.
MC:
Siv nyob rau hauv cov ntawv thov sib xws raws li CMC, pab txhawb rau cov kev ntxhib los mos thiab muaj kev ruaj khov ntawm kev saib xyuas tus kheej.
8.Nim cov ntawv thov:
CMC:
Ua haujlwm hauv kev lag luam xws li cov ntawv nyeem, thiab ceramics rau nws lub peev xwm los ua cov phau ntawv qhia txog, thiab dej tuav tus neeg saib xyuas.
MC:
Pom siv nyob rau hauv cov khoom siv tsim kho, pleev xim, thiab cov nplaum vim nws cov khoom siv tuab thiab khi.
Thaum Carboxymethylcelleculose (cmc) thiab methylcellulose (MC) yog ob qho kev coj txawv txav ntawm lawv cov qauv tshuaj lom neeg, solubpility profiles, thiab cov ntawv thov. Nkag siab cov kev sib txawv no yog qhov tseem ceeb rau kev xaiv qhov tsim nyog rau kev siv hauv ntau yam lag luam thiab cov tshuaj thiab kev siv cov ntawv thov. Seb nws puas xav tau cov tuab ph-rhiab tuab xws li CMC hauv cov khoom noj khoom haus, txhua qhov kev ua kom zoo nkauj uas muaj kev cuam tshuam nrog cov kev xav tau tshwj xeeb hauv cov kev cai.
Lub sij hawm ncua: Mar-22-2024