Carboxymethyl cellulose (CMC), tseem hu ua cellulose ntawm cov hniav uas pom tias kev siv thoob plaws ntau yam kev lag luam vim nws cov khoom lag luam.
Taw qhia rau Carboxymethyl cellulose (CMC)
Carboxymethyl cellulose yog dej-soluble cellulose derivative muab los ntawm cellulose, lub ntuj huv si pom hauv tsob ntoo phab ntsa. Nws yog tsim los ntawm cov tshuaj kho mob ntawm cellulose los ntawm kev qhia ntawm Carboxymethyl pab pawg (-ch2-npo. Qhov kev hloov kho no uas cuam tshuam rau cov khoom lag luam rau CMC, ua rau nws muaj nuj nqis hauv ntau daim ntawv thov muaj.
Chemistry ntawm Carboxymethyl cellulose
Tus txheej txheem carboxymkas cuam tshuam nrog cov tshuaj tiv thaiv cellulose nrog chloroacetic acid los yog nws sodium ntsev nyob rau hauv muaj alkali, feem ntau sodium hydroxide. Qhov tshuaj tiv thaiv no ua rau cov pab pawg hauv hydroxyl ntawm cov pob cellulose rau cov cab nraub qaum, ua rau tsim cov carboxymethyl cellulose.
Cov qib ntawm hloov pauv (DS), uas yog hais txog cov pawg carboxymethyl ib pawg ntawm cellulogu hauv cellulose, cuam tshuam rau cov khoom ntawm CMC. Cov DS qhov siab dua ua rau nce solubility thiab viscosity hauv dej.
Cov khoom ntawm Carboxymethyl cellulose
Carboxymethyl cellulose cov khoom ua tau ob peb cov khoom tseem ceeb uas ua rau nws haum rau ntau cov ntawv thov:
Dej solubility: CMC yog soluble heev hauv dej, sib sau meej, viscous daws teeb meem.
Viscosity: nws viscosity tuaj yeem tswj tau yooj yim los ntawm kev kho cov tsis muaj xws li kev kub siab, qib hloov chaw, thiab pH.
Zaj duab xis-tsim: CMC tuaj yeem tsim hloov pauv thiab pob tshab cov yeeb yaj kiab thaum ziab, ua rau nws muaj txiaj ntsig hauv kev siv ntau txheej.
Tus neeg saib xyuas tuab: nws ua haujlwm ua ib tus neeg sawv cev ua kom zoo, ruaj khov emulsions thiab ncua hauv ntau hom.
Pseudoprasticity: CMC Cov Khoom Taw Qhia Shear-thinning nws viscosity txo nyob rau hauv shear kev nyuaj siab, yooj yim txheej txheem.
Kev sib raug zoo: nws sib xws nrog lwm cov khoom xyaw uas siv nyob rau hauv cov zaub mov, chaw muag tshuaj, thiab tu tus kheej.
MAIN siv ntawm Carboxymethyl cellulose
1.Txoj kev lag luam khoom noj, cmc pab ntau lub hom phiaj:
Thickening thiab ruaj khov tus neeg sawv cev: nws siv nyob rau hauv cov khoom noj khoom noj xws li cov kua ntses, cov khoom hnav, thiab cov khoom noj siv mis los txhim kho viscosity thiab ruaj khov.
Kev ntxhib los mos hloov kho: CMC txhim kho kev ntxhib los mos, yogurt, thiab cov khoom siv bakery los ntawm kev tswj cov dej noo thiab tiv thaiv kom tsis txhob muaj kev tiv thaiv.
Kev hloov cov roj: Nws tuaj yeem siv los ua cov roj hloov hauv cov khoom noj muaj roj tsawg lossis cov zaub mov txo qis.
Gluten-Dawb Baking: CMC feem ntau ua haujlwm hauv gluten-dawb ci raws li binder thiab tapeurizer kom mimic cov khoom ntawm gluten.
2.CMC pom cov ntawv thov uas dav dav hauv cov chaw ua haujlwm:
Ntsiav tshuaj Cinding Tus Neeg Sawv Cev: Nws yog ib txwm siv los ua phau ntawv sau ua qauv rau imcesart coheseness thiab ntseeg tau tias ntsiav tshuaj ncaj ncees.
Cov neeg sawv cev tsis txaus ntseeg: CMC tshem tawm cov tshuaj tsis muaj tshuaj nyob rau hauv cov kua ua kua ua kua, kom muaj kev faib tawm cov kev faib tawm thiab muaj tseeb.
Viscosity Modifier: Hauv cov ntsiab lus zoo xws li cream thiab potions, cmc ua raws li viscosity concififier, txhim kho cov khoom lag luam muaj peev xwm thiab kev ruaj khov.
Cov kev daws teeb meem ophathalmic: CMC yog siv rau hauv qhov muag poob thiab cov khoom muag khoom muag los muab lubrication thiab sijhawm ntev ntawm cov nplaim hluav taws xob.
3.Cov khoom siv tus kheej, cmc ua hauj lwm ntau yam ua haujlwm:
Thickener: nws tuab ntxhua khaub ncaws, kho kom huv, thiab lub cev ntxuav, txhim kho lawv cov kev ntxhib los mos thiab txhim kho cov neeg siv kev paub.
Emulsion stabilizer: CMC stabilizes emulsions nyob rau hauv cream, pulty, thiab tshuaj pleev ib ce, tiv thaiv theem sib cais thiab tswj cov khoom lag luam.
Tus Neeg Sawv Cev Ncua Ntawv: CMC tshem tawm cov qauv tshuaj txhuam hniav hauv cov tshuaj txhuam hniav, kom muaj kev faib tawm cov khoom siv Abrasive thiab cov khoom xyaw nquag.
4.Meyond cov khoom noj, tshuaj, thiab cov saib xyuas kev saib xyuas, CMC muaj kev lag luam:
Kev lag luam ntawv: CMC tau ua haujlwm ua tus ntub dej ntxiv hauv kev sau ntawv los txhim kho daim ntawv muaj zog, rov ua kom tiav thiab pigments, thiab kua.
Textile kev lag luam: nws pabcuam ua tus sawv cev sizing, muab cov nyom ib ntus rau cov xov paj thiab cov ntaub so.
Kev DRILLING roj: hauv roj drilling kua, cm ua raws li cov viscosifier thiab kua dej txo, txhim kho kev ruaj khov thiab muaj kev ruaj khov ruaj khov.
Xim thiab pleev xim: CMC yog siv los ua cov xim xim thickening thiab ruaj khov nyob rau hauv cov xim pleev xim rau cov dej pleev xim thiab txheej txheem txaus ntshai thiab tiv thaiv sagging.
5. Lwm cov ntawv thov
Tsaus: CMC tau ntxiv rau cov tshuaj ntxuav thiab ntxuav cov khoom lag luam raws li cov tuab thiab stabilizer thiab stabilizer, txhim kho lawv qhov kev ua tau zoo thiab tsos.
Cov nplaum: Nws yog siv nyob rau hauv cov qauv nplaum kom haum viscosity, txhim kho cov hnab tawv, thiab txhim kho txoj hlua khi zog.
Kev thaij duab: Hauv kev yees duab ua yeeb yaj kiab, cms ua haujlwm ua cov phau ntawv sib cais ntawm lub teeb ci ntsa iab thiab cov nplaum rau cov yeeb yaj kiab.
Carboxymethyl cellulose, nrog nws cov cuab yeej tshwj xeeb thiab cov ntawv thov ntau yam, ua lub luag haujlwm tseem ceeb thoob plaws ntau yam lag luam. Los ntawm cov zaub mov thiab cov khoom siv rau cov khoom lag luam tus kheej thiab cov txheej txheem kev lag luam, cmc ua haujlwm ua cov txiaj ntsig ntxiv, txhim kho cov khoom lag luam, kev ruaj khov, thiab kev ua haujlwm. Nws cov kev siv dav dav nws qhov tseem ceeb ua cov khoom siv tseem ceeb hauv kev tsim khoom niaj hnub thiab kev tsim qauv. Raws li kev tshawb fawb thiab thev naus laus zis txuas ntxiv mus ua ntej, cov ntawv thov ntawm Carboxymethyl cellulose feem ntau yuav nthuav tawm cov kev sib tw tshiab rau ntau txoj kev sib tw thoob plaws ntau txoj haujlwm.
Lub Sijhawm Post: Feb-18-2025