Sodium carboxymethyl cellulose (CMC) yog cov polmer compound compone siv nyob rau ntau yam khoom noj, tshuaj, tshuaj pleev ib ce, ntawv, thiab drilling roj. Nws yog tau los ntawm kev hloov kho tshuaj lom neeg ntawm cellulose. Nws cov qauv kev teeb tsa yog tias qee pawg hydroxyl hauv lub cellulose molecules tau hloov los ntawm cov pab pawg carboxymethyl) thiab ua ke nrog sodboxymethyl pab pawg los tsim cov dej-soluble sodium ntsev.
1. Tshuaj Txhuam Cov Qauv thiab Khoom
Cov tshuaj siv tshuaj lom neeg ntawm cov sodium carboxymethyl cellulose yog (C6h7o2 (Oh) 2ch2cola) n, uas muaj cov solubility thiab dej nqus. Nws cov qauv theem pib yog ib txoj kab lia cov qauv ntawm cellulose Monomers-cov hmoov av. Tom qab kev hloov kho tshuaj lom neeg, qee lossis tag nrho cov pawg hydroxyl ntawm cov pab pawg cellules tau hloov los ntawm cov roj av-solub nrog cov nqi tsis zoo. Tshwj xeeb, cov molecular chart ntawm sodium carboxymethyl cellulose muaj ntau ntawm cov roj carboxymethyl, muab nws zoo solubility thiab voscosity dab yam.
CMC muaj cov khoom tseem ceeb hauv qab no:
Dej solubility: sodium carboxymethyl cellulose tuaj yeem yaj nyob rau hauv dej los ua ib qho kev sib xyaw ua ke colloloid daws.
Viscosity: CMC aqueous daws muaj cov viscosity siab, thiab cov viscosity yog hais txog nws cov molecular hnyav thiab kev daws teeb meem.
Stability: CMC muaj kev ruaj khov kom acid, alkali thiab kub, tab sis nyob rau hauv ib puag ncig muaj zog lossis alkali uas muaj tsawg.
Kev kho tau: los ntawm kev kho cov molecular hnyav thiab qib degree hloov chaw ntawm CMC, nws lub cev thiab tshuaj lom neeg tuaj yeem tswj tau precisely.
2. Npaj txoj kev
Sodium Carboxymethyl cellulose feem ntau yog npaj los ntawm kev rov ua cellulose thiab sodium chloroacetate hauv ib puag ncig alkaline. Cov kauj ruam tshwj xeeb yog raws li hauv qab no:
Pretriceator ntawm cellulose: thawj zaug, cellulose (xws li paj rwb rwb fiber ntau) yog ntxuav kom tshem tawm impurities.
Cov tshuaj tiv thaiv alkalinization: cellule cellulose yog reodium hydroxide tov rau cais cov cellulose molecule los tsim cov ntsev nquag soculium ntsev.
Hloov pauv hloov pauv: nyob rau hauv Alkaline cov kev mob, sodium chloroacetate ntxiv, thiab sodium cellulose alolecules tau hloov los ntawm cov pawg carboxymethyl.
Ntxuav thiab ziab: tom qab cov tshuaj tiv thaiv tiav, cov khoom lag luam yog ntxuav nrog dej impurities, thiab thaum kawg ua kom huv si brocoksyl cellulose tau txais.
3. Daim ntawv thov teb
Vim nws cov dej so zoo, thickening thiab ruaj khov, sodium carboxymethyl cellulose yog dav siv nyob rau hauv cov teb nram qab no:
Kev lag luam khoom noj khoom haus: ua cov thickener, emiulsifier, nelly, soc.cult yog los txhim kho lub neej, txuas lub txee lub neej thiab nce kev sib xws.
Kws Tshuaj Kho Mob: Ua phau ntawv, tus neeg sawv cev tso tawm, muab cov tshuaj tsw qab rau cov tshuaj, kua, pleev kua thiab lwm yam kev npaj. Tsis tas li ntawd, CMC tseem siv los ua cov khoom hemostatic rau kev phais thiab cov ntaub ntawv kho hniav.
Kev Lag Luam Kev Lag Luam: Siv rau hauv kev tsim cov tshuaj pleev, cov tshuaj pleev xim, tshuaj txhuam hniav, cov tshuaj txhuam hniav, cov tshuaj txhuam hniav thiab lwm yam ua cov tuab thiab tawv. Nws tuaj yeem hloov kho cov viscosity ntawm cov khoom thiab txhim kho cov neeg siv kev paub.
Papermaking kev lag luam: Ua ib tus neeg saib xyuas kev kho mob saum npoo av rau daim ntawv, CMC tuaj yeem txhim kho lub zog, dej tsis kam thiab cov hmoov av ntawm cov ntawv.
Roj Drilling: Thaum lub sijhawm ua haujlwm drilling, CMC yog siv rau hauv cov kua dej drilling thiab siv cov pob zeb txiav tawm ntawm lub laum me me thiab ruaj khov phab ntsa zoo.
Textile kev lag luam: raws li zas xim dispersant thiab luam ntawv luam tawm cov khoom ntxiv, CMC tuaj yeem txhim kho qhov dyeing uniformity thiab zoo ntawm textiles.
4. Kev Nyab Xeeb thiab ib puag ncig
Sodium Carboxymethyl cellulose feem ntau yog qhov kev pom zoo, thiab cov tshuaj tau pom zoo los ntawm cov kev noj zaub mov hauv ntiaj teb codex thiab cov kev tswj hwm hauv ntau lub teb chaws. Nws tsis muaj tshuaj lom rau tib neeg lub cev thiab yuav tsis muaj qhov cuam tshuam loj rau ntawm ecological ib puag ncig, yog li nws tau siv dav.
Txawm li cas los xij, txawm li cas los ntawm cmc nws tus kheej yog ib puag ncig phooj ywg, nws cov txheej txheem ntau lawm yuav koom nrog kev siv tshuaj lom neeg tshuaj lom neeg thiab pov teeb meem tshuaj lom neeg. Yog li, nws yog ib qho yuav tsum tau them sai sai rau kev tiv thaiv ib puag ncig thaum lub sijhawm tsim khoom los txo cov tshuaj uas muaj teeb meem.
Sodium Carboxymethyl cellulose yog cov siv dav thiab cov khoom siv polymer. Nws cov thickening, ruaj khov thiab gelling cov khoom ua rau nws tseem ceeb rau ntau kev lag luam. Los ntawm cov zaub mov, tshuaj rau kev lag luam, CMC ua lub luag haujlwm tseem ceeb. Nrog kev nce qib nruam ntawm thev naus laus zis yav tom ntej, daim ntawv thov teb ntawm CMC yuav txuas ntxiv mus ntxiv.
Lub Sijhawm Post: Feb-20-2025