Carboxymethyl cellulose (CMC) yog cov khoom siv ntau polymerctional siv hauv cov zaub mov, tshuaj pleev roj av, cov roj av, textiles thiab lwm yam kev lag luam. Nws cov ntsiab lus tseem ceeb muaj xws li cov tuab, ua kom raug tshem tawm, kev raug tshem tawm, dej khaws cia, kom siv lwm yam haujlwm, yog li nws tau siv dav hauv ntau thaj teb. Txawm li cas los xij, txawm tias nws tau ua tau zoo hauv ntau cov ntawv thov, CMC tseem muaj qee qhov tsis zoo thiab txwv tsis pub siv cov kev ntsuas lossis xav tau kev ntsuas tshwj xeeb rau cov kev tsis zoo no.
1. Txwv tsis pub solubility
Cov solubility ntawm CMC hauv dej yog tus yam ntxwv tseem ceeb, tab sis nyob rau qee qhov kev mob, lub solubility yuav txwv. Piv txwv li, cmc muaj solubility nyob rau hauv cov-ntsev ib puag ncig lossis cov dej siab-hardness. Nyob rau hauv lub siab-ntsev ib puag ncig, lub electrostatic repulsion ntawm cmc molecular charets yog txo, ua rau muaj kev sib xyaw ua ke, uas cuam tshuam rau nws solubility. Qhov no yog pov thawj tshwj xeeb thaum ua ntawv thov hauv dej hiav txwv lossis dej uas muaj cov zaub mov loj. Tsis tas li ntawd, cmc dissolves maj mam nyob rau hauv dej tsawg thiab yuav siv sij hawm ntev los ua kom tiav, uas yuav ua rau txo qis kev ua haujlwm.
2. Tsis zoo viscosity stabilab
Lub viscosity ntawm CMC yuav cuam tshuam los ntawm Ph, Kub, thiab ionic lub sijhawm siv. Nyob rau hauv acidic lossis alkaline mob, lub viscaline, viscaline ntawm CMC yuav txo qis, cuam tshuam nws cov nyhuv tuab. Qhov no yuav muaj kev phom sij ntawm qee cov ntawv thov uas xav tau ruaj khov viscosity, xws li kev npaj khoom noj thiab chaw muag tshuaj. Tsis tas li ntawd, nyob rau hauv cov kev mob siab, lub viscosity ntawm cmc yuav poob sai, ua rau muaj kev ua haujlwm tsawg hauv qee cov ntawv thov kev kub siab.
3. Cov biodegradiantability)
CMC yog hloov kho cellulose hloov uas muaj ib qho kev ua kom qeeb qeeb, tshwj xeeb hauv ib puag ncig ib puag ncig. Yog li ntawd, CMC muaj tus kuj tsis zoo rau biodegradity thiab yuav ua rau qee lub nra rau ib puag ncig. Txawm hais tias cmc zoo dua ntawm biodegradation dua qee cov hluavtaws polymers, nws cov txheej txheem degradation tseem siv sijhawm ntev. Hauv qee qhov kev thov ib puag ncig, qhov no yuav yog qhov kev txiav txim siab tseem ceeb, kev tshoov siab cov neeg kom saib rau lwm cov kev pabcuam zoo ib puag ncig.
4. Cov teeb meem tshuaj ruaj khov
CMC yuav tsis ruaj khov nyob rau hauv qee qhov chaw tshuaj noj, xws li muaj zog acid, muaj zog lossis oxidative. Kev ua tsis zoo lossis tshuaj lom neeg yuav tshwm sim. Qhov no tsis muaj peev xwm txwv nws siv rau hauv ib puag ncig tshuaj tshwj xeeb. Nyob rau hauv ib puag ncig oxidizing ib puag ncig, CMC tuaj yeem dhau oxidative tsis txaus siab, yog li poob nws txoj haujlwm. Ib qho ntxiv, hauv qee cov kev daws teeb meem muaj hlau ions, cms tuaj yeem koom tes nrog cov hlau, cuam tshuam nws solubility thiab ruaj khov.
5. Tus nqi siab
Txawm hais tias cmc yog cov khoom siv nrog kev ua tau zoo, nws tus nqi ntau lawm yog qhov tseem ceeb, tshwj xeeb yog cmc cov khoom lag luam nrog kev ua kom siab siab lossis cov haujlwm tshwj xeeb. Yog li ntawd, hauv qee cov ntawv thov raug nqi, kev siv CMC yuav tsis muaj nyiaj txiag. Qhov no tej zaum yuav cov tuam txhab sai los txiav txim siab lwm txoj hauv kev siv tau zoo dua thaum xaiv cov kev xaiv thickeners lossis stabilizers, txawm tias cov kev xaiv no yuav tsis zoo li CMC hauv kev ua tau zoo.
6. Tej zaum yuav muaj cov khoom lag luam hauv cov txheej txheem ntau lawm
Cov txheej txheem ntau lawm ntawm CMC koom nrog cov tshuaj kho mob ntawm cellulose, xws li socium carboxylic acid, etc. Cov tshuaj no yuav cuam tshuam kev ua tau zoo ntawm cmc lossis qhia cov khoom tsis txaus ntseeg nyob rau qee yam kev mob. Tsis tas li ntawd, cov tshuaj ntxuav tshuaj lom neeg siv hauv cov txheej txheem ntau lawm yuav muaj qhov tsis zoo rau ib puag ncig yog tias lawv tsis tau daws tau zoo. Yog li no, txawm hais tias cmc nws tus kheej muaj ntau cov khoom zoo heev, ib puag ncig thiab kev noj qab haus huv ntawm nws cov txheej txheem ntau lawm kuj yuav tsum tau txiav txim siab.
7. Txwv biocompatibility
Txawm hais tias CMC tau siv dav hauv cov tshuaj thiab cov tshuaj pleev ib ce thiab muaj cov tshuaj pleev ib ce zoo, nws biocompatibility kuj tseem tsis txaus hauv qee cov ntawv thov. Piv txwv li, qee kis, CMC yuav ua rau tawv nqaij me me lossis kev ua xua, tshwj xeeb tshaj yog thaum siv cov kev muaj zog lossis ntev ntev. Tsis tas li ntawd, cov metabolism thiab tshem tawm ntawm CMC hauv lub cev yuav siv sijhawm ntev, uas tej zaum yuav tsis zoo tshaj plaws hauv qee lub tshuab tshuaj.
8. Tsis muaj cov khoom siv tsis txaus
Raws li cov tuab thiab xas loj, CMC muaj cov khoom siv hluav taws xob tsawg, uas yuav yog qhov muaj txiaj ntsig zoo hauv qee cov ntaub ntawv uas xav tau lub zog siab lossis muaj zog elasticity. Piv txwv li, hauv qee cov ntawv nyeem lossis cov khoom siv sib xyaw nrog cov kev ua kom muaj zog, daim ntawv thov CMC yuav txwv lossis nws yuav tsum tau siv ua ke nrog lwm cov khoom siv cov khoom siv kho.
Raws li cov khoom siv dav ntau cov khoom siv, Carboxymethyl cellulose (CMC) muaj ntau qhov zoo, tab sis nws tsis zoo thiab txwv tsis tuaj yeem tsis quav ntsej. Thaum siv CMC, yam xws li nws solubility, tshuaj lom neeg ruaj khov, kev cuam tshuam ib puag ncig thiab tus nqi yuav tsum ua tib zoo txiav txim siab raws li cov kev thov tshwj xeeb. Ib qho ntxiv, yav tom ntej kev tshawb nrhiav thiab kev nthuav dav yuav ntxiv txhim kho kev ua tau zoo ntawm CMC thiab kov yeej txoj kev tsis txaus siab, yog li nthuav nws cov ntawv thov muaj peev xwm ntau hauv cov teb.
Lub sij hawm Post: Aug-23-2024