Sodium Carboxymethyl Cellulose Properties

Sodium carboxymethyl cellulose (CMC) yog ntau yam dej-soluble polymer muab tau los ntawm cellulose, thiab nws muaj ob peb yam tseem ceeb uas ua rau nws muaj txiaj ntsig hauv ntau yam kev lag luam. Nov yog qee cov khoom tseem ceeb ntawm sodium carboxymethyl cellulose:

1. Dej Solubility: CMC yog soluble hauv dej, tsim kom meej thiab khov kho. Cov cuab yeej no tso cai rau kev sib koom ua ke yooj yim rau hauv aqueous systems xws li kev daws teeb meem, kev ncua, thiab emulsions.
2. Viscosity: CMC nthuav tawm cov khoom thickening zoo, ua rau nws muaj peev xwm ua kom cov viscosity ntawm cov kua formulations. Lub viscosity ntawm CMC cov kev daws teeb meem tuaj yeem hloov kho los ntawm ntau yam xws li concentration, molecular hnyav, thiab qib kev hloov pauv.
3. Zaj duab xis-Forming: CMC muaj cov khoom ua yeeb yaj kiab, tso cai rau nws los tsim cov yeeb yaj kiab nyias, hloov tau yooj yim, thiab cov yeeb yaj kiab zoo li qub thaum qhuav. Cov yeeb yaj kiab no muab cov khoom thaiv kev tiv thaiv, adhesion, thiab kev tiv thaiv, ua rau CMC haum rau kev siv xws li txheej, zaj duab xis, thiab cov nplaum.
4. Hydration: CMC muaj qhov siab ntawm hydration, txhais tau tias nws tuaj yeem nqus tau thiab khaws cov dej ntau. Cov cuab yeej no pab txhawb rau nws cov txiaj ntsig zoo li tus neeg sawv cev thickening, nrog rau nws lub peev xwm los txhim kho cov dej noo nyob rau hauv ntau yam formulations.
5. Pseudoplasticity: CMC nthuav tawm tus cwj pwm pseudoplastic, txhais tau tias nws cov viscosity txo qis hauv kev ntxhov siab thiab rov qab los rau nws qhov qub viscosity thaum qhov kev ntxhov siab raug tshem tawm. Cov cuab yeej no tso cai rau daim ntawv thov yooj yim thiab ua tiav hauv cov qauv xws li cov xim pleev xim, inks, thiab tshuaj pleev ib ce.
6. pH Stability: CMC ruaj khov tshaj pH ntau yam, los ntawm acidic mus rau alkaline tej yam kev mob. Nws tuav nws cov kev ua tau zoo thiab kev ua haujlwm hauv cov qauv nrog ntau qib pH, muab ntau yam hauv kev siv thoob plaws kev lag luam sib txawv.
7. Salt Tolerance: CMC nthuav tawm cov ntsev zoo, ua rau nws tsim nyog siv rau hauv cov qauv uas muaj cov electrolytes lossis cov ntsev ntau. Cov cuab yeej no tseem ceeb tshwj xeeb hauv kev siv xws li cov kua dej drilling, qhov twg cov ntsiab lus ntsev tuaj yeem yog qhov tseem ceeb.
8. Thermal Stability: CMC qhia tau hais tias zoo thermal stability, withstanding nruab nrab kub ntsib nyob rau hauv raug kev lag luam txheej txheem. Txawm li cas los xij, kev raug kub ntev ntev tuaj yeem ua rau degradation.
9. Compatibility: CMC yog sib xws nrog ntau yam ntawm lwm yam khoom xyaw, additives, thiab cov ntaub ntawv uas nquag siv nyob rau hauv industrial formulations. Nws tuaj yeem yooj yim muab tso rau hauv cov qauv tsim kom ua tiav qhov xav tau rheological thiab kev ua haujlwm zoo.

sodium carboxymethyl cellulose muaj ib qho kev sib xyaw ua ke ntawm cov khoom, nrog rau cov dej solubility, viscosity tswj, zaj duab xis-tsim muaj peev xwm, hydration, pseudoplasticity, pH stability, ntsev kam rau ua, thermal stability, thiab compatibility. Cov khoom no ua rau CMC muaj ntau yam thiab muaj txiaj ntsig ntxiv hauv ntau daim ntawv thov kev lag luam, suav nrog zaub mov, tshuaj, khoom siv tu tus kheej, textiles, xim, nplaum, thiab cov kua dej drilling.