Cov yam ntxwv ntawm CMC

Sodium carboxymethyl cellulose (CMC) yog cov dej-soluble polymer muab tau los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag cell phab ntsa. Nov yog qee qhov tseem ceeb ntawm CMC:

1. Dej solubility: CMC soluble heev nyob rau hauv dej thiab lwm yam aqueous daws, tsim kom meej meej los yog me ntsis turbid daws.
2. Viscosity: CMC tuaj yeem tsim cov kev daws teeb meem hnyav, nyob ntawm seb qhov kev hloov pauv, qhov hnyav molecular, thiab cov concentration. Nws yog feem ntau siv los ua cov thickener thiab rheology hloov kho hauv ntau daim ntawv thov.
3. pH stability: CMC yog ruaj khov nyob rau ntau yam ntawm pH qhov tseem ceeb, feem ntau ntawm pH 2 txog 12. Nws muaj peev xwm tswj tau nws cov thickening thiab stabilizing zog nyob rau hauv acidic, nruab nrab, thiab alkaline tej yam kev mob.
4. Ionic lub zog rhiab heev: CMC tuaj yeem cuam tshuam los ntawm lub zog ionic ntawm cov tshuaj. Nws tuaj yeem tsim cov gels tsis muaj zog lossis poob nws cov khoom thickening hauv cov dej ntsev.
5. Hygroscopicity: CMC yog hygroscopic, txhais tau tias nws tuaj yeem nqus dej los ntawm ib puag ncig. Cov cuab yeej no tuaj yeem cuam tshuam nws kev tuav, khaws cia, thiab kev ua haujlwm hauv qee yam kev siv.
6. Film-forming zog: CMC tuaj yeem tsim cov yeeb yaj kiab hloov tau yooj yim thiab pob tshab thaum nws qhuav. Nws tuaj yeem siv los ua cov khoom siv txheej txheej lossis cov ntawv khi rau ntau yam kev siv.
7. Biodegradability: CMC yog biodegradable thiab environmentally friendly. Nws tuaj yeem degraded los ntawm cov enzymes tsim los ntawm cov kab mob hauv cov av lossis dej.

Zuag qhia tag nrho, sodium carboxymethyl cellulose yog ntau yam polymer nrog ntau yam khoom uas ua rau nws muaj txiaj ntsig hauv ntau yam kev siv, xws li zaub mov, tshuaj, kev saib xyuas tus kheej, thiab cov khoom lag luam.