Cuam tshuam cov ntsiab lus ntawm sodium carboxymethylcelloscospose viscosity

Lub viscosity ntawm sodium carboxymethylcelleculose (CMC) cov kev daws teeb meem yuav cuam tshuam los ntawm ntau yam. Nov yog qee qhov tseem ceeb ntawm cov ntsiab lus tseem ceeb uas cuam tshuam rau viscosity ntawm cmc daws teeb meem:

1. Kev haum: viscosity ntawm cmc daws feem ntau nce nrog kev nce siab. Kev txiav txim siab dua ntawm CMC ua rau ntau cov chains polymer ntau dua hauv kev daws teeb meem, ua rau muaj ntau dua molecular entanglement thiab siab dua viscosity. Txawm li cas los xij, muaj feem ntau ib qho kev txwv rau qhov viscosity nce nyob rau ntau dua kev xav vim yog cov kev daws teeb meem xws li kev daws teeb meem polyment.
2. Qib ntawm kev hloov pauv (DS): Cov degree hloov pauv rau cov neeg muaj pes tsawg tus ntawm Carboxymethyl ib pawg nyob rau hauv lub cellulose chav tsev. CMC nrog cov DS ntau dua siab yuav muaj cov viscosity ntau dua vim tias nws muaj cov pab pawg ua ke ntau dua thiab kev tiv thaiv ntau dua.
3. Molecular qhov hnyav: qhov hnyav molecular ntawm CMC tuaj yeem cuam tshuam nws viscosity. Ntau dua molecular hnyav CMC feem ntau ua rau muaj kev sib tw viscosity vim muaj nce saw entanglement thiab ntev dua polymer chains. Txawm li cas los xij, ntau dhau molecular hnyav cmc kuj tseem tuaj yeem ua rau viscosity muaj kev daws teeb meem nyob rau hauv thickening efficiency.
4. Kub: Qhov kub muaj qhov cuam tshuam loj rau lub viscosity ntawm cmc daws teeb meem. Feem ntau, viscosity txo li kub nce ntxiv vim yog txo cov polymer-cov kuab tshuaj sib txuas lus thiab nce molecular musility. Txawm li cas los xij, cov nyhuv ntawm qhov kub thiab txias rau viscosity tuaj yeem sib txawv nyob ntawm qhov xwm txheej xws li lub polymer concentration, hnyav hnyav, thiab daws pH.
5. PH: Cov Ph Phaj tuaj yeem cuam tshuam nws viscosity vim kev hloov pauv ntawm polymer ionization thiab conformation. CMC feem ntau yog cov vencous ntau dua ntawm cov nqi ntau dua vim tias cov pab pawg carbeeth, ua kom muaj zog, ua kom muaj zog, ua rau muaj zog hauv nruab nrab ntawm polymer chains. Txawm li cas los xij, kev mob siab heev tuaj yeem ua rau kev hloov pauv ntawm polymer solubility thiab kev sib xyaw, uas tuaj yeem cuam tshuam sib txawv raws li cov qib CMC qib thiab tsim qauv.
6. Cov ntsiab lus ntsev: Muaj cov ntsev hauv qhov kev daws teeb meem tuaj yeem cuam tshuam rau cov kev daws teeb meem ntawm CMC cov txiaj ntsig thiab kev sib txuas lus ntawm cov ion-polymer. Muaj qee kis, qhov sib ntxiv tau ntxiv tuaj yeem nce viscosity los ntawm kev cuam tshuam viscosity los ntawm kev cuam tshuam polymer-kuab tshuaj thiab txhawb nqa polymer.
7. Shear tus nqi: Lub viscosity ntawm CMC cov kev daws tau kuj tseem tuaj yeem nyob ntawm tus nqi shear lossis tus nqi ntawm kev ntxhov siab yog thov rau kev daws teeb meem. CMC cov ntsiab lus qhia txog kev coj ua shear-theb Qhov kawg ntawm shear thinning tuaj yeem sib txawv raws li cov ntsiab lus xws li lub polymer concentration, hnyav hnyav, thiab daws Ph.

Lub viscosity ntawm sodium carboxymethylcellpcellulose kev daws teeb meem suav nrog kev sib xyaw, kev hloov pauv, kub, ph, cov nqi ntsev. Nkag siab cov ntsiab lus no yog qhov tseem ceeb rau kev ua kom zoo rau lub viscosity rau cov kev siv hauv kev lag luam, chaw muag tshuaj, tshuaj pleev ib ce, thiab kev saib xyuas tus kheej.