Sodium Carboxymethyl Cellulose (CMC)yog ib tug derivative ntawm cellulose thiab ib tug natural polymer khoom nrog zoo heev zog xws li dej solubility, viscosity thiab thickening. Vim nws zoo biocompatibility, non-toxicity thiab degradability, CMC yog dav siv nyob rau hauv cov zaub mov, tshuaj, tshuaj txhua hnub, papermaking, textiles, roj extraction thiab lwm yam lag luam. Raws li cov khoom siv tseem ceeb, tus qauv zoo ntawm CMC ua lub luag haujlwm tseem ceeb hauv kev sib txawv.
1. Cov yam ntxwv ntawm CMC
Cov qauv tshuaj ntawm AnxinCel®CMC yog los qhia carboxymethyl (-CH2COOH) pawg rau hauv cellulose molecules, kom nws muaj dej solubility zoo. Nws cov khoom tseem ceeb muaj xws li:
Dej solubility: CMC tuaj yeem tsim cov kua nplaum pob tshab hauv dej thiab siv dav los ua cov thickener lossis stabilizer hauv ntau cov khoom ua kua.
Thickening: CMC muaj viscosity siab thiab tuaj yeem ua kom cov kua sib xws thiab txo cov kua dej.
Kev ruaj ntseg: CMC nthuav tawm cov tshuaj lom neeg ruaj khov zoo hauv pH sib txawv thiab qhov kub thiab txias.
Biodegradability: CMC yog derivative ntawm natural cellulose nrog biodegradability zoo thiab zoo ib puag ncig kev ua tau zoo.
2. Cov qauv zoo ntawm CMC
Cov qauv zoo ntawm CMC sib txawv raws li qhov sib txawv ntawm kev siv thiab kev ua haujlwm. Cov hauv qab no yog qee qhov tseem ceeb ntawm cov qauv zoo:
Cov tsos mob: CMC yuav tsum yog dawb los yog tawm-dawb amorphous hmoov lossis granules. Yuav tsum tsis muaj impurities pom thiab txawv teb chaws.
Cov ntsiab lus noo noo: Cov dej noo ntawm CMC feem ntau tsis tshaj 10%. Cov dej noo ntau dhau yuav cuam tshuam rau qhov ruaj khov ntawm CMC thiab nws cov kev ua haujlwm hauv kev siv.
Viscosity: Viscosity yog ib qho tseem ceeb ntawm CMC. Nws feem ntau yog txiav txim siab los ntawm kev ntsuas qhov viscosity ntawm nws cov kua aqueous los ntawm viscometer. Qhov siab dua qhov viscosity, lub zog thickening ntawm CMC. Qhov sib txawv ntawm CMC cov kev daws teeb meem muaj qhov sib txawv viscosity, feem ntau ntawm 100-1000 mPa·s.
Degree of Hloov (DS tus nqi): Degree of Hloov (DS) yog ib qho tseem ceeb ntawm CMC. Nws sawv cev rau qhov nruab nrab ntawm cov carboxymethyl hloov pauv hauv txhua chav tsev piam thaj. Feem ntau, tus nqi DS yuav tsum nyob nruab nrab ntawm 0.6-1.2. Tus nqi DS tsawg dhau yuav cuam tshuam rau cov dej solubility thiab thickening nyhuv ntawm CMC.
Acidity lossis pH tus nqi: Tus nqi pH ntawm CMC cov tshuaj feem ntau yuav tsum nyob nruab nrab ntawm 6-8. Tus nqi pH qis dhau los yog siab dhau yuav cuam tshuam rau kev ruaj ntseg thiab siv cov nyhuv ntawm CMC.
Cov ntsiab lus tshauv: Cov ntsiab lus tshauv yog cov ntsiab lus ntawm inorganic teeb meem hauv CMC, uas feem ntau yuav tsum tsis pub tshaj 5%. Cov ntsiab lus tshauv siab dhau tuaj yeem cuam tshuam rau kev solubility ntawm CMC thiab qhov zoo ntawm daim ntawv thov zaum kawg.
Solubility: CMC yuav tsum tau yaj tag nrho hauv dej ntawm chav tsev kub kom tsim cov pob tshab, tshem tawm cov tshuaj. CMC uas tsis zoo solubility yuav muaj insoluble impurities los yog tsis zoo cellulose.
Cov ntsiab lus hlau hnyav: Cov ntsiab lus hlau hnyav hauv AnxinCel®CMC yuav tsum ua raws li lub teb chaws lossis cov qauv kev lag luam. Nws feem ntau yuav tsum tau hais tias tag nrho cov ntsiab lus ntawm cov hlau hnyav yuav tsum tsis pub tshaj 0.002%.
Microbiological ntsuas: CMC yuav tsum ua tau raws li cov qauv txwv microbial. Nyob ntawm kev siv, zaub mov-qib CMC, tshuaj-qib CMC, thiab lwm yam. yuav tsum tau tswj nruj me ntsis ntawm cov ntsiab lus ntawm cov kab mob phem xws li kab mob, pwm, thiab E. coli.
3. Cov qauv kev thov ntawm CMC
Cov teb sib txawv muaj cov kev cai sib txawv rau CMC, yog li cov qauv kev thov tshwj xeeb yuav tsum tau tsim. Cov qauv kev thov feem ntau suav nrog:
Kev lag luam khoom noj khoom haus: CMC qib zaub mov yog siv rau thickening, stabilization, emulsification, thiab lwm yam, thiab yuav tsum tau ua kom tau raws li cov qauv kev nyab xeeb khoom noj, xws li tsis muaj tshuaj lom, tsis muaj mob, tsis ua xua, thiab muaj dej solubility zoo thiab viscosity. CMC kuj tuaj yeem siv los txo cov roj cov ntsiab lus thiab txhim kho saj thiab kev ntxhib los mos ntawm cov zaub mov.
Kev lag luam kws tshuaj: Raws li kev siv tshuaj ntau dhau, tshuaj-qib CMC yuav tsum tau tswj nruj ntawm impurities, microbial cov ntsiab lus, tsis muaj tshuaj lom, tsis ua xua, thiab lwm yam. Nws lub luag haujlwm tseem ceeb suav nrog kev tswj cov tshuaj tso tawm, thickening, adhesives, thiab lwm yam.
Cov tshuaj niaj hnub: Hauv cov tshuaj pleev ib ce, tshuaj ntxuav tes thiab lwm yam tshuaj txhua hnub, CMC yog siv los ua cov thickener, stabilizer, suspending agent, thiab lwm yam, thiab yuav tsum muaj cov dej zoo solubility, viscosity thiab stability.
Papermaking kev lag luam: CMC yog siv los ua cov nplaum, txheej txheej, thiab lwm yam hauv cov txheej txheem papermaking, yuav tsum muaj viscosity siab, ruaj khov thiab muaj peev xwm tswj tau cov dej noo.
Oilfield exploitation: CMC yog siv los ua cov kua dej ntxiv hauv oilfield drilling kua kom viscosity thiab txhim khu fluidity. Cov ntawv thov no muaj cov kev xav tau siab rau kev solubility thiab viscosity-nce peev xwm ntawm CMC.
Nrog kev txhim kho txuas ntxiv ntawm kev tshawb fawb thiab thev naus laus zis,CMC, raws li ib tug natural polymer khoom, yuav txuas ntxiv mus nthuav nws daim ntawv thov cheeb tsam. Thaum tsim cov qauv zoo ntawm CMC cov ntaub ntawv, ntxiv rau kev txiav txim siab nws lub cev thiab tshuaj lom neeg lub zog, nws tseem yuav tsum tau ua tib zoo xav txog nws daim ntawv thov xav tau los xyuas kom meej tias nws tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntawm cov chaw lag luam sib txawv. Formulating cov ncauj lus kom ntxaws thiab meej cov qauv yog ib qho tseem ceeb los xyuas kom meej qhov zoo thiab daim ntawv thov nyhuv ntawm AnxinCel®CMC cov khoom, thiab nws kuj yog tus yuam sij rau kev txhim kho kev lag luam kev sib tw ntawm CMC cov ntaub ntawv.
Post lub sij hawm: Jan-15-2025