Focus on Cellulose ethers

Uyini umehluko phakathi kwe-HEC ne-CMC?

Uyini umehluko phakathi kwe-HEC ne-CMC?

I-HEC ne-CMC yizinhlobo ezimbili ze-cellulose ether, i-polysaccharide etholakala ezitshalweni futhi isetshenziswa emikhiqizweni eyahlukene.Ngenkathi zombili zitholakala ku-cellulose, zinezakhiwo ezihlukile kanye nezicelo.

I-HEC, noma i-hydroxyethyl cellulose, iyi-polymer engeyona i-ionic, encibilika emanzini etholakala ku-cellulose.Isetshenziswa njenge-ejenti yokuqina, i-emulsifier, i-stabilizer, kanye ne-ejenti emisa okwesikhashana emikhiqizweni eyahlukene, okuhlanganisa izimonyo, imithi, nemikhiqizo yokudla.I-HEC iphinde isetshenziselwe ukukhulisa i-viscosity yezixazululo ezinamanzi kanye nokwenza ngcono ukuthungwa kwemikhiqizo.Ibuye isetshenziselwe ukwenza iphepha, upende nezinto ezinamathelayo.

I-CMC, noma i-carboxymethyl cellulose, i-polymer encibilika emanzini etholakala ku-cellulose.Isetshenziswa njenge-ejenti yokuqina, i-emulsifier, i-stabilizer, kanye ne-ejenti emisa okwesikhashana emikhiqizweni eyahlukene, okuhlanganisa izimonyo, imithi, nemikhiqizo yokudla.I-CMC iphinde isetshenziselwe ukukhulisa i-viscosity yezixazululo ezinamanzi kanye nokwenza ngcono ukuthungwa kwemikhiqizo.Ibuye isetshenziselwe ukwenza iphepha, upende nezinto ezinamathelayo.

Umehluko omkhulu phakathi kwe-HEC ne-CMC usesakhiwo sazo samakhemikhali.I-HEC iyi-polymer engeyona i-ionic, okusho ukuthi ayinawo amashaji ahlotshaniswa nayo.I-CMC, ngakolunye uhlangothi, i-polymer ye-ionic, okusho ukuthi ineshaji elibi elihlotshaniswa nayo.Lo mehluko ekuphathweni uthinta indlela ama-polymers amabili asebenzisana ngayo namanye ama-molecule, futhi ngaleyo ndlela athinte izakhiwo zawo nokusebenza kwawo.

I-HEC incibilika kakhulu emanzini kune-CMC, futhi isebenza kangcono njenge-ejenti ejiya.Iphinde izinze kakhulu ezixazululweni ezine-asidi ne-alkaline, futhi imelana kakhulu nokushisa nokukhanya.I-HEC futhi imelana kakhulu nokuwohloka kwamagciwane, okwenza kube ukukhetha okungcono emikhiqizweni edinga isikhathi eside seshelufu.

I-CMC ayincibiliki kancane emanzini kune-HEC, futhi ayisebenzi kahle njenge-ejenti ejiya.Futhi ayizinzile ezixazululweni ezine-asidi ne-alkaline, futhi ayimelani nokushisa nokukhanya.I-CMC futhi isengozini yokuwohloka kwe-microbial, okuyenza ibe ukukhetha okufanele kancane emikhiqizweni edinga impilo yeshelufu ende.

Sengiphetha, i-HEC ne-CMC yizinhlobo ezimbili ze-cellulose ether ezinezakhiwo ezihlukile nezindlela zokusebenza.I-HEC incibilika kakhulu emanzini futhi isebenza kangcono njenge-ejenti yokujiya, kuyilapho i-CMC incibilika kancane emanzini futhi ingasebenzi kahle njenge-ejenti ejiya.I-HEC iphinde izinze kakhulu ezixazululweni ezine-asidi ne-alkaline, futhi imelana kakhulu nokushisa nokukhanya.I-CMC ayizinzile ezixazululweni ezine-asidi ne-alkaline, futhi ayimelani nokushisa nokukhanya.Womabili ama-polymers anezinhlobonhlobo zezinhlelo zokusebenza ekukhiqizeni izimonyo, imithi, imikhiqizo yokudla, iphepha, upende, nezinamathiselo.


Isikhathi sokuthumela: Feb-09-2023
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