Uyini umehluko phakathi kwe-HEC ne-HEMC?

I-HEC (Hydroxyethyl Cellulose) kanye ne-HEMC (Hydroxyethyl Methyl Cellulose) womabili ama-polymer compounds atholakala ku-cellulose, i-polysaccharide eyenzeka ngokwemvelo etholakala ezitshalweni.Kokubili kusetshenziswe njengama-thickeners, stabilizers, kanye nama-emulsifiers emikhiqizweni eyahlukene, okuhlanganisa upende nama-coatings, ukudla, imithi, izimonyo, kanye nezicelo zezimboni.

Umehluko omkhulu phakathi kwe-HEC ne-HEMC usesakhiwo sazo samakhemikhali.I-HEC iyi-non-ionic cellulose derivative, kuyilapho i-HEMC iphuma ku-ionic cellulose.I-HEC yakhiwe iqembu elilodwa le-hydroxyethyl elinamathiselwe kumgogodla we-cellulose, kuyilapho i-HEMC yakhiwe ngamaqembu amabili e-hydroxyethyl axhunywe kumgogodla we-cellulose.

I-HEC iyi-polymer encibilika emanzini esetshenziswa njenge-ejenti ejiya emikhiqizweni eyahlukene, okuhlanganisa upende & okokugcotshwa, ukudla, imithi, nezimonyo.Isetshenziselwa ukwandisa i-viscosity yomkhiqizo, ithuthukise ukuzinza kwayo, futhi inikeze ukuthungwa okubushelelezi.Iphinde isetshenziswe njenge-emulsifier ukusiza ukugcina izithako zingahlukani.

I-HEMC futhi iyi-polymer encibilika emanzini esetshenziswa njenge-ejenti yokuqina.Isetshenziswa emikhiqizweni eyahlukene, okuhlanganisa ukwakhiwa, ukudla, imithi, kanye nezimonyo.Isetshenziselwa ukwandisa i-viscosity yomkhiqizo, ithuthukise ukuzinza kwayo, futhi inikeze ukuthungwa okubushelelezi.Iphinde isetshenziswe njenge-emulsifier ukusiza ukugcina izithako zingahlukani.

I-HEC isetshenziswa kakhulu emikhiqizweni kapende neyokunamathela, kuyilapho i-HEMC isetshenziswa kakhulu ekwakheni nasezimonyoni.I-HEC iphumelela kakhulu ekwandiseni i-viscosity yomkhiqizo kune-HEMC, futhi futhi izinzile ezixazululweni ze-acidic ne-alkaline.I-HEMC iphumelela kakhulu ekunikezeni ukuthungwa okubushelelezi kumkhiqizo kune-HEC, futhi futhi izinzile emazingeni okushisa aphezulu.

Kafushane, umehluko omkhulu phakathi kwe-HEC ne-HEMC usesakhiwo sazo samakhemikhali.I-HEC iyi-non-ionic cellulose derivative, kuyilapho i-HEMC iphuma ku-ionic cellulose.I-HEC isetshenziswa kakhulu ekupendeni nasezintweni zokumboza, emikhiqizweni yokuhlanza, kuyilapho i-HEMC isetshenziswa kakhulu ekwakheni nasezimonyoni.I-HEC iphumelela kakhulu ekwandiseni i-viscosity yomkhiqizo, kuyilapho i-HEMC iphumelela kakhulu ekunikezeni ukuthungwa okubushelelezi.