Umahluko phakathi kwe-CMC kunye ne-MHEC

I-Carboxymethylcellulose (CMC) kunye ne-Methyl hydroxyethyl cellulose (MHEC) zimbini iintlobo eziqhelekileyo ze-cellulose derivatives ezisetyenziswa ngokubanzi kumashishini ahlukeneyo.Babelana ngezinto ezifanayo kwisakhiwo sabo sekhemikhali kunye neempawu zomzimba, kodwa banakho ukungafani okuphambili okwenza ukuba bafanelekele izicelo ezahlukeneyo.Kwesi sincoko, siza kuphonononga umahluko phakathi kwe-CMC kunye ne-MHEC.

Ulwakhiwo lweMichiza
Zombini i-CMC kunye ne-MHEC ziphuma kwi-cellulose eziyi-polymers ezinyibilikayo emanzini.I-CMC ithathwe kwi-cellulose ngokuyiphendula nge-chloroacetic acid ukwazisa amaqela e-carboxymethyl, ngelixa i-MHEC iphuma kwi-cellulose ngokuyiphendula nge-ethylene oxide kunye ne-methyl chloride ukwazisa amaqela e-methyl kunye ne-hydroxyethyl.

Ukunyibilika
Omnye umahluko omkhulu phakathi kwe-CMC kunye ne-MHEC kukunyibilika kwazo emanzini.I-CMC inyibilika kakhulu emanzini kwaye inokwenza isisombululo esicacileyo, esibonakalayo nakwizigxina ezisezantsi.Ngokwahlukileyo, i-MHEC ayinyibiliki kancinci emanzini kune-CMC kwaye ngokuqhelekileyo idinga ukusetyenziswa kwe-solvent, njenge-ethanol okanye i-isopropyl alcohol, ukuchithwa ngokupheleleyo.

Viscosity
Zombini i-CMC kunye ne-MHEC zinokutyebisa izisombululo ezinamanzi kwaye zandise i-viscosity.Nangona kunjalo, i-CMC ine-viscosity ephezulu kune-MHEC, kwaye inokwenza i-gel-like consistency xa inyibilika emanzini.Oku kwenza i-CMC ilungele ukusetyenziswa kwizicelo apho ukutyeba okanye i-gelling ifuneka, njengakwishishini lokutya lokwenza iisosi kunye nezinxibo.I-MHEC, ngakolunye uhlangothi, ine-viscosity ephantsi kune-CMC kwaye isetyenziswa ngokuqhelekileyo njenge-thickener okanye i-rheology modifier kwizicelo apho isisombululo esincinci sifunekayo.

pH Uzinzo
I-CMC ngokuqhelekileyo izinzile ngaphezu koluhlu olubanzi lwamaxabiso e-pH kune-MHEC.I-CMC izinzile kuzo zombini iindawo ezineasidi kunye ne-alkaline, eyenza ilungele ukusetyenziswa kushishino lokutya, apho ixabiso le-pH linokwahluka ngokubanzi.Ngokwahlukileyo, i-MHEC izinzile ngakumbi kwi-acidic encinci ukuya kwiindawo ezingathathi hlangothi ze-pH kwaye iyakwazi ukuhlahlela kumaxabiso aphezulu e-pH.

Uzinzo lobushushu
Zombini i-CMC kunye ne-MHEC zizinzile kuluhlu olubanzi lwamaqondo obushushu, kodwa kukho ukungafani ekuzinzeni kwabo kwe-thermal.I-CMC izinzile ngakumbi nge-thermal kune-MHEC kwaye inokugcina iipropati zayo kumaqondo aphezulu.Oku kwenza i-CMC ilungele ukusetyenziswa kwizicelo apho amaqondo obushushu aphezulu abandakanyekayo, njengokuveliswa kwezinto ezibhakiweyo.I-MHEC, ngakolunye uhlangothi, inozinzo oluphantsi lwe-thermal kune-CMC kwaye inokuphuka kumaqondo aphezulu aphezulu.

Usetyenziso
Zombini i-CMC kunye ne-MHEC zisetyenziswa kwiintlobo ngeentlobo zezicelo kuwo wonke amashishini ahlukeneyo.I-CMC iqhele ukusetyenziswa njenge-thickener, i-stabilizer, kunye ne-emulsifier kushishino lokutya kwiimveliso ezinje nge-ayisikrimu, iisosi, kunye nezinxibo.Ikwasetyenziswa kwishishini loxubo-mayeza njengesibophelelo, sokuchitha, kunye ne-arhente exhomayo.I-MHEC isetyenziswa ngokuqhelekileyo njenge-thickener, i-binder, kunye ne-rheology modifier kwishishini lokwakha kwiimveliso ezifana neepeyinti, iingubo, kunye ne-adhesives.Ikwasetyenziswa kwishishini lamayeza njenge-binder, disintegrant, kunye ne-arhente yokukhululwa okuqhubekayo.

Ukuqukumbela, i-CMC kunye ne-MHEC zimbini ze-cellulose derivatives ezabelana ngokufana kwisakhiwo sazo samakhemikhali kunye neempawu ezibonakalayo kodwa zineentlukwano ezihlukeneyo kwi-solubility yazo, i-viscosity, ukuzinza kwe-pH, ukuzinza kweqondo lokushisa, kunye nokusetyenziswa.