Yintoni umahluko phakathi kwe-HEC kunye ne-CMC?

I-HEC kunye ne-CMC zimbini iintlobo ze-cellulose ether, i-polysaccharide efumaneka kwizityalo kwaye isetyenziswa kwiimveliso ezahlukeneyo. Ngelixa zombini ziphuma kwi-cellulose, zineempawu ezahlukeneyo kunye nokusetyenziswa.

I-HEC, okanye i-hydroxyethyl cellulose, i-non-ionic, i-polymer e-soluble yamanzi ephuma kwi-cellulose. Isetyenziswa njenge-ejenti yokuqina, i-emulsifier, i-stabilizer, kunye ne-ejenti yokumisa kwiimveliso ezahlukeneyo, kubandakanya izinto zokuthambisa, amayeza, kunye neemveliso zokutya. I-HEC ikwasetyenziselwa ukunyusa i-viscosity yezisombululo zamanzi kunye nokuphucula ukuthungwa kweemveliso. Ikwasetyenziswa nasekuveliseni iphepha, ipeyinti nezinto ezincamathelayo.

I-CMC, okanye i-carboxymethyl cellulose, yipolymer enyibilikayo emanzini ephuma kwi-cellulose. Isetyenziswa njenge-ejenti yokuqina, i-emulsifier, i-stabilizer, kunye ne-ejenti yokumisa kwiimveliso ezahlukeneyo, kubandakanya izinto zokuthambisa, amayeza, kunye neemveliso zokutya. I-CMC ikwasetyenziselwa ukunyusa i-viscosity yezisombululo ezinamanzi kunye nokuphucula ukuthungwa kweemveliso. Ikwasetyenziswa nasekuveliseni iphepha, ipeyinti nezinto ezincamathelayo.

Umahluko omkhulu phakathi kwe-HEC kunye ne-CMC kwisakhiwo sabo sekhemikhali. I-HEC i-polymer engeyiyo ionic, oku kuthetha ukuba ayinayo nayiphi na intlawulo ehambelana nayo. I-CMC, kwelinye icala, i-polymer ye-ionic, okuthetha ukuba inentlawulo embi ehambelana nayo. Lo mahluko ekuhlawuleni uchaphazela indlela iipolymers ezimbini ezisebenzisana ngayo nezinye iimolekyuli, kwaye ngaloo ndlela zichaphazela iipropati kunye nokusetyenziswa kwazo.

I-HEC inyibilika ngakumbi emanzini kune-CMC, kwaye isebenza ngakumbi njenge-ajenti yokujiya. Kwakhona izinzile ngakumbi kwizisombululo ze-acidic kunye ne-alkaline, kwaye iyakwazi ukumelana nobushushu kunye nokukhanya. I-HEC iphinda ixhathise ngakumbi ukuthotywa kwe-microbial, okwenza kube yinto engcono kakhulu kwiimveliso ezifuna ixesha elide leshelufu.

I-CMC ayinyibiliki kancinci emanzini kune-HEC, kwaye ayisebenzi kangako njenge-agent etyebisayo. Kananjalo ayizinzi kangako kwizisombululo ze-acidic kunye ne-alkaline, kwaye ayixhathisi kakhulu kubushushu nokukhanya. I-CMC ikwachaphazeleka ngakumbi kukuwohloka kwe-microbial, iyenza ibe lukhetho olungafanelanga kakhulu kwiimveliso ezifuna ubomi obude beshelufu.

Ukuqukumbela, i-HEC kunye ne-CMC zimbini iintlobo ze-ether ye-cellulose eneempawu ezahlukileyo kunye nokusetyenziswa. I-HEC inyibilika ngakumbi emanzini kwaye isebenza ngakumbi njenge-ejenti yokutyebisa, ngelixa i-CMC inganyibiliki kancinci emanzini kwaye ingasebenzi kakuhle njenge-agent etyebisayo. I-HEC iphinde izinze ngakumbi kwizisombululo ze-acidic kunye ne-alkaline, kwaye iyamelana nobushushu kunye nokukhanya. I-CMC ayizinzile kangako kwizisombululo ezineasidi kunye nealkaline, kwaye ayixhathisi kangako kubushushu nokukhanya. Zombini iipolymers zineendlela ezahlukeneyo zokusetyenziswa kwimveliso yezithambiso, amayeza, iimveliso zokutya, iphepha, ipeyinti kunye nokuncamathelisa.