Yenziwa ngantoni i-ethylcellulose?

I-Ethyl cellulose yipolymer yokwenziwa ephuma kwi-cellulose yendalo, inxalenye yesakhiwo esiqhelekileyo kwiindonga zeeseli zesityalo.Ukuveliswa kwe-cellulose ye-ethyl kubandakanya ukuguqulwa kweekhemikhali ze-cellulose yendalo usebenzisa i-ethyl chloride kunye ne-catalyst ukuvelisa i-ethyl ether derivative ye-cellulose.

Inkqubo iqala ngokucocwa kwe-cellulose kwimithombo yezityalo, njenge-pulp yokhuni okanye ikotoni.I-cellulose ecocekileyo iyachithwa kumxube we-solvents, njenge-ethanol kunye namanzi, ukwenza isisombululo se-viscous.I-Ethyl chloride ke yongezwa kwisisombululo, kunye ne-catalyst, eququzelela ukusabela phakathi kwe-cellulose kunye ne-ethyl chloride.

Ngexesha lokusabela, i-molecule ye-ethyl chloride ithatha indawo yamanye amaqela e-hydroxyl kwikhonkco le-cellulose, okukhokelela ekubunjweni kwe-ethyl cellulose.Iqondo le-ethoxylation, okanye inani lamaqela e-ethyl aqhotyoshelwe kwiyunithi nganye ye-glucose kwikhonkco ye-cellulose, inokulawulwa ngexesha lokuphendula ukuvelisa i-cellulose ye-ethyl kunye neempawu ezahlukeneyo kunye neempawu zokunyibilika.

Emva kokuba impendulo igqityiwe, i-cellulose ye-ethyl isiphumo iyahlanjululwa kwaye yomiswe ukususa naziphi na izinyibilikisi eziseleyo okanye ukungcola.Imveliso yokugqibela ngumgubo omhlophe okanye omthubi onyibilikayo kuluhlu olubanzi lwezinyibilikisi eziphilayo, kodwa ezinganyibilikiyo emanzini.

Ngokubanzi, i-ethyl cellulose i-polymer yokwenziwa ephuma kwi-cellulose yendalo ngokusebenzisa inkqubo yokuguqulwa kwemichiza ebandakanya ukongezwa kwamaqela e-ethyl kwikhonkco le-cellulose.