Isakhiwo se-sodium carboxymethyl cellulose

Intshayelelo

I-Carboxymethyl cellulose (CMC) luhlobo lwe-cellulose derivative ephuma kwi-cellulose nge-carboxymethylation. Ngumgubo omhlophe, ongenavumba, ongenancasa osetyenziswa kakhulu ekutyeni, kumayeza, kwizinto zokuthambisa, nakwamanye amashishini. I-CMC yipolymer enyibilikayo emanzini enoluhlu olubanzi lokusetyenziswa ngenxa yeempawu zayo ezizodwa. Isetyenziswa njenge-ejenti yokuqina, i-stabilizer, i-emulsifier, kunye ne-arhente yokumisa. I-CMC ikwasetyenziswa njenge-colloid ekhuselayo ekwenzeni iphepha kunye nempahla.

Ulwakhiwo

Ubume be-carboxymethyl cellulose (CMC) yenziwe ngekhonkco leemolekyuli zeglucose ezidityaniswe kunye ngamabhondi e-glycosidic. Iimolekyuli zeglucose zidityaniswe enye kwenye ngeathom ye-oksijini enye, zenza ikhonkco lomgca. Ikhonkco lomgca ke i-carboxymethylated, oku kuthetha ukuba iqela le-carboxymethyl (CH2COOH) lifakwe kwiqela le-hydroxyl (OH) ye-molecule ye-glucose. Le nkqubo ye-carboxymethylation iphumela kwimolekyuli ye-carboxymethyl cellulose ehlawuliswa kakubi.

Ubume be-carboxymethyl cellulose inokumelwa ngale fomula ilandelayo:

(C6H10O5)n-CH2COOH

apho n iqondo lokutshintshwa (DS) yeqela le-carboxymethyl. Iqondo lokutshintshwa linani lamaqela e-carboxymethyl kwi-molecule ye-glucose. Iqondo eliphezulu lokutshintshwa, liphezulu i-viscosity yesisombululo se-CMC.

Iipropati I-Carboxymethyl cellulose inenani leempawu ezizodwa ezenza ukuba zibe luncedo kwiinkqubo ezahlukeneyo. Yipolymer enyibilikayo emanzini ezinzile kakhulu kwizisombululo ezinamanzi. Kananjalo ayinayo ityhefu, ayicaphukisi, kwaye ayinayo i-allergenic. I-CMC iyakwazi ukumelana nokuthotywa kwe-microbial kwaye ayichatshazelwa yi-pH okanye ubushushu. I-CMC yi-arhente eyomeleleyo yokuqina kwaye ingasetyenziselwa ukujiya iintlobo ezahlukeneyo zolwelo, kubandakanya ukutya, amayeza, kunye nezinto zokuthambisa. Ikwasetyenziswa njenge-emulsifier, i-stabilizer, kunye ne-arhente yokumisa. I-CMC ikwasetyenziswa njenge-colloid yokukhusela ekwenzeni iphepha kunye nempahla. Ukuqukumbela I-Carboxymethyl cellulose (CMC) luhlobo lwe-cellulose derivative ephuma kwi-cellulose nge-carboxymethylation. Ngumgubo omhlophe, ongenavumba, ongenancasa osetyenziswa kakhulu ekutyeni, kumayeza, kwizinto zokuthambisa, nakwamanye amashishini. I-CMC yenziwe ngetsheyini elandelelanayo yeemolekyuli zeglucose ezidityaniswe kunye ngamabhondi e-glycosidic kunye ne-carboxymethylated. Inenani leempawu ezizodwa ezenza ukuba luncedo kwiinkqubo ezahlukeneyo. I-CMC yi-arhente eyomeleleyo yokuqina kwaye ingasetyenziswa njenge-emulsifier, isizinzi, kunye ne-arhente yokuxhoma. Ikwasetyenziswa njenge-colloid ekhuselayo ekwenzeni iphepha kunye nempahla.