Ukunyibilika kwe-sodium carboxymethyl cellulose emanzini

Intshayelelo

ICarboxymethyl cellulose (CMC) luhlobo oluphuma kwiselulosi olusetyenziswa kakhulu kumashishini ahlukeneyo, kubandakanya ukutya, amayeza, iphepha, kunye namalaphu. I-polymer e-soluble yamanzi eveliswa ngokuphendula i-cellulose kunye ne-sodium monochloroacetate okanye i-sodium dichloroacetate phambi kwe-alkali. I-CMC ngumgubo omhlophe, ongenavumba, ongenancasa osetyenziswa njenge-arhente etyebisayo, i-stabilizer, i-emulsifier, kunye ne-arhente yokuxhoma kwiimveliso ezahlukeneyo. Ikwasetyenziswa njenge-binder kwiipilisi kunye ne-capsules, kwaye njenge-lubricant ekwenzeni iipilisi.

Ukunyibilika kwe-CMC emanzini kuxhomekeke kwizinto ezininzi, kubandakanywa iqondo lokuthatha indawo (DS), ubunzima bemolekyuli, kunye ne-pH. Iqondo lokutshintsha linani lamaqela e-carboxymethyl ngeyunithi ye-anhydroglucose (AGU) kwikhonkco le-polymer, kwaye idla ngokuchazwa njengepesenti. Okukhona iphezulu i-DS, kokukhona i-hydrophilic CMC kwaye inyibilika ngakumbi emanzini. Ubunzima bemolekyuli yeCMC ikwachaphazela ukunyibilika kwayo emanzini; ubunzima beemolekyuli eziphezulu bathande ukunyibilika ngakumbi. Ekugqibeleni, i-pH yesisombululo inokuchaphazela ukunyibilika kwe-CMC; amaxabiso aphezulu e-pH akholisa ukunyusa ukunyibilika kwe-CMC.

Ukunyibilika kwe-CMC emanzini kukwachatshazelwa bubukho bezinye izinto kwisisombululo. Umzekelo, ubukho bee-electrolyte ezifana ne-sodium chloride kunokunciphisa ukunyibilika kwe-CMC emanzini. Ngokufanayo, ubukho bezinyibilikisi zendalo ezifana ne-ethanol zinokunciphisa ukunyibilika kwe-CMC emanzini.

I-solubility ye-CMC emanzini inokumiselwa ngokulinganisa ukuxinwa kwe-CMC kwisisombululo usebenzisa i-spectrophotometer. Ukuxinwa kwe-CMC kwisisombululo kunokumiselwa ngokulinganisa ukuxhamla kwesisombululo kwi-wavelength ye-260 nm. I-absorbence ilingana nokuxinana kwe-CMC kwisisombululo.

Ngokubanzi, i-CMC inyibilika kakhulu emanzini. I-solubility ye-CMC emanzini iyanda ngokunyuka kweqondo lokuthatha indawo, ubunzima bemolekyuli, kunye ne-pH. Ukunyibilika kwe-CMC emanzini kukwachatshazelwa bubukho bezinye izinto kwisisombululo.

Ukuqukumbela

ICarboxymethyl cellulose (CMC) yipolymer enyibilikayo emanzini esetyenziswa kakhulu kumashishini ahlukeneyo. Ukunyibilika kwe-CMC emanzini kuxhomekeke kwizinto ezininzi, kubandakanywa iqondo lokutshintshwa, ubunzima bemolekyuli, kunye ne-pH. Ngokubanzi, i-CMC inyibilika kakhulu emanzini, kwaye ukunyibilika kwayo kuyanda ngokunyuka kweqondo lokuthatha indawo, ubunzima bemolekyuli, kunye ne-pH. Ukunyibilika kwe-CMC emanzini kukwachatshazelwa bubukho bezinye izinto kwisisombululo. Ukuxinwa kwe-CMC kwisisombululo kunokumiselwa ngokulinganisa ukuxhamla kwesisombululo kwi-wavelength ye-260 nm.