Ukunyibilika kwe-sodium carboxymethyl cellulose emanzini

Intshayelelo

ICarboxymethyl cellulose (CMC) luhlobo oluphuma kwiselulosi olusetyenziswa kakhulu kumashishini ahlukeneyo, kubandakanya ukutya, amayeza, iphepha, kunye namalaphu.Yipolymer enyibilikayo emanzini 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 lokutshintshwa linani lamaqela e-carboxymethyl ngeyunithi ye-anhydroglucose (AGU) kwikhonkco le-polymer, kwaye idla ngokubonakaliswa 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.