Ukuncibilika kwe-sodium carboxymethyl cellulose emanzini

Isingeniso

I-Carboxymethyl cellulose (CMC) iwuhlobo lokuphuma kwe-cellulose olusetshenziswa kabanzi ezimbonini ezahlukahlukene, kufaka phakathi ukudla, imithi, iphepha, nezindwangu.Kuyi-polymer encibilika emanzini ekhiqizwa ngokuphendula i-cellulose nge-sodium monochloroacetate noma i-sodium dichloroacetate phambi kwe-alkali.I-CMC iyimpushana emhlophe, engenaphunga, enganambitheki esetshenziswa njenge-ejenti ejiyayo, i-stabilizer, i-emulsifier, ne-ejenti emisayo emikhiqizweni ehlukahlukene.Ibuye isetshenziswe njenge-binder kumaphilisi nama-capsules, nanjenge-lubricant ekwenzeni amaphilisi.

Ukunyibilika kwe-CMC emanzini kuncike ezintweni ezimbalwa, okuhlanganisa izinga lokushintshwa (DS), isisindo samangqamuzana, kanye ne-pH.Izinga lokushintsha inani lamaqembu e-carboxymethyl ngeyunithi ngayinye ye-anhydroglucose (AGU) kuchungechunge lwe-polymer, futhi ngokuvamile ivezwa njengephesenti.Uma iphezulu i-DS, i-CMC iba ne-hydrophilic futhi incibilika kakhulu emanzini.Isisindo samangqamuzana e-CMC sithinta nokuncibilika kwayo emanzini;Izisindo eziphezulu zamangqamuzana zivame ukuncibilika kakhulu.Okokugcina, i-pH yesisombululo ingaphinda ithinte ukunyibilika kwe-CMC;amanani e-pH aphezulu avame ukukhulisa ukunyibilika kwe-CMC.

Ukuncibilika kwe-CMC emanzini kuphinde kuthinteke ngokuba khona kwezinye izinto esixazululweni.Isibonelo, ukuba khona kwama-electrolyte njenge-sodium chloride kunganciphisa ukunyibilika kwe-CMC emanzini.Ngokufanayo, ukuba khona kwezinyibilikisi zemvelo njenge-ethanol nakho kunganciphisa ukunyibilika kwe-CMC emanzini.

Ukunyibilika kwe-CMC emanzini kunganqunywa ngokulinganisa ukugcwala kwe-CMC esixazululweni kusetshenziswa i-spectrophotometer.Ukugxila kwe-CMC esixazululweni kunganqunywa ngokulinganisa ukumuncwa kwesixazululo kubude begagasi obungu-260 nm.Ukumunca kulingana nokugxilisana kwe-CMC esixazululweni.

Ngokuvamile, i-CMC incibilika kakhulu emanzini.Ukunyibilika kwe-CMC emanzini kukhuphuka ngezinga elikhulayo lokushintsha, isisindo samangqamuzana, kanye ne-pH.Ukuncibilika kwe-CMC emanzini kuphinde kuthinteke ngokuba khona kwezinye izinto esixazululweni.

Isiphetho

I-Carboxymethyl cellulose (CMC) iyi-polymer encibilika emanzini esetshenziswa kabanzi ezimbonini ezahlukahlukene.Ukunyibilika kwe-CMC emanzini kuncike ezintweni ezimbalwa, okuhlanganisa izinga lokushintsha, isisindo samangqamuzana, kanye ne-pH.Ngokuvamile, i-CMC incibilika kakhulu emanzini, futhi ukuncibilika kwayo kuyanda ngezinga elikhulayo lokushintsha, isisindo samangqamuzana, kanye ne-pH.Ukuncibilika kwe-CMC emanzini kuphinde kuthinteke ngokuba khona kwezinye izinto esixazululweni.Ukugxila kwe-CMC esixazululweni kunganqunywa ngokulinganisa ukumuncwa kwesixazululo kubude begagasi obungu-260 nm.