Izici Ezithonyayo ku-Sodium carboxymethylcellulose Viscosity

Ukuqina kwezixazululo ze-sodium carboxymethylcellulose (CMC) kungathonywa yizici eziningana. Nazi ezinye zezici ezibalulekile ezithinta ukuqina kwezixazululo ze-CMC:

1. Ukuhlushwa: Ukuhlushwa kwezixazululo ze-CMC ngokuvamile kuyanda ngokwanda kokuhlushwa. Ukuhlushwa okuphezulu kwe-CMC kuphumela kumaketanga e-polymer amaningi esixazululweni, okuholela ekubambekeni okukhulu kwama-molecule kanye nokuhlushwa okuphezulu. Kodwa-ke, ngokuvamile kunomkhawulo ekukhuleni kwe-viscosity ekuhlushweni okuphezulu ngenxa yezici ezifana ne-rheology yesisombululo kanye nokusebenzisana kwe-polymer-solvent.
2. Izinga Lokufaka Esikhundleni (DS): Izinga lokufaka esikhundleni libhekisela enanini elimaphakathi lamaqembu e-carboxymethyl ngeyunithi ngayinye ye-glucose ku-cellulose chain. I-CMC ene-DS ephezulu ivame ukuba ne-viscosity ephezulu ngoba inamaqembu ashaja kakhulu, okukhuthaza ukusebenzisana okuqinile phakathi kwama-molecule kanye nokumelana okukhulu nokugeleza.
3. Isisindo Sama-molecule: Isisindo sama-molecule se-CMC singathonya i-viscosity yayo. Isisindo sama-molecule esiphezulu se-CMC ngokuvamile siholela ezixazululweni ze-viscosity ephezulu ngenxa yokwanda kokubanjwa kweketanga kanye namaketanga amade e-polymer. Kodwa-ke, i-CMC enesisindo sama-molecule ephezulu ngokweqile ingase iholele ekwandeni kwe-viscosity yesisombululo ngaphandle kokwanda okulingana kokusebenza kokujiya.
4. Izinga Lokushisa: Izinga lokushisa linomthelela omkhulu ekuqineni kwezixazululo ze-CMC. Ngokuvamile, ukuqineni kwehla njengoba izinga lokushisa likhuphuka ngenxa yokunciphisa ukusebenzisana kwe-polymer-solvent kanye nokwanda kokunyakaza kwama-molecule. Kodwa-ke, umphumela wokushisa ekuqineni ungahluka kuye ngezici ezifana nokuhlushwa kwe-polymer, isisindo sama-molecule, kanye ne-pH yesisombululo.
5. i-pH: I-pH yesisombululo se-CMC ingathinta i-viscosity yayo ngenxa yezinguquko ku-ionization ye-polymer kanye nokwakheka kwayo. I-CMC ivame ukuba yinkimbinkimbi kakhulu kumanani aphezulu e-pH ngoba amaqembu e-carboxymethyl ahlanganiswa ne-ion, okuholela ekuxoshweni okunamandla kwe-electrostatic phakathi kwamaketanga e-polymer. Kodwa-ke, izimo ze-pH ezidlulele zingaholela ekushintsheni ekuncibilikeni kwe-polymer kanye nokwakheka kwayo, okungathinta i-viscosity ngendlela ehlukile kuye ngebanga elithile le-CMC kanye nokwakheka kwayo.
6. Okuqukethwe Kukasawoti: Ukuba khona kukasawoti esixazululweni kungathonya ukujiya kwezixazululo ze-CMC ngemiphumela ekusebenzelaneni kwe-polymer-solvent kanye nokusebenzisana kwe-ion-polymer. Kwezinye izimo, ukungezwa kukasawoti kungandisa ukujiya ngokuhlola ukuxoshwa kwe-electrostatic phakathi kwamaketanga e-polymer, kanti kwezinye izimo, kunganciphisa ukujiya ngokuphazamisa ukusebenzisana kwe-polymer-solvent kanye nokukhuthaza ukuhlanganiswa kwe-polymer.
7. Izinga Lokugunda: Ukuqina kwezixazululo ze-CMC kungancika futhi esilinganisweni sokuguguleka noma esilinganisweni lapho ukucindezeleka kusetshenziswa khona esixazululweni. Izixazululo ze-CMC zivame ukubonisa ukuziphatha kokunciphisa ukuguguleka, lapho ukuguguleka kwehla khona ngokwandisa izinga lokuguguleka ngenxa yokuqondaniswa kanye nokuqondiswa kwamaketanga e-polymer eceleni kwendlela yokugeleza. Izinga lokuncipha kokuguguleka lingahluka kuye ngezici ezifana nokuhlushwa kwe-polymer, isisindo sama-molecule, kanye ne-pH yesisombululo.

Ukuqina kwezixazululo ze-sodium carboxymethylcellulose kuthonywa yinhlanganisela yezici ezifaka phakathi ukuhlushwa, izinga lokushintshana, isisindo sama-molecule, izinga lokushisa, i-pH, okuqukethwe usawoti, kanye nesilinganiso sokucheba. Ukuqonda lezi zici kubalulekile ekwenzeni ngcono ukuqina kwezixazululo ze-CMC ukuze kusetshenziswe ngokukhethekile ezimbonini ezifana nokudla, imithi, izimonyo, kanye nokunakekelwa komuntu siqu.