Izinto Ezinomthelela ku-Sodium carboxymethylcellulose Viscosity

I-viscosity yezixazululo ze-sodium carboxymethylcellulose (CMC) ingathonywa izici ezimbalwa. Nazi ezinye zezinto ezibalulekile ezithinta i-viscosity yezixazululo ze-CMC:

1. Ukugxila: I-viscosity yezixazululo ze-CMC ngokuvamile iyanda ngokugxila okukhulayo. Ukugxila okuphezulu kwe-CMC kubangela amaketanga e-polymer engeziwe esixazululweni, okuholela ekubambeni okukhulu kwamangqamuzana kanye ne-viscosity ephezulu. Kodwa-ke, ngokuvamile kunomkhawulo ekukhuphukeni kwe-viscosity ekugxilweni okuphezulu ngenxa yezinto ezifana ne-rheology yesisombululo kanye nokusebenzisana kwe-polymer-solvent.
2. I-Degree of Substitution (DS): Izinga lokushintsha libhekisela enanini eliyisilinganiso lamaqembu e-carboxymethyl ngeyunithi ngayinye ye-glucose ochungechungeni lwe-cellulose. I-CMC ene-DS ephakeme ivame ukuba ne-viscosity ephakeme ngoba inamaqembu ashajwe kakhulu, akhuthaza ukusebenzisana okunamandla kwama-intermolecular kanye nokumelana okukhulu nokugeleza.
3. Isisindo samangqamuzana: Isisindo samangqamuzana e-CMC singathonya i-viscosity yayo. Isisindo samangqamuzana aphezulu i-CMC ngokuvamile iholela ezisombululweni eziphezulu ze-viscosity ngenxa yokwanda kweketango kanye namaketanga amade e-polymer. Kodwa-ke, i-CMC yesisindo samangqamuzana ephezulu ngokweqile ingase ibangele i-viscosity eyengeziwe yesisombululo ngaphandle kokwenyuka okulinganayo kokusebenza kahle kokuqina.
4. Izinga lokushisa: Izinga lokushisa linomthelela omkhulu ku-viscosity yezixazululo ze-CMC. Ngokuvamile, i-viscosity iyancipha njengoba izinga lokushisa likhuphuka ngenxa yokunciphisa ukusebenzisana kwe-polymer-solvent kanye nokwanda kokuhamba kwamangqamuzana. Kodwa-ke, umthelela wezinga lokushisa ku-viscosity ungahluka kuye ngezinto ezifana nokugxilwa kwe-polymer, isisindo samangqamuzana, nesixazululo se-pH.
5. I-pH: I-pH yesisombululo se-CMC ingathinta i-viscosity yayo ngenxa yezinguquko ku-polymer ionization kanye nokuvumelana. I-CMC ivamise ukuba ne-viscous kakhulu kumanani e-pH aphezulu ngoba amaqembu e-carboxymethyl ane-ionized, okuholela ekuhlaselweni okunamandla kwe-electrostatic phakathi kwamaketanga e-polymer. Kodwa-ke, izimo ze-pH ezeqisayo zingaholela ekushintsheni kokuncibilika kwe-polymer nokuvumelana, okungase kuthinte i-viscosity ngokuhlukile kuye ngebanga elithile le-CMC nokwakheka.
6. Okuqukethwe Usawoti: Ukuba khona kukasawoti esixazululweni kungaba nomthelela ekubonakaleni kwezixazululo ze-CMC ngemiphumela yokusebenzisana kwe-polymer-solvent kanye nokusebenzisana kwe-ion-polymer. Kwezinye izimo, ukungezwa kosawoti kungakhuphula i-viscosity ngokuhlola ukuphindaphinda kwe-electrostatic phakathi kwamaketanga e-polymer, kanti kwezinye izimo, kungase kunciphise i-viscosity ngokuphazamisa ukusebenzisana kwe-polymer-solvent kanye nokukhuthaza ukuhlanganisa kwe-polymer.
7. I-Shear Rate: I-viscosity yezixazululo ze-CMC nayo ingancika kuzinga lokugunda noma izinga okusetshenziswa ngalo ukucindezeleka esixazululweni. Izixazululo ze-CMC zivame ukukhombisa ukuziphatha kokushear, lapho i-viscosity yehla ngokukhuphuka kwezinga lokugunda ngenxa yokuqondanisa nokuma kwamaketango e-polymer eduze nendawo yokugeleza. Ubukhulu bokugunda kwe-shear bungahluka kuye ngezinto ezifana nokugxiliswa kwe-polymer, isisindo samangqamuzana, nesixazululo se-pH.

i-viscosity yezixazululo ze-sodium carboxymethylcellulose ithonywa yinhlanganisela yezinto ezihlanganisa ukugxila, izinga lokushintshwa, isisindo samangqamuzana, izinga lokushisa, i-pH, okuqukethwe kukasawoti, kanye nesilinganiso se-shear. Ukuqonda lezi zici kubalulekile ekuthuthukiseni i-viscosity yezixazululo ze-CMC zezicelo ezithile ezimbonini ezifana nokudla, imithi, izimonyo, nokunakekelwa komuntu siqu.