Izinto ezinempembelelo kwiSodium carboxymethylcellulose Viscosity

I-viscosity yezisombululo ze-sodium carboxymethylcellulose (CMC) inokuphenjelelwa zizinto ezininzi.Nazi ezinye zezinto eziphambili ezichaphazela i-viscosity yezisombululo zeCMC:

1. Ugxininiso: I-viscosity yezisombululo ze-CMC ngokubanzi yonyuka ngokugxila okukhulayo.Ukugxininiswa okuphezulu kwe-CMC kubangela amatyathanga epolymer ngakumbi kwisisombululo, okukhokelela ekubambeni okukhulu kweemolekyuli kunye ne-viscosity ephezulu.Nangona kunjalo, kukho umda wokunyuka kwe-viscosity kwiindawo eziphezulu ngenxa yezinto ezifana ne-rheology yesisombululo kunye nokusebenzisana kwe-polymer-solvent.
2. I-Degree of Substitution (DS): Iqondo lokutshintsha libhekiselele kumyinge wenani lamaqela e-carboxymethyl ngeyunithi yeglucose kwikhonkco leselulosi.I-CMC ene-DS ephezulu ithande ukuba ne-viscosity ephezulu kuba inamaqela ahlawuliswayo, akhuthaza ukusebenzisana okunamandla kwe-intermolecular kunye nokumelana okukhulu ukuhamba.
3. Ubunzima beMolekyuli: Ubunzima bemolekyuli yeCMC inokuchaphazela i-viscosity yayo.Ubunzima bemolekyuli obuphezulu be-CMC bukhokelela kwizisombululo eziphezulu ze-viscosity ngenxa yokwanda kwekhonkco kunye namatyathanga epolymer amade.Nangona kunjalo, ubunzima obuphezulu bemolekyuli ye-CMC bunokukhokelela ekwandeni kwe-viscosity yesisombululo ngaphandle kokunyuka okulinganayo ekusebenzeni kokuqina.
4. Ubushushu: Ubushushu bunempembelelo enkulu kwi-viscosity yezisombululo zeCMC.Ngokubanzi, i-viscosity iyancipha njengoko iqondo lokushisa linyuka ngenxa yokunciphisa ukusebenzisana kwe-polymer-solvent kunye nokunyuka kokuhamba kweemolekyuli.Nangona kunjalo, impembelelo yobushushu kwi-viscosity inokwahluka ngokuxhomekeke kwizinto ezinje nge-polymer concentration, ubunzima bemolekyuli, kunye nesisombululo pH.
5. I-pH: I-pH yesisombululo se-CMC inokuchaphazela i-viscosity yayo ngenxa yeenguqu kwi-polymer ionization kunye ne-conformation.I-CMC idla ngokuba ne-viscous ngakumbi kumaxabiso aphezulu e-pH kuba amaqela e-carboxymethyl enziwe i-ionized, ekhokelela ekomeleleni kwe-electrostatic repulsions phakathi kwe-polymer chain.Nangona kunjalo, iimeko ezigqithisileyo ze-pH zinokukhokelela kutshintsho kwi-polymer solubility kunye nokuhambelana, okunokuthi kuchaphazele i-viscosity ngokwahlukileyo ngokuxhomekeke kwibakala elithile le-CMC kunye nokwakheka.
6. Umxholo weTyuwa: Ubukho beetyuwa kwisisombululo bunokuchaphazela i-viscosity yezisombululo ze-CMC ngemiphumo yokusebenzisana kwe-polymer-solvent kunye ne-ion-polymer interactions.Kwezinye iimeko, ukongezwa kweetyuwa kunokunyusa i-viscosity ngokuhlola i-electrostatic repulsions phakathi kwamakhonkco e-polymer, ngelixa kwezinye iimeko, kunokunciphisa i-viscosity ngokuphazamisa ukusebenzisana kwe-polymer-solvent kunye nokukhuthaza ukuhlanganiswa kwe-polymer.
7. Ixabiso le-Shear: I-viscosity yezisombululo ze-CMC inokuxhomekeka kwizinga lokucheba okanye izinga apho uxinzelelo lusetyenziswa kwisisombululo.Izisombululo ze-CMC zidla ngokubonisa isimilo sokucheba, apho i-viscosity iyancipha ngokunyuka kwesantya sokucheba ngenxa yolungelelwaniso kunye nokuqhelaniswa namatyathanga epholima ecaleni kwendlela yokuhamba.Ubungakanani bokucheba bunokwahluka ngokuxhomekeke kwizinto ezinje ngoxinaniso lwepolymer, ubunzima bemolekyuli, kunye nesisombululo pH.

i-viscosity yezisombululo ze-sodium carboxymethylcellulose iphenjelelwa yindibaniselwano yezinto ezibandakanya ukugxininiswa, i-degree of substitution, ubunzima be-molecular, ubushushu, i-pH, umxholo wetyuwa, kunye nesantya se-shear.Ukuqonda ezi zinto kubalulekile ekwandiseni i-viscosity yezisombululo ze-CMC kwizicelo ezithile kumashishini afana nokutya, amayeza, izinto zokuthambisa, kunye nokhathalelo lomntu.