Thepa ea sodium Carboxymethyl cellulose le Lintho tse Susumetsang ho CMC Viscosity

Sodium Carboxymethyl cellulose (CMC) ke polymer e sebelisoang hangata lits'ebetsong tse fapaneng tsa indasteri, ho kenyeletsoa lijo, meriana, lihlahisoa tsa tlhokomelo ea motho le litlolo. Ke motsoako o qhibilihang ka metsing oa selulose o hlahisoang ke karabelo ea selulose ka chloroacetic acid le sodium hydroxide. CMC e na le mefuta e mengata haholo ebile e na le mefuta e mengata ea thepa e etsang hore e tšoanelehe bakeng sa lits'ebetso tse fapaneng. Sehloohong sena, re tla tšohla thepa ea CMC le lintlha tse susumetsang viscosity ea eona.

Lintho tsa CMC:

1. Solubility: CMC e qhibiliha haholo ka metsing, e etsang hore ho be bonolo ho e tšoara le ho e sebelisa lits'ebetsong tse fapaneng. E ka boela ea qhibiliha ka har'a metsoako e meng ea manyolo, joalo ka ethanol le glycerol, ho latela boemo ba eona ba ho e nkela sebaka.
2. Viscosity: CMC ke polymer e hlakileng haholo e ka etsang li-gel maemong a holimo. Viscosity ea CMC e susumetsoa ke lintlha tse fapaneng, joalo ka tekanyo ea ho fetola, mahloriso, pH, mocheso le khatello ea electrolyte.
3. Rheology: CMC e bonts'a boits'oaro ba pseudoplastic, ho bolelang hore viscosity ea eona e fokotseha ka sekhahla sa ho kuta. Thepa ena e na le thuso lits'ebetsong moo ho hlokahalang viscosity e phahameng nakong ea ts'ebetso, empa viscosity e tlase e hlokahala nakong ea kopo.
4. Botsitso: CMC e tsitsitse ho feta mefuta e mengata ea pH le maemo a mocheso. E boetse e hanyetsana le ho senyeha ha likokoana-hloko, e leng se etsang hore e tšoanelehe ho sebelisoa lijong le lits'ebetsong tsa meriana.
5. Lintho tsa ho etsa lifilimi: CMC e ka etsa lifilimi tse tšesaane, tse tenyetsehang ha li omisitsoe. Lifilimi tsena li na le thepa e ntle ea lithibelo 'me li ka sebelisoa e le liphahlo bakeng sa lits'ebetso tse fapaneng.

Lintlha tse susumetsang viscosity ea CMC:

1. Degree of substitution (DS): Tekanyo ea ho nka sebaka ke palo e tloaelehileng ea lihlopha tsa carboxymethyl ka unit ea anhydroglucose ka molek'hule ea cellulose. CMC e nang le DS e phahameng e na le tekanyo e phahameng ea ho fetola, e lebisang ho viscosity e phahameng. Sena ke hobane DS e phahameng e lebisa ho lihlopha tse ngata tsa carboxymethyl, tse eketsang palo ea limolek'hule tsa metsi tse tlameletsoeng ho polymer.
2. Ho tsepamisa maikutlo: Viscosity ea CMC e eketseha ka ho tsepamisa mohopolo. Lebaka ke hore maemong a holimo, ho na le liketane tse ngata tsa polymer, e leng se lebisang boemong bo phahameng ba ho ts'oaroa le ho eketseha ha viscosity.
3. pH: The viscosity ea CMC e angoa ke pH ea tharollo. Ka pH e tlase, CMC e na le viscosity e phahameng hobane lihlopha tsa carboxyl li ka sebopeho sa tsona sa protonated 'me li ka sebelisana ka matla le limolek'hule tsa metsi. Ka pH e phahameng, CMC e na le viscosity e tlase hobane lihlopha tsa carboxyl li sebopeho sa tsona se senyehileng 'me li na le tšebelisano e fokolang le limolek'hule tsa metsi.
4. Mocheso: The viscosity ea CMC ea fokotseha ka mocheso o ntseng o eketseha. Lebaka ke hobane lithempereichara tse phahameng, liketane tsa polymer li na le matla a mangata a mocheso, e leng se lebisang ho boemo bo phahameng ba ho tsamaea le ho fokotseha ha viscosity.
5. Motsoako oa electrolyte: Viscosity ea CMC e angoa ke boteng ba li-electrolyte tharollong. Maemong a phahameng a electrolyte, viscosity ea CMC ea fokotseha hobane li-ion tse tharollong li ka sebelisana le lihlopha tsa carboxyl tsa polymer le ho fokotsa tšebelisano ea tsona le limolek'hule tsa metsi.

Qetellong, Sodium Carboxymethyl cellulose (CMC) ke polima e nang le mefuta e mengata e fapaneng e bonts'ang mefuta e mengata ea thepa, ho kenyeletsoa solubility, viscosity, rheology, stability, le thepa ea ho etsa lifilimi. Viscosity ea CMC e susumetsoa ke lintlha tse fapaneng, joalo ka tekanyo ea ho fetola, mahloriso, pH, mocheso le khatello ea electrolyte. Ho utloisisa lintlha tsena ho bohlokoa bakeng sa ho ntlafatsa ts'ebetso ea CMC lits'ebetsong tse fapaneng.