Sodium Carboxymethyl cellulose zvivakwa uye Kufurira Zvinhu paCMC Viscosity

Sodium Carboxymethyl cellulose (CMC) inowanzo shandiswa polima mune akasiyana maindasitiri ekushandisa, kusanganisira chikafu, mishonga, zvigadzirwa zvekuchengeta munhu, uye zvekugezesa. Inobva mumvura inonyungudika ye cellulose inogadzirwa nekuita kwe cellulose ne chloroacetic acid uye sodium hydroxide. CMC inoshanda zvakasiyana-siyana uye ine huwandu hwakawanda hwezvivakwa zvinoita kuti ive yakakodzera kune akasiyana mafomu. Muchikamu chino, tichakurukura zvimiro zveCMC uye zvinhu zvinopesvedzera viscosity yayo.

Zvivakwa zve CMC:

1. Solubility: CMC inonyungudika zvakanyanya mumvura, izvo zvinoita kuti zvive nyore kubata uye kushandisa mune akasiyana mafomu. Inogonawo kunyungudika mune mamwe organic solvents, senge ethanol uye glycerol, zvichienderana nehuwandu hwayo hwekutsiva.
2. Viscosity: CMC i polymer yakanyanya viscous inogona kuumba gels pakakwirira. Iyo viscosity yeCMC inopesvedzerwa nezvinhu zvakasiyana, senge dhigirii rekutsinhanisa, kutsikisa, pH, tembiricha, uye electrolyte concentration.
3. Rheology: CMC inoratidza pseudoplastic maitiro, zvinoreva kuti viscosity yayo inoderera nekuwedzera shear rate. Ichi chivakwa chinobatsira mumashandisirwo apo yakakwirira viscosity inodiwa panguva yekugadzirisa, asi yakaderera viscosity inodiwa panguva yekushandisa.
4. Kugadzikana: CMC yakagadzikana pamusoro pehupamhi hwepH uye tembiricha mamiriro. Iyo inopesanawo nehutachiona hwehutachiona, hunoita kuti ive yakakodzera kushandiswa mukudya uye kushandiswa kwemishonga.
5. Mafirimu-ekugadzira zvimiro: CMC inogona kugadzira akatetepa, anochinjika mafirimu kana akaomeswa. Aya mafirimu ane zvipingamupinyi zvakanaka uye anogona kushandiswa semachira ekushandisa kwakasiyana.

Zvinhu zvinopesvedzera CMC viscosity:

1. Degree of substitution (DS): Iyo dhigirii yekutsiva ndiyo avhareji nhamba yemapoka ecarboxymethyl pane anhydroglucose unit mu cellulose molecule. CMC ine DS yepamusoro ine dhigirii repamusoro rekutsiva, izvo zvinotungamira kune yakakwira viscosity. Izvi zvinodaro nekuti DS yepamusoro inotungamira kune mamwe mapoka ecarboxymethyl, ayo anowedzera huwandu hwemamorekuru emvura akasungwa kune polymer.
2. Concentration: Iyo viscosity yeCMC inowedzera nekuwedzera kukoshesa. Izvi zvinodaro nekuti pamatunhu akakwirira, mamwe macheni epolymer aripo, izvo zvinotungamira kune yakakwira dhigirii yekunamatira uye kuwedzera viscosity.
3. pH: Iyo viscosity yeCMC inobatwa neiyo pH yemhinduro. Pa pH yakaderera, CMC ine viscosity yepamusoro nekuti mapoka ecarboxyl ari muchimiro chawo cheprotonated uye anogona kudyidzana zvakanyanya nemamorekuru emvura. Pamusoro pepH, CMC ine yakaderera viscosity nekuti mapoka ecarboxyl ari muchimiro chawo akaraswa uye ane kudyidzana kushoma nemamorekuru emvura.
4. Tembiricha: Iyo viscosity yeCMC inoderera nekuwedzera tembiricha. Izvi zvinodaro nekuti pakupisa kwepamusoro, cheni dzepolymer dzine simba rinopisa, izvo zvinotungamira kune yakakwira dhigirii yekufamba uye kuderera kweviscosity.
5. Electrolyte concentration: Iyo viscosity yeCMC inokanganiswa nekuvapo kwe electrolytes mumhinduro. Pakukwirira kwe electrolyte, viscosity yeCMC inodzikira nekuti ayoni ari mumhinduro anogona kudyidzana nemapoka ecarboxyl epolymer uye kuderedza kudyidzana kwawo nemamorekuru emvura.

Mukupedzisa, Sodium Carboxymethyl cellulose (CMC) ipolymer inoshanda zvakasiyana-siyana inoratidza huwandu hwakawanda hwezvivakwa, zvinosanganisira solubility, viscosity, rheology, kugadzikana, uye firimu-kugadzira zvinhu. Iyo viscosity yeCMC inopesvedzerwa nezvinhu zvakasiyana, senge dhigirii rekutsinhanisa, kutsikisa, pH, tembiricha, uye electrolyte concentration. Kunzwisisa zvinhu izvi kwakakosha pakugadzirisa mashandiro eCMC mumashandisirwo akasiyana siyana.