Tšebeliso ea sodium carboxymethyl cellulose le hydroxyethyl cellulose lihlahisoa tsa letsatsi le letsatsi tsa lik'hemik'hale

Carboxymethylcellulose sodium (CMC-Na) ke ntho ea tlhaho, e tsoang ho carboxymethylated ea selulose, le chese ea bohlokoa ka ho fetisisa ea ionic cellulose. Sodium carboxymethyl cellulose hangata ke motsoako oa anionic polymer o lokiselitsoeng ka ho arabela cellulose ea tlhaho ka caustic alkali le monochloroacetic acid, e nang le boima ba molek'hule ho tloha ho likete tse 'maloa ho isa ho limilione. CMC-Na ke phofo e tšoeu ea fibrous kapa granular, ha e na monko, ha e na tatso, e hygroscopic, e hasanngoa habonolo metsing ho etsa tharollo ea colloidal e hlakileng.

Ha ho se nke lehlakore kapa alkaline, tharollo ke mokelikeli o phahameng oa viscosity. E tsitsitseng ho meriana, khanya le mocheso. Leha ho le joalo, mocheso o lekanyelitsoe ho 80°C, 'me haeba e futhumetse nako e telele ho feta 80°C, viscosity e tla fokotseha 'me e ke ke ea qhibiliha ka metsing.

Sodium carboxymethyl cellulose le eona ke mofuta o motenya. Ka lebaka la ts'ebetso ea eona e ntle, e 'nile ea sebelisoa haholo indastering ea lijo,' me e boetse e khothalelitse tsoelo-pele e potlakileng le e phetseng hantle ea indasteri ea lijo ho isa bohōleng bo itseng. Ka mohlala, ka lebaka la phello e itseng ea ho teteaneng le emulsifying, e ka sebelisoa ho tsitsisa lino tsa yogurt le ho eketsa viscosity ea tsamaiso ea yogurt; ka lebaka la litšobotsi tsa eona tse itseng tsa hydrophilicity le rehydration, e ka sebelisoa ho ntlafatsa tšebeliso ea pasta joalo ka bohobe le bohobe bo halikiloeng. boleng, lelefatsa bophelo ba sethala sa lihlahisoa tsa pasta le ho ntlafatsa tatso.

Hobane e na le phello e itseng ea gel, ho molemo ho lijo ho theha gel hantle, kahoo e ka sebelisoa ho etsa jelly le jeme; e ka boela ea sebelisoa e le thepa ea ho roala e jeoang, e kopantsoe le li-thickeners tse ling, 'me ea hasana Likarolong tse ling tsa lijo, e ka boloka lijo li le ncha ka ho fetisisa, 'me kaha ke ntho e jeoang, e ke ke ea baka liphello tse mpe ho batho. bophelo bo botle. Ka hona, CMC-Na ea boemo ba lijo, joalo ka sehlomathiso se loketseng sa lijo, e sebelisoa haholo tlhahisong ea lijo indastering ea lijo.

Hydroxyethylcellulose (HEC), chemical formula (C2H6O2)n, ke bosehla bo bosoeu kapa bo bobebe, bo se nang monko, bo se nang chefo kapa bo tiileng, bo entsoeng ka selulose ea alkaline le ethylene oxide (kapa chlorohydrin) li-ether tsa ionic soluble cellulose. Hobane HEC e na le thepa e ntle ea ho teteka, ho emisa, ho qhalakanya, emulsifying, ho tlama, ho etsa filimi, ho sireletsa mongobo le ho fana ka colloid e sireletsang.

E qhibiliha habonolo ka metsing ka likhato tse 20°C. Ha e khone ho qhibiliha ka har'a metsoako e tloaelehileng ea tlhaho. E na le mesebetsi ea ho tiisa, ho emisa, ho tlama, ho emulsifying, ho hasanya le ho boloka mongobo. Litharollo ka mekhahlelo e fapaneng ea viscosity li ka lokisoa. E na le ho qhibiliha ha letsoai ka mokhoa o ikhethang bakeng sa li-electrolyte.

The viscosity e fetoha hanyenyane ho palo ea PH ea 2-12, empa viscosity e fokotseha ho feta mefuta ena. E na le thepa ea ho tiisa, ho emisa, ho tlama, emulsifying, ho qhalakanya, ho boloka mongobo le ho sireletsa colloid. Litharollo ka mekhahlelo e fapaneng ea viscosity li ka lokisoa.