Sodium carboxymethylcellulose(SCMC) ke motsoako oa selulose o qhibilihang ka metsing o sebelisoang hangata liindastering tse fapaneng, joalo ka lijo, meriana, le litlolo, joalo ka motenya, stabilizer le emulsifier. Ts'ebetso ea tlhahiso ea SCMC e kenyelletsa mehato e mengata, ho kenyelletsa alkalization, etherification, tlhoekiso le ho omisa.

1. Alkalization

Mohato oa pele ts'ebetsong ea tlhahiso ea SCMC ke alkalization ea cellulose. Cellulose e tsoa ho makhasi a lehong kapa likhoele tsa k'hothone, tse arotsoeng ka likaroloana tse nyane ka letoto la kalafo ea mochini le lik'hemik'hale. Cellulose e hlahisoang e ntan'o phekoloa ka alkali, e kang sodium hydroxide (NaOH) kapa potassium hydroxide (KOH), ho eketsa ts'ebetso ea eona le ho qhibiliha ha eona.

Ts'ebetso ea alkalization hangata e kenyelletsa ho kopanya selulose le tharollo e kopaneng ea NaOH kapa KOH ka mocheso o phahameng le likhatello. Boitšoaro pakeng tsa selulose le alkali bo fella ka ho thehoa ha sodium kapa potassium cellulose, e sebetsang haholo 'me e ka fetoloa habonolo.

2. Etherification

Mohato o latelang ts'ebetsong ea tlhahiso ea SCMC ke etherification ea sodium kapa potassium cellulose. Ts'ebetso ena e kenyelletsa ho kenyelletsa lihlopha tsa carboxymethyl (-CH2-COOH) mokokotlong oa selulose ka karabelo e nang le chloroacetic acid (ClCH2COOH) kapa letsoai la sodium kapa potasiamo.

Karabelo ea etherification hangata e etsoa ka motsoako oa metsi-ethanol ka mocheso o phahameng le likhatello, ka ho eketsoa ha ntho e thusang, joalo ka sodium hydroxide kapa sodium methylate. Karabelo ke exothermic haholo mme e hloka taolo e hlokolosi ea maemo a karabelo ho qoba mocheso o feteletseng le ho senyeha ha sehlahisoa.

Tekanyo ea etherification, kapa palo ea lihlopha tsa carboxymethyl ka molek'hule ea cellulose, e ka laoloa ka ho lokisa maemo a karabelo, joalo ka bongata ba chloroacetic acid le nako ea karabelo. Likhato tse phahameng tsa etherification li fella ka ho qhibiliha ho hoholo ha metsi le viscosity e teteaneng ea sephetho sa SCMC.

3. Tlhoekiso

Kamora karabelo ea etherification, SCMC e hlahisoang hangata e silafatsoa ke litšila, joalo ka selulose e sa sebetsanoang, alkali, le chloroacetic acid. Mohato oa tlhoekiso o kenyelletsa ho tlosoa ha litšila tsena ho fumana sehlahisoa se hloekileng le sa boleng bo holimo sa SCMC.

Ts'ebetso ea tlhoekiso hangata e kenyelletsa mehato e mengata ea ho hlatsoa le ho sefa ka metsi kapa litharollo tse nang le metsi a ethanol kapa methanol. SCMC e hlahisoang ka nako eo ha e sebelisoe ka asiti, joalo ka hydrochloric acid kapa acetic acid, ho tlosa alkali efe kapa efe e setseng le ho lokisa pH ho ea maemong a batloang.

4. Ho omisa

Mohato oa ho qetela ts'ebetsong ea tlhahiso ea SCMC ke ho omisoa ha sehlahisoa se hloekisitsoeng. SCMC e omisitsoeng e tloaelehile ka sebopeho sa phofo e tšoeu kapa granule mme e ka sebetsoa ka mefuta e fapaneng, joalo ka tharollo, li-gel kapa lifilimi.

Ts'ebetso ea ho omisa e ka etsoa ka mekhoa e fapaneng, joalo ka ho omisa, ho omisa meropa, kapa ho omisa ka vacuum, ho ipapisitse le thepa e lakatsehang ea sehlahisoa le sekala sa tlhahiso. Mokhoa oa ho omisa o lokela ho laoloa ka hloko ho qoba mocheso o feteletseng, o ka bakang ho senyeha ha lihlahisoa kapa ho senyeha ha mebala.

Lisebelisoa tsa sodium Carboxymethylcellulose

Sodium carboxymethylcellulose (SCMC) e sebelisoa haholo liindastering tse fapaneng, joalo ka lijo, meriana, litlolo, le tlhokomelo ea motho ka mong, ka lebaka la ho qhibiliha ha eona ha metsi, ho teteaneng, ho tsitsisa le ho etsa emulsifying.

Indasteri ea Lijo

Indastering ea lijo, SCMC e sebelisoa hangata joalo ka setei, stabilizer, le emulsifier lihlahisoa tse fapaneng tsa lijo, joalo ka thepa e halikiloeng, lihlahisoa tsa lebese, lisoso, litlolo le lino. SCMC e boetse e sebelisoa joalo ka phetisetso ea mafura lijong tse mafura a tlase le tse fokotsehileng tsa khalori.