Focus on Cellulose ethers

Tokisetso ea carboxymethyl cellulose

Carboxymethyl Cellulose (Senyesemane: Carboxymethyl Cellulose, CMC ka bokhuts'oane) ke motsoako oa lijo tse sebelisoang hangata, 'me letsoai la lona la sodium (sodium carboxymethyl cellulose) hangata le sebelisoa joalo ka motenya le ho peista.

Carboxymethyl cellulose e bitsoa indasteri ea monosodium glutamate, e sebelisoang haholo tlhahiso ea indasteri mme e tlisa boleng bo boholo ba ts'ebeliso masimong a fapaneng a tlhahiso. Carboxymethyl cellulose ke ntho e phofo, e seng chefo, empa e bonolo ho qhibiliha ka metsing. E qhibiliha metsing a batang le metsing a chesang, empa ha e qhibilihe ka har'a metsoako ea tlhaho. E tla fetoha mokelikeli oa viscous ka mor'a ho qhibiliha, empa viscosity e tla fapana ka lebaka la ho phahama le ho theoha ha mocheso. Ka lebaka la thepa ea eona e khethehileng, ho na le litlhoko tse ngata tse khethehileng tsa polokelo le lipalangoang.

Lintho tsa 'mele le tsa lik'hemik'hale

Carboxymethyl cellulose ke ntho e 'mala o mosehla o mosoeu kapa o bobebe, o se nang monko, o sa latsoeheng, oa hygroscopic granules, phofo kapa likhoele tse ntle.

※Ppuseletso

Carboxymethylcellulose e entsoe ka karabelo ea base-catalyzed ea selulose ka chloroacetic acid. Lihlopha tsa polar (organic acid) carboxyl li etsa hore selulose e qhibilihe 'me e sebetse ka lik'hemik'hale. Kamora karabelo ea pele, motsoako o hlahisitsoeng o ile oa hlahisa hoo e ka bang 60% CMC hammoho le 40% ea letsoai (sodium chloride le sodium glycolate). Sehlahisoa ke seo ho thoeng ke CMC ea indasteri bakeng sa li-detergents. Matsoai ana a tlosoa ho sebelisoa mokhoa o mong oa tlhoekiso ho hlahisa CMC e hloekileng bakeng sa ho sebelisoa lijong, meriana le meno (sesepa sa meno). Limaraka tse mahareng tsa "semi-purified" le tsona li hlahisoa, hangata li sebelisoa lits'ebetsong tsa pampiri joalo ka ho khutlisa litokomane tsa polokelo. Thepa e sebetsang ea CMC e ipapisitse le tekanyo ea ho nkela sebaka sa cellulose (ke hore, ke lihlopha tse kae tsa hydroxyl tse nkang karolo molemong oa phetoho), hammoho le bolelele ba ketane ea sebopeho sa mokokotlo oa cellulose le tekanyo ea ho kopanya mokokotlo oa selulose. . Carboxymethyl sebaka.

※ Akopo

Carboxymethylcellulose e sebelisoa lijong e le mofetoleli oa viscosity kapa thickener tlas'a nomoro ea E466 kapa E469 (ka enzymatic hydrolysis) le ho tsitsisa li-emulsion lihlahisoa tse fapa-fapaneng, ho akarelletsa le ice cream. Hape ke karolo ea lihlahisoa tse ngata tseo e seng tsa lijo tse kang sesepa sa meno, li-laxatives, lipilisi tsa lijo, lipente tse thehiloeng metsing, li-detergents, lisebelisoa tsa ho khetholla masela, liphutheloana tse sebelisoang hape tse futhumatsang le lihlahisoa tse fapaneng tsa pampiri. E sebelisoa haholo hobane e na le viscosity e phahameng, ha e na chefo ebile e nkoa e le hypoallergenic kaha likhoele tsa mantlha ke makhasi a lehong la softwood kapa lithara tsa k'hothone. Carboxymethylcellulose e sebelisoa haholo lijong tse se nang gluten le tse fokolitsoeng mafura. Lihlatsoetsong tsa ho hlatsoetsa liaparo, e sebelisoa e le polima e emisang mobu e etselitsoeng ho beha k'hothone le masela a mang a cellulosic, e leng se etsang hore ho be le tšitiso e mpe ea mobu oa joala bo hlatsuoang. Carboxymethylcellulose e sebelisoa e le setlolo sa meokho ea maiketsetso. Carboxymethylcellulose e boetse e sebelisoa e le setsi se teteaneng, ka mohlala, indastering ea ho cheka oli, moo e leng karolo ea seretse sa ho phunya, moo e sebelisoang e le mofetoleli oa viscosity le moemeli oa ho boloka metsi. Mohlala, sodium CMC (Na CMC) e ne e sebelisoa e le taolo e mpe bakeng sa tahlehelo ea moriri ho mebutlanyana. Masela a lohiloeng a entsoeng ka selulose, a kang k'hothone kapa viscose rayon, a ka fetoloa li-CMC 'me a sebelisoa lits'ebetsong tse fapaneng tsa bongaka.


Nako ea poso: Dec-03-2022
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