Mefuta e fapaneng ea ethyl cellulose (EC)

Ethyl cellulose ke polymer e feto-fetohang e nang le mefuta e mengata ea ts'ebeliso, ho tloha ho meriana ho ea ho litlolo ho isa ho lisebelisoa tsa lijo. Thepa ea eona e ka fapana haholo ho latela kereiti ea eona, e khethoang ke lintlha tse kang boima ba molek'hule, tekanyo ea ho fetola, le kabo ea boholo ba likaroloana.

1.Selelekela ho Ethyl Cellulose

Ethyl cellulose e tsoa ho cellulose, polymer ea tlhaho e fumanehang maboteng a lisele tsa semela. E entsoe ka ethylation ea cellulose, moo lihlopha tsa hydroxyl mokokotlong oa cellulose li nkeloang sebaka ke lihlopha tsa ethyl. Phetoho ena e fana ka thepa e ikhethang ho cellulose ea ethyl, ho kenyelletsa le bokhoni bo botle ba ho etsa filimi, ho hanyetsa lik'hemik'hale, le botsitso ba mocheso.

2.Likereiti tsa Boima ba Limolek'hule tse tlase ho isa ho tse Mahareng:

Limaraka tsena hangata li na le boima ba limolek'hule ho tloha ho 30,000 ho isa ho 100,000 g / mol.
Li khetholloa ka viscosity ea tsona e tlaase le litekanyetso tsa ho qhibiliha ka potlako ha li bapisoa le litekanyetso tse phahameng tsa boima ba limolek'hule.
Lisebelisoa:
Li-coatings: Li sebelisoa e le li tlamahanngoa lirapeng tsa matlapa, lipilisi le li-granules litlhare.
Phatlalatso e Laolang: Ho hiroa litsamaisong tsa phano ea lithethefatsi tse laoloang moo ho batloang ho qhaloa ka potlako.
Li-inks: Li sebelisoa e le li-thickeners le li-agent tsa ho etsa lifilimi ho li-inks tsa khatiso.

3.Mephato e Phahameng ea Boima ba Limolek'hule:

Limaraka tsena li na le boima ba limolek'hule hangata bo fetang 100,000 g/mol.
Li bonts'a viscosity e phahameng le litekanyetso tse liehang tsa ho qhibiliha, e leng se etsang hore li tšoanelehe bakeng sa lihlahisoa tse sa khaotseng.
Lisebelisoa:
Tokollo e Ts'oarellang: E ​​loketse ho theha liforomo tsa litekanyetso tsa tokollo e tsitsitseng ka har'a meriana, ho fana ka tokollo ea nako e telele ea lithethefatsi.
Encapsulation: E sebelisoa ho mahlale a encapsulation bakeng sa tokollo e laoloang ea litatso, monko o monate le metsoako e sebetsang.
Lifilimi tsa Barriers: E sebelisoa e le litšitiso ka har'a liphutheloana tsa lijo ho ntlafatsa bophelo ba sethala le ho thibela ho kenella ha mongobo.

4.Degree of Substitution (DS) Mefuta e fapaneng:

Ethyl cellulose e ka ba le likhato tse fapaneng tsa phetoho, e bonts'ang palo e tloaelehileng ea lihlopha tsa ethyl ka unit ea anhydroglucose ka ketane ea cellulose.
Mephato e nang le boleng bo phahameng ba DS e na le lihlopha tse ngata tsa ethyl ka yuniti e le 'ngoe ea selulose, e leng se bakang ho eketseha ha hydrophobicity le ho fokotseha ha ho qhibiliha ha metsi.
Lisebelisoa:
Khanyetso ea Metsi: Limaraka tse holimo tsa DS li sebelisoa lijaneng le lifiliming moo ho hanyetsa metsi ho leng bohlokoa, joalo ka litšitiso tse thibelang mongobo bakeng sa matlapa le li-capsules.
Solvent Resistance: E loketse lits'ebetso tse hlokang khanyetso ho lihlapolli tsa tlhaho, joalo ka li-inks le liphahlo bakeng sa ho hatisa le ho paka.

5. Mefuta e fapaneng ea Boholo ba Karolo:

Ethyl cellulose e fumaneha ka mefuta e fapaneng ea boholo ba likaroloana, ho tloha ho likaroloana tsa boholo ba micrometer ho ea ho phofo e boholo ba nanometer.
Mefuta e metle ea likaroloana e fana ka melemo e kang ho ntlafatsoa ha dispersibility, ho roala boreleli, le ho lumellana ho ntlafatsang le lisebelisoa tse ling.

6. Likopo:

Nanoencapsulation: Likaroloana tsa Nanoscale ethyl cellulose li sebelisoa ho nanomedicine bakeng sa phepelo ea lithethefatsi, e nolofalletsang phepelo e lebisitsoeng le ho ntlafatsa katleho ea kalafo.
Nano Coatings: Li-powders tse ntle tsa ethyl cellulose li sebelisoa ka liphahlo tse khethehileng, tse kang li-barriers tsa li-barriers bakeng sa lisebelisoa tsa elektronike tse feto-fetohang le lisebelisoa tsa biomedical.

Ethyl cellulose ke polymer e feto-fetohang e nang le lits'ebetso tse fapaneng ho pholletsa le liindasteri, 'me limaraka tsa eona tse fapaneng li fana ka thepa e ikhethileng ho fihlela litlhoko tse ikhethang tsa tlhahiso. Ho tloha ho limaraka tse tlase ho isa ho tse phahameng tsa boima ba limolek'hule ho ea ho mefuta e fapaneng e ipapisitseng le tekanyo ea ho kenya sebaka le kabo ea boholo ba likaroloana, ethyl cellulose e fana ka mefuta e mengata ea likhetho bakeng sa baetsi ba lihlahisoa ba batlang tharollo mabapi le phano ea lithethefatsi, litlolo, li-encapsulation le ho feta. Ho utloisisa litšobotsi tsa sehlopha ka seng ho bohlokoa bakeng sa ho ntlafatsa ts'ebetso le ho fihlela sephetho se lakatsehang lits'ebetsong tse fapaneng.