Li-cellulose ethers tse ntle ka ho fetisisa

Li-cellulose ethers tse ntle ka ho fetisisa

Li-cellulose ethers ke lelapa la li-polymers tse qhibilihang ka metsing tse nkiloeng ho selulose, e leng polima ea tlhaho e fumanehang maboteng a lisele tsa limela. Li-derivatives tsena ke li-polymer tsa cellulose tse fetotsoeng ka lik'hemik'hale tse nang le lihlopha tse fapaneng tse sebetsang, tse fanang ka thepa e ikhethang ho limolek'hule. Li-cellulose ethers li sebelisoa haholo liindastering tse fapaneng ka lebaka la ho feto-fetoha ha tsona, ho kenyeletsoa kaho, meriana, lijo, litlolo le tse ling.

Ho khetholla "molemo ka ho fetisisa" cellulose ether ho itšetlehile ka litlhoko tse khethehileng tsa kopo e reriloeng. Li-ether tse fapaneng tsa cellulose li bonts'a thepa e fapaneng, joalo ka viscosity, solubility, le bokhoni ba ho etsa lifilimi, e leng se etsang hore li tšoanelehe bakeng sa merero e fapaneng. Mona ke tse ling tsa li-cellulose ether tse sebelisoang hangata le tse nkuoang hantle:

  1. Methyl Cellulose (MC):
    • Thepa: MC e tsebahala ka matla a eona a phahameng a ho boloka metsi, e leng se etsang hore e tšoanelehe ho sebelisoa lits'ebetsong tse teteaneng, haholo indastering ea kaho. E boetse e sebelisoa litlhare le lihlahisoa tsa lijo.
    • Lisebelisoa: Metsoako ea seretse le samente, matlapa a meriana, hape e le ntho e matlafatsang lihlahisoa tsa lijo.
  2. Hydroxyethyl Cellulose (HEC):
    • Thepa: HEC e fana ka ho qhibiliha ha metsi hantle 'me e sebetsa ka mefuta-futa ho latela taolo ea viscosity. Hangata e sebelisoa lihlahisoa tsa indasteri le tsa bareki.
    • Lisebelisoa: Lipente le lirafshoa, lihlahisoa tsa tlhokomelo ea botho (li-shampoo, litlolo), li-adhesives, le metsoako ea meriana.
  3. Carboxymethyl Cellulose (CMC):
    • Thepa: CMC ha e qhibilihe ka metsing 'me e na le thepa e matla ea ho tiisa le ho tsitsisa. E sebelisoa haholo indastering ea lijo le ea meriana.
    • Lisebelisoa: Lihlahisoa tsa lijo (e le sekontiri le se tsitsitseng), meriana, litlolo, masela, le maro a ho cheka indastering ea oli le khase.
  4. Hydroxypropyl Methyl Cellulose (HPMC):
    • Thepa: HPMC e fana ka tekanyo e ntle ea ho qhibiliha ha metsi, ho futhumatsa ha mocheso, le thepa ea ho etsa lifilimi. E sebelisoa haholo lits'ebetsong tsa kaho le tsa meriana.
    • Lisebelisoa: Likhomaretsi tsa lithaele, li-renders tse thehiloeng ho samente, metsoako ea meriana ea molomo, le mekhoa e laoloang ea phano ea lithethefatsi.
  5. Ethyl Hydroxyethyl Cellulose (EHEC):
    • Thepa: EHEC e tsejoa ka viscosity ea eona e phahameng le ho boloka metsi, e leng se etsang hore e tšoanelehe bakeng sa likopo tse batlang ho haha ​​​​le meriana.
    • Lisebelisoa: Li-additives tsa seretse, li-thiening agents litlhare, le litlolo.
  6. Sodium Carboxymethyl Cellulose (Na-CMC):
    • Thepa: Na-CMC ke cellulose ether e qhibilihang ka metsing e nang le thepa e matla ea ho tiisa le ho tsitsisa. Hangata e sebelisoa lijong le lits'ebetsong tse fapaneng tsa indasteri.
    • Lisebelisoa: Lihlahisoa tsa lijo (e le sekontiri le se tsitsitseng), meriana, masela, le maro a ho cheka.
  7. Cellulose ea Microcrystalline (MCC):
    • Thepa: MCC e na le likaroloana tse nyane, tse kristale 'me hangata e sebelisoa e le se tlamella le ho tlatsa matlapa a meriana.
    • Lisebelisoa: Matlapa a meriana le li-capsules.
  8. Sodium Carboxymethyl Starch (CMS):
    • Thepa: CMS ke derivative ea starch e nang le thepa e ts'oanang le Na-CMC. E sebelisoa hangata indastering ea lijo.
    • Lisebelisoa: Lihlahisoa tsa lijo (e le sekontiri le se tsitsitseng), masela, le meriana.

Ha u khetha cellulose ether bakeng sa ts'ebeliso e itseng, ho bohlokoa ho nahana ka lintlha tse kang viscosity e hlokahalang, ho qhibiliha, botsitso le litšobotsi tse ling tsa ts'ebetso. Ho feta moo, ho tlameha ho eloa hloko ho latela maemo a taolo le menahano ea tikoloho. Hangata bahlahisi ba fana ka lipampiri tsa data tsa tekheniki tse nang le tlhaiso-leseling e felletseng mabapi le thepa le ts'ebeliso e khothaletsoang ea li-cellulose ethers tse khethehileng.


Nako ea poso: Jan-03-2024