A na cellulose ether ea qhibiliha?

A na cellulose ether ea qhibiliha?

Li-cellulose ethers hangata li qhibiliha ka metsing, e leng e 'ngoe ea litšobotsi tsa tsona tsa bohlokoa. Ho qhibiliha ha metsi ha cellulose ethers ke phello ea liphetoho tsa lik'hemik'hale tse entsoeng ho polymer ea tlhaho ea cellulose. Li-ether tse tloaelehileng tsa cellulose, tse kang Methyl Cellulose (MC), Hydroxyethyl Cellulose (HEC), Hydroxypropyl Methyl Cellulose (HPMC), le Carboxymethyl Cellulose (CMC), li bonts'a likhato tse fapaneng tsa ho qhibiliha ho itšetlehile ka libopeho tsa tsona tse khethehileng tsa lik'hemik'hale.

Mona ke kakaretso e khuts'oane ea ho qhibiliha ha metsi ho tse ling tse tloaelehileng tsa cellulose ethers:

  1. Methyl Cellulose (MC):
    • Methyl cellulose e qhibiliha ka metsing a batang, e etsa tharollo e hlakileng. The solubility e susumetsoa ke tekanyo ea methylation, ka likhato tse phahameng tsa ho fetola tse lebisang ho solubility e tlaase.
  2. Hydroxyethyl Cellulose (HEC):
    • Hydroxyethyl cellulose e qhibiliha haholo metsing a chesang le a batang. Ho qhibiliha ha eona ho batla ho sa amehe ke mocheso.
  3. Hydroxypropyl Methyl Cellulose (HPMC):
    • HPMC e qhibiliha ka metsing a batang, 'me ho qhibiliha ha eona ho eketseha ka mocheso o phahameng. Sena se lumella boemo bo laolehang le bo feto-fetohang ba solubility.
  4. Carboxymethyl Cellulose (CMC):
    • Carboxymethyl cellulose e qhibiliha habonolo metsing a batang. E theha litharollo tse hlakileng, tse hlakileng tse nang le botsitso bo botle.

Ho qhibiliha ha metsi ha cellulose ethers ke thepa ea bohlokoa e kenyang letsoho ts'ebelisong ea bona e atileng lits'ebetsong tse fapaneng ho pholletsa le indasteri. Litharollong tse nang le metsi, li-polymer tsena li ka kena lits'ebetsong tse joalo ka hydration, ho ruruha le sebopeho sa lifilimi, li li etsa tsa bohlokoa mekhoeng e joalo ka likhomaretsi, likoahelo, meriana le lihlahisoa tsa lijo.

Ho bohlokoa ho hlokomela hore le hoja li-cellulose ethers hangata li qhibiliha ka metsing, maemo a khethehileng a ho qhibiliha (joaloka mocheso le mahloriso) a ka fapana ho itšetlehile ka mofuta oa cellulose ether le tekanyo ea eona ea ho fetola. Baetsi le baetsi ba lihlahisoa hangata ba nahana ka lintlha tsena ha ba rala lihlahisoa le litlolo.


Nako ea poso: Jan-01-2024