U ka etsa joang ho etsa calllolose ether?

Ho hlahisoa ha bo-mme-bo-call cellulose ho kenyelletsa ho fetola lik'hemik'hale ka lik'hemik'hale, hangata e nkiloe ho pulp kapa k'hothone ea lik'hemik'hale. Mefuta e atileng haholo ea Celny Cellulose (MC), hydroxeseyyl methyl cellulose (coldroxypropy Ts'ebetso e tobileng e ka fapana ka mokhoa o ikhethileng oa khetla e itseng, empa mehato e akaretsang e tšoana. Mona ke kakaretso e nolofalitsoeng:

Mehato e akaretsang ea ho etsa seo e leng ho se bo-'mè:

1. Mohloli oa Moutlo:

• Lintho tse qalang ke Celulose ea Chefo, hangata e tsoang ho pulp kapa k'hothone. Ka tloaelo cellulose hangata ka mokhoa oa phofo e hloekisitsoeng.

2. Alkalization:

• Klsebeulose e phekoloa ka tharollo ea alkaline, e kang sodium hydroxide (Naoh), ho kenya likheo tsa hydroyl ka ketane ea celdroule. Mohato ona oa alkalization ke oa bohlokoa bakeng sa ts'ebetso e 'ngoe hape.

3. TLHOKOMELISO:

• Nonyana e nang le alkali e nang le alkava e nang le menyetla, moo lihlopha tse fapaneng tsa ether li kentsoeng ho sejo se ka morao sa cellulose. Mofuta o ikhethileng oa sehlopha se hlahisitsoeng (Methyl, hydroxyetey, hydroxypropy, carboxe)
• Ts'ebetso ea phallo e kenyelletsa karabelo ea celluulose e nang le Reagents tse loketseng, joalo ka:
  • Bakeng sa Methyl Cellulose (MC): Phekolo ea Diethyl Sulfate kapa Methyl chloride.
  • Bakeng sa hydroxethyl cellulosese (Hec): kalafo e nang le oxide ea Ethylene.
  • Bakeng sa hydroxypropypropinyl methyl cellulolose (HPMC): kalafo e nang le Oxide Oxide le Methyl chloride.
  • Bakeng sa celboxymethyl cellulolose (cmc): kalafo ka sodium chlorosacetate.

4. Nolofazation le ho hlatsoa:

• Kamora hore menyetla e mengata, e behang celsilose e hlahisoang hangata ha e nke lehlakore ho tlosa alkali efe kapa efe ea nako e setseng. Sehlahisoa se hlatsoa ho felisa litšila le lihlahisoa tse ngata.

5. Ho omella le milling:

• Ether ether ea Cellulose e omme ho tlosa mongobo o feteletseng ebe o chetoa phofo e ntle. Boholo ba tsona bo ka laoloa ho latela kopo e reriloeng.

6. Taolo ea boleng:

• Liteko tsa ho qetela tsa cellulolese li ka ba le liteko tsa taolo ea boleng ho netefatsa hore li kopana le litlhaloso tse itseng, ho kenyelletsa le pono, mongobo oa mongobo, boholo ba mofuta oa karoloana.

Ho bohlokoa ho hlokomela hore tlhahiso ea li-ethens ea cellulose e etsoa ke baetsi ba ikhethileng ba sebelisang mekhoa e laoloang. Maemo a itseng, reagens, le lisebelisoa tse sebelisoang li ka fapana ka thepa e lakatsehang ea Ether le kopo e reriloeng. Ho feta moo, mehato ea polokeho e bohlokoa nakong ea ts'ebetso ea liphetoho tsa lik'hemik'hale.