Phapano ke efe lipakeng tsa cellulose ether le cellulose?

Cellulose le cellulose ether ka bobeli li nkiloe ho cellulose, polima ea tlhaho e fumanehang maboteng a lisele tsa limela. Leha ho le joalo, li na le phapang e ikhethang meahong ea tsona ea lik'hemik'hale le thepa ea tsona:

1. Sebopeho sa Lik'hemik'hale: Cellulose ke polysaccharide e melang e nang le likaroloana tse pheta-phetoang tsa tsoekere tse hokahantsoeng ka libonto tsa β(1→4) tsa glycosidic. Ke polymer e otlolohileng e nang le tekanyo e phahameng ea crystallinity.
2. Hydrophilicity: Cellulose ka tlhaho e na le hydrophilic, ho bolelang hore e na le kamano e matla ea metsi mme e khona ho monya mongobo o mongata. Thepa ena e susumetsa boits'oaro ba eona lits'ebetsong tse fapaneng, ho kenyelletsa tšebelisano ea eona le lits'ebetso tse thehiloeng metsing joalo ka metsoako ea samente.
3. Sollubility: Pure cellulose ha e qhibilihe ka metsing le boholo ba lihlapolli tsa lintho tse phelang ka lebaka la sebopeho sa eona se nang le kristale e ngata le tlamahano e pharaletseng ea haedrojene lipakeng tsa liketane tsa polima.
4. Derivatization: Cellulose ether ke mofuta o fetotsoeng oa cellulose o fumanoang ka ho tsoa ho lik'hemik'hale. Ts'ebetso ena e kenyelletsa ho hlahisa lihlopha tse sebetsang, joalo ka hydroxyethyl, hydroxypropyl, methyl, kapa lihlopha tsa carboxymethyl, mokokotlong oa cellulose. Liphetoho tsena li fetola thepa ea cellulose, ho kenyelletsa le ho qhibiliha ha eona, boitšoaro ba rheological, le ho sebelisana le lintho tse ling.
5. Solubility ka Metsing: Cellulose ethers hangata e qhibiliha kapa ea qhalana ka metsing, ho latela mofuta o itseng le boemo ba ho nkeloa sebaka. Ho qhibiliha hona ho li etsa hore li be molemo haholo liindastering tse fapaneng, ho kenyeletsoa tsa meriana, lijo, litlolo le kaho.
6. Kopo: Cellulose ethers e fumana ts'ebeliso e atileng joalo ka li-ajenti tse teteaneng, li-stabilizers, li-binders, le li-agents tsa ho etsa lifilimi mefuteng e fapaneng ea lihlahisoa le lits'ebetso. Kahong, hangata li sebelisoa e le litlatsetso linthong tse thehiloeng ho samente ho ntlafatsa ts'ebetso, ho boloka metsi, ho khomarela le thepa e 'ngoe.

Ka kakaretso, ha cellulose le cellulose ether li arolelana tšimoloho e tloaelehileng, cellulose ether e fetotsoe ka lik'hemik'hale ho hlahisa thepa e itseng e etsang hore e qhibilihe kapa e qhalane ka metsing 'me e loketse bakeng sa likopo tse sa tšoaneng moo ho laola boitšoaro ba rheological le ho sebelisana le lintho tse ling ho lakatsehang.