Lintho tsa Physicochemical tsa Cellulose Ethers

Thepa ea physicochemical ea cellulose ethers, e leng li-derivatives tsa cellulose tse fetotsoeng ka mekhoa ea lik'hemik'hale, li fapana ho latela lintlha tse kang mofuta o itseng oa cellulose ether, degree of substitution (DS), boima ba molek'hule, le litšobotsi tse ling tsa sebopeho. Mona ke tse ling tsa bohlokoa tsa physicochemicals tse atisang ho amahanngoa le cellulose ethers:

1. Sollubility:

• Ho qhibiliha ha Metsi:Li-cellulose ethershangata li qhibiliha ka metsing, 'me li etsa litharollo tse hlakileng le tse hlakileng ha li kopane le metsi. Tekanyo ea ho qhibiliha e ka susumetsoa ke mofuta o itseng oa cellulose ether le DS ea eona.

2. Sebopeho sa Lik'hemik'hale:

• Li-cellulose ethers li boloka sebopeho sa motheo sa selulose, se nang le likarolo tse pheta-phetoang tsa tsoekere tse kopantsoeng ke li-bond β-1,4-glycosidic. Phetoho ea lik'hemik'hale e hlahisa lihlopha tse fapaneng tse nkang sebaka, joalo ka hydroxyethyl, hydroxypropyl, kapa carboxymethyl, ho latela mofuta oa cellulose ether.

3. Degree of Substitution (DS):

• DS e bontša palo e tloaelehileng ea lihlopha tse nketsoeng sebaka ka unit ea anhydroglucose ka har'a ketane ea cellulose. E susumetsa haholo thepa ea cellulose ethers, joalo ka ho qhibiliha ha metsi, viscosity, le ts'ebetso.

4. Boima ba Molek'hule:

• Boima ba molek'hule ba cellulose ethers bo fapana ho latela ts'ebetso ea tlhahiso le kopo e lakatsehang. Ka mohlala, li-cellulose ethers tse boima ba limolek'hule li ka 'na tsa bontša mefuta e sa tšoaneng ea rheological le viscosity ha e bapisoa le lik'hamphani tse tlaase tsa boima ba limolek'hule.

5. Viscosity:

• Li-cellulose ethers li sebetsa e le li-thickeners tse sebetsang hantle, 'me viscosity ea tsona ke thepa ea bohlokoa lits'ebetsong tse ngata. Viscosity e ka susumetsoa ke lintho tse kang ho tsepamisa mohopolo, mocheso le boima ba limolek'hule. Limolek'hule tse phahameng tsa cellulose ethers hangata li tlatsetsa ho viscosity e phahameng.

6. Lintho tsa Rheological:

• Boitšoaro ba rheological ba cellulose ethers bo khetholla phallo ea bona le litšobotsi tsa deformation. E susumetsoa ke lintho tse kang ho tsepamisa mohopolo, sekhahla sa ho kuta, le mocheso. Li-cellulose ethers li tsebahala ka ho bonts'a boits'oaro ba pseudoplastic, moo viscosity e fokotsehang ka sekhahla sa ho kuta.

7. Sebopeho sa Gel:

• Li-ether tse ling tsa cellulose li na le bokhoni ba ho etsa li-gel tlas'a maemo a itseng, tse tlatsetsang ts'ebetsong ea tsona e le li-thickeners le stabilizers mefuteng e sa tšoaneng.

8. Lintho tsa ho Etsa Lifilimi:

• Li-cellulose ethers tse ling li bonts'a thepa ea ho etsa lifilimi, li etsa lifilimi tse tšesaane, tse bonaletsang holim'a metsi. Thepa ena e sebelisoa ho lira, likhomaretsi le lits'ebetso tse ling.

9. Paballo ea Metsi:

• Hangata li-cellulose ethers li na le thepa e ntle ea ho boloka metsi, e leng se etsang hore e be ea bohlokoa ho thepa ea kaho, moo e thusang ho laola nako ea ho omisa le ho ntlafatsa bokhoni ba ho sebetsa.

10. Sensitivity ea Mocheso:

11. Ho tsitsa ha Lik'hemik'hale:

12. Reversible:

13. Ho lumellana:

Ho utloisisa litšobotsi tsena tsa physicochemicals ho bohlokoa bakeng sa ho loants'a li-cellulose ethers ho ts'ebeliso e ikhethileng indastering e joalo ka kaho, meriana, lijo, litlolo le paballo. Hangata bahlahisi ba fana ka lintlha tse qaqileng le tataiso bakeng sa tšebeliso ea lihlahisoa tsa bona tsa cellulose ether lits'ebetsong tse fapaneng.