HydroxyethylcelluloseHECbụ polima na-agbaze na mmiri nke na-abụghị ionic nke a na-agbaze na mmiri ọkụ na oyi. Usoro HEC nke Hydroxyethylcellulose nwere ọtụtụ viscosities, ihe ngwọta mmiri niile bụkwa mmiri Newtonian.
Hydroxyethyl cellulose bụ ihe mgbakwunye dị mkpa na ngwaahịa kemịkalụ kwa ụbọchị. Ọ bụghị naanị na ọ nwere ike ime ka mmiri mmiri ma ọ bụ ihe ịchọ mma emulsion dịkwuo mma, kamakwa ọ na-eme ka mgbasa na nkwụsi ike ụfụfụ dịkwuo mma.
uru:
1. Nwere ezigbo mmiri mmiri.
2. Nwere ezigbo nguzozi na jupụta.
3. Ezigbo ihe onwunwe nke na-emepụta fim.
4. O nwere arụmọrụ dị oke ọnụ ahịa.
5. O nwere ezigbo ọkwa nnọchi iji hụ na ngwaahịa ahụ na-adịgide adịgide ruo ogologo oge megide eruru.
Ogo Polymerization:
E nwere otu hydroxyl atọ na nkeji anhydroglucose ọ bụla na cellulose, nke a na-eji alkali agwọ na mmiri sodium hydroxide iji nweta nnu sodium cellulose, wee na-enweta mmeghachi omume etherification na ethylene oxide iji mepụta hydroxyethyl cellulose ether. N'ime usoro nhazi hydroxyethyl cellulose, ethylene oxide nwere ike dochie otu hydroxyl na cellulose, ma na-enweta mmeghachi omume polymerization chain na otu hydroxyl na otu ndị a gbanwere.
Hydroxyethylcellulose nwere ezigbo ihe ndị na-eme ka mmiri dị ọcha. Mmiri ya dị nro ma dịkwa otu, ọ na-agba mmiri nke ọma ma na-eme ka ọ dị larịị. Ya mere, ihe ịchọ mma nwere hydroxyethyl cellulose nwere ezigbo njupụta na ihe zuru oke n'ime akpa ahụ, ma na-agbasa ngwa ngwa n'ahụ na ntutu na akpụkpọ ahụ mgbe etinyere ya. A na-ejikarị ya eme ihe n'ihe ndị na-eme ka ọ dị nro, ihe ndị a na-asa ahụ, ncha mmiri mmiri, gel na ụfụfụ a na-akpụ akpụ, ihe nhicha ezé, ihe na-eme ka ọ ghara ịfụ ụfụ siri ike, anụ ahụ (ụmụaka na ndị toro eto), gel ndị na-eme ka ọ dị mma.
Na mgbakwunye na njikwa mmiri mmiri,hydroxyethyl cellulosenwere ezigbo ihe eji emepụta fim. Ihe nkiri a kpụrụ akpụ ga-adị n'ọnọdụ zuru oke n'okpuru nyocha enyo 350x na 3500x, ọ na-ewetakwa akpụkpọ ahụ dị nro nke ọma mgbe etinyere ya na ihe ịchọ mma.
Oge ozi: Eprel-25-2024