N'ozuzu, viscosity nke njupụta dị n'ime ahụhydroxypropyl methylcellulosedị elu karịa, mana ọ daberekwa n'ogo nnọchi na nkezi ogo nnọchi. Hydroxypropyl methylcellulosebụ cellulose ether na-abụghị ionic nke nwere ntụ ntụ ọcha, ọ dịghịkwa isi na ụtọ, ọ na-agbaze na mmiri na ọtụtụ ihe mgbaze organic polar, yana oke kwesịrị ekwesị nke ethanol/mmiri, propanol/mmiri, dichloroethane, wdg., nke na-anaghị agbaze na acetone na ethanol zuru oke, na-agbaze ka ọ bụrụ colloid doro anya ma ọ bụ dị ntakịrị na mmiri oyi. Mmiri mmiri ahụ nwere ọrụ elu, na-emepụta ihe nkiri dị gịrịgịrị mgbe ọ kpọchara nkụ, na-agbanwe site na sol gaa na gel n'usoro mgbe a na-ekpo ọkụ ma na-ajụ oyi. Ngosipụta dị elu na arụmọrụ kwụsiri ike.
Hydroxypropyl methylcellulose nwere ihe onwunwe nke gelation okpomọkụ. Mgbe mmiri mmiri nke ngwaahịa ahụ kpoo ọkụ, ọ na-emepụta gel ma na-agbaze, ma na-agbaze mgbe ọ jụrụ oyi. Okpomọkụ gelation nke nkọwapụta dị iche iche dị iche. Mmiri ịgbaze na-agbanwe site na viscosity. Ka viscosity dị ala, otú ahụ ka mmiri ịgbaze na-abawanye. Njirimara nke hydroxypropyl methylcellulose nwere nkọwapụta dị iche iche dị iche. Uru pH anaghị emetụta mgbasa nke hydroxypropyl methylcellulose na mmiri.
Atụmatụ: O nwere njirimara nke ikike ịka nká, mwepụ nnu, nkwụsi ike PH, idobe mmiri, nkwụsi ike nha, ihe onwunwe dị mma nke na-emepụta fim, ọtụtụ iguzogide enzyme, mgbasa na njikọta.
Ihenjigide mmiriIhe ndị a na-emetụtakarị ngwaahịa hydroxypropyl methylcellulose:
1. Nha nhata nke hydroxypropyl methylcellulose
A na-ekesa hydroxypropyl methylcellulose, methoxyl na hydroxypropoxyl nke e ji otu olu mee, ha na-adịkwa elu.
2. Okpomọkụ jel hydroxypropyl methylcellulose
Ka okpomọkụ jel okpomọkụ dị elu, otú ahụ ka ọnụego nchekwa mmiri dị elu; Ma ọ bụghị ya, ọnụego nchekwa mmiri na-ebelata.
3. Viscosity nke hydroxypropyl methylcellulose
Mgbe viscosity nke hydroxypropyl methylcellulose mụbara, ọ̀tụ̀tụ̀ njide mmiri na-abawanye; mgbe viscosity ruru ọkwa ụfọdụ, mmụba nke ọ̀tụ̀tụ̀ ijide mmiri na-adịkarị nwayọ.
4. Ọnụọgụ hydroxypropyl methylcellulose agbakwunyere
Ka ọnụọgụgụ hydroxypropyl methylcellulose dị ukwuu, otú ahụ ka ọnụego nchekwa mmiri na-abawanye ma na-eme ka mmetụta nchekwa mmiri ka mma. N'ime oke mgbakwunye 0.25-0.6%, ọnụego nchekwa mmiri na-abawanye ngwa ngwa ka mmụba nke ọnụọgụ mgbakwunye ahụ na-abawanye; mgbe ọnụọgụ mgbakwunye ahụ na-abawanye, mmụba nke ọnụego nchekwa mmiri na-ebelata.
Oge ozi: Ọgọst-28-2023