Ike nchekwa mmiri nke hydroxypropyl methylcellulose dabere na ọdịnaya hydroxypropyl. N'otu ọnọdụ ahụ, ikike nchekwa mmiri nke hydroxypropyl methylcellulose dị elu na-esikwu ike, ọdịnaya methoxy nke otu ọdịnaya hydroxypropyl na-ebelatakwa nke ọma. . Ka ọdịnaya nke hydroxypropyl methylcellulose dị elu, otú ahụ ka viscosity ya na-abawanye, yabụ mgbe ị na-ahọrọ ngwaahịa, ị ga-ahọrọ ngwaahịa dabara gị dịka ebumnuche nke ngwaahịa ahụ si dị.
Okpomọkụ na ihe ndị ọzọ nwere mmetụta na mmiri hydroxypropyl methylcellulose jigide.
Okpomọkụ jel okpomọkụ:
Cellulose ether HPMC nwere oke okpomọkụ na-ekpo ọkụ ma na-echekwa mmiri nke ọma; kama nke ahụ, ọ naghị ejide mmiri nke ọma.
Viscosity nke cellulose ether HPMC:
Mgbe viscosity nke HPMC mụbara, viscosity nke mmiri ya na-abawanye; mgbe viscosity mụbara ruo n'ókè ụfọdụ, mmụba nke viscosity nke mmiri na-ebelata.
Cellulose ether HPMC yiri:
HPMC nwere otu mmeghachi omume, nkesa otu nha nke methoxyl na hydroxypropoxyl, ma nwee ezigbo njigide mmiri.
Usoro ọgwụgwọ cellulose ether HPMC:
Ka usoro ọgwụgwọ ahụ na-abawanye, otú ahụ ka ọnụego nchekwa mmiri na-abawanye ma na-eme ka mmetụta nchekwa mmiri pụta ìhè.
Mgbe ego mgbakwunye ahụ bụ 0.25 ~ 0.6%, ọnụego nchekwa mmiri na-abawanye ngwa ngwa ka ego mgbakwunye ahụ na-abawanye; mgbe ego mgbakwunye ahụ na-abawanye, mmụba nke ọnụego nchekwa mmiri na-ebelata.
Na nkenke, njide mmiri nke HPMC metụtara ihe ndị dị ka okpomọkụ na viscosity, njigide mmiri ya na-adaberekwa na ọnụọgụ hydroxypropyl methylcellulose agbakwunyere. Mgbe ọnụọgụ hydroxypropyl methylcellulose ruru uru ụfọdụ, arụmọrụ njigide mmiri ya na-eru nguzozi.
Oge ozi: Febụwarị-23-2023