Nwere ike HPMC na CMC Mix
Methyl cellusedị ọcha ma ọ bụ ọcha dị ka fibrous ma ọ bụ ntụ ntụ; Ọkpụkpụ, enweghị atụ. Ngwaahịa a na mmiri na-agbanye n'ime ngwọta siri ike ma ọ bụ nke siri ike collodal; Insoluble na ethanol, chloroform ma ọ bụ diethyl ether. Ọ na-agbasa ngwa ngwa ma skro na mmiri ọkụ na 80-90 ℃, ma kpoo ngwa ngwa mgbe oyi jụrụ. Ngwọta ala ahụ dị oke mma na ụlọ okpomọkụ, ma nwee ike gel na oke okpomọkụ, na gel nwere ike ịgbanwe na ngwọta ya na ọnọdụ okpomọkụ.
Ọ nwere ọtụtụ mgbatị, mgbasa, adhesion, na-adị, emulsific, mmiri na ihe nkiri, yana mmanụ na-ewu ewu. Ihe nkiri ahụ nwere oke ike, mgbanwe na nghọta. N'ihi na ọ bụ nke na-abụghị nke Ionic, ọ nwere ike dakọtara na emulsifiers ndị ọzọ, ma ihe ngwọta ahụ kwụsiri ike na mpaghara ph2 - 12. bụ nke Anionic sel na-acha ọcha, ọ na-acha ọcha ma ọ bụ mmiri ara ehi ọcha, njupụta 0.5-0.7 g / cubic centimita, ọ bụ pubic centimita, na-enweghị isi, hygroscopic. Ọ dị mfe ịgbasa mmiri n'ime mmiri gaa na gelatinous gelatinous, na-ekwenye na ethanol na songes ndị ọzọ.
Mgbe pH nke ihe a bụ 6.5 - 8.5, viscosity nke slurry na-ebelata ihe mgbe pH bụ 7 20, Ngwa ngwa soruble na mmiri, ntụghari; Ọ dị mma na ngwọta alkaline, ma dị mfe hydrolyze n'ihe banyere acid. Mgbe uru plọ bara uru 2-3, ọdịda ga-eme, na ọdịda ga-apụta n'ihe banyere nnu ma ọtụtụ nnu. Hydroxypylthyl methyl Cellulose, nke a makwaara hydropyythl methyl othyylyyl na-adị ọcha, n'okpuru ọnọdụ alkaline site na ogo pụrụ iche.
Na-agbanye mmiri na mmiri na ọtụtụ polar c na kwesịrị ekwesị nke ethanol / Mmiri, na-arịa ọrịa, ọzịza na mmiri oyi n'ime doro anya ma ọ bụ nke na-achasi ike. Ngwọta osisi nwere ọrụ dị elu, nghọta dị elu na arụmọrụ kwụ ọtọ.Hpmcnwere ala nke gel. Mgbe kpochara oku, ihe omuma nke ihe omuma di iche iche bu kwa mmiri. Ọnọdụ gel nke nkọwapụta dị iche iche dị iche.
Oge post: Apr-25-2024