1. Okwu mmalite:
Hydroxypropyl Methylcellulose (HPMC) bụ polymer vasatail eji eme ihe n'ọtụtụ ụlọ ọrụ dị iche iche, gụnyere ọgwụ, ihe owuwu, na nri. Otu n'ime ngwa ya bụ isi bụ imegharị njirimara rheological nke nkwusioru. Rheology, ọmụmụ nke ịgbasa na nrụrụ ihe, dị oke mkpa na nghọta na ịchịkwa omume nke nkwusioru.
2.Ngbanwe viscosity:
A maara HPMC maka ikike ya ịgbanwe viscosity nke nkwusioru. Dị ka polymer hydrophilic, ọ na-amịkọrọ mmiri ngwa ngwa ma mepụta usoro dị ka gel. Mgbe agbakwunyere na nkwusioru, ụmụ irighiri ihe HPMC na-eme ka mmiri na-ekekọta, na-abawanye viscosity nke sistemụ ahụ. Ogo ngbanwe nke viscosity dabere na ihe ndị dị ka itinye uche HPMC, ịdị arọ molekụla, na ogo nke nnọchi. Nleta dị elu na nha molikula nke HPMC na-ebutekarị nkwalite viscosity ka ukwuu.
3. Àgwà ịkpa agwa:
Na mgbakwunye na ịmegharị viscosity, HPMC nwere ike imetụta omume nkwusioru na-akpachapụ anya. Shear-thinning na-ezo aka na mbelata nke viscosity n'okpuru nrụgide shiee etinyere, nke a na-ahụkarị na ọtụtụ sistemu nkwusioru. Ọnụnọ nke HPMC na-agbanwe index omume nkwusioru nke nkwusioru ahụ, na-eduga n'ịkwalite ihe ndị na-eme ka shea dị nro. Ngwongwo a bara uru karịsịa na ngwa ebe achọrọ ịwụsa ma ọ bụ ikesa ngwa ngwa, dị ka n'ụdị ọgwụ ma ọ bụ ngwaahịa nri.
4. Suspension Stability:
Akụkụ ọzọ dị mkpa nke rheology bụ nkwụsi ike nkwusioru, nke na-ezo aka n'ikike nke ụmụ irighiri ihe iji nọgide na-agbasasị ma na-eguzogide sedimentation na oge. HPMC na-arụ ọrụ dị mkpa n'ịkwalite nkwụsi ike nkwusioru site n'ọtụtụ usoro. Firstly, ya ndim mmetụta na-enyere na-egbochi urughuru edozi site na-amụba viscosity nke na-aga n'ihu na-adọ. Nke abuo, HPMC na-etolite ihe mgbochi na gburugburu irighiri ihe, na-ebelata mmekorita interparticle na mkpokọta. Usoro nkwụsi ike a siri ike na-enyere aka ịnọgide na-enwe ịdị n'otu nke nkwusioru ahụ.
5.Mmetụta nke Njirimara HPMC:
Mmetụta rheological nke HPMC na nkwusioru na-emetụta ọtụtụ ihe dị mkpa nke polymer. Ibu arọ nke molekụla na-emetụta oke njikọ nke yinye yana, ya mere, nkwalite viscosity. HPMC dị arọ nke dị elu na-achọ inye nnukwu viscosity na nkwusioru. Degree of nnọchi (DS), nke na-ezo aka ọnụ ọgụgụ nke hydroxypropyl na methoxy otu kwa glucose unit, na-emetụtakwa omume reological. Ụkpụrụ DS dị elu na-ebute hydration siri ike na nhazi gel siri ike, na-eduga n'ịbawanye viscosity.
6. Ngwa bara uru:
Njirimara rheological nke nkwusioru ejiri HPMC gbanwetụrụ na-achọta ngwa zuru ebe niile n'ofe ụlọ ọrụ dị iche iche. N'ime usoro ọgwụ, a na-eji HPMC dị ka onye na-akwụsịtụ iji hụ na nkesa irighiri ọgwụ na-edoghị anya ma kwalite nkwụsi ike. N'ime ihe owuwu dị ka ụrọ simentious na grouts, HPMC na-eme ka arụ ọrụ dịkwuo mma, nrapanye, na nguzogide sag. N'otu aka ahụ, na ngwaahịa nri dị ka sauces, uwe, na ngwaahịa mmiri ara ehi, HPMC na-eme ka udidi, nkwụsi ike, na mmetụta ọnụ.
Hydroxypropyl Methylcellulose (HPMC) bụ polymer multifunctional nke na-emetụta n'ụzọ dị ukwuu na rheological Njirimara nke nkwusioru. Ikike ya igbanwe viscosity, welie omume ịcha akwa, na melite nkwụsi ike nkwusioru na-eme ka ọ bụrụ mgbakwunye bara uru na ụlọ ọrụ dị iche iche. Site n'ịghọta usoro nke HPMC si emekọrịta na nkwusioru, ndị nchọpụta na ndị na-emepụta ihe nwere ike ịhazi ya iji nweta njirimara rheological chọrọ n'ọtụtụ ngwa.
Oge nzipu: Mee-08-2024