Hydroxypyl Methylcelllose (Hpmc) bụ polymer nke dị iche iche n'ọtụtụ ụlọ ọrụ, gụnyere ọgwụ, ihe ịchọ mma, nri, na owuwu. Ike ya iji ụdị osisi, ihe nkiri, na ngwọta na-eme ka ọ bụrụ ihe bara uru maka ọtụtụ ngwa. Hydration nke Hpmc bụ ihe dị mkpa n'ọtụtụ usoro, n'ihi na ọ na - enyere polymer aka igosipụta ihe ọ chọrọ n'ụzọ dị irè.
1. Nghọta HPMC:
HPMC bụ usoro nke cellulose ma na-ahụkarị site na ịgwọ Cellosuse na propylene oxide na methyl chloride. Ejiri ya na mmiri ya na-agbasa ya na ike iji mejupụta mkpụrụ osisi, na-agbanwe agbanwe. Ogo nke hydroxypyl na methoxy na methoxy na-emetụta ihe Njirimara ya, gụnyere soldọnọ, viscosity, na omume geleScosity.
2. Mkpa nke hydration:
Hydration dị mkpa iji kpọghee arụ ọrụ HPMC. Mgbe hpmc, ọ na-amị mmiri ma sọks, na-eduga na nguzobe nke ngwọta vis ma ọ bụ gel, dabere na ntinye uche na ọnọdụ. Ọnọdụ a na-enye aka na-enyere HPMC aka iji rụọ ọrụ ebumnuche ya, dị ka oke, na-emepụta ihe nkiri, na ịgha mkpụrụ ọgwụ.
3. Usoro nke Hydration:
E nwere ọtụtụ usoro maka hpdrating Hpmc, dabere na ngwa ahụ ma na-achọsi ike:
a. Achịcha mmiri oyi:
Usoro a gụnyere ịgbasa ntụ ntụ hpmc na mmiri oyi mgbe ị na-akpali ya nwayọ.
A na-ahọrọ ịgbasa mmiri oyi iji gbochie clumping ma hụ hydration.
Mgbe mgbasa, a na-ahapụ ihe ngwọta ya ka ọ bụrụ ihe ga-eme ka ọ dị nro n'okpuru mkpagbu dị nro iji nweta vioccosid chọrọ.
b. Mgbasa mmiri mmiri na-ekpo ọkụ:
N'ime usoro a, a na-agbasa ntụ ntụ ntụ ntụ na mmiri ọkụ, na-abụkarị okpomọkụ dị elu 80 Celsius.
Mmiri ọkụ na-eme ka Hydration ngwa ngwa na mgbasa nke HPMC, na-ebute n'ụzọ doro anya.
A ga-emerịrị nlekọta iji zere ikpochapụ oke, nke nwere ike ime ka HPMC ma ọ bụ bute usoro.
c. Neutralization:
Ngwa ụfọdụ nwere ike ịgụnye ngwọta HPMC na ndị ọrụ alkaline dị ka sodium hydroxide ma ọ bụ potassium hydroxide.
Nnọpụ iche na-agbanwe otu ngwọta ahụ, nke nwere ike imetụta viscosise na akụrụngwa nke HPMC.
d. Mgbakwunye Exchange:
Enwere ike iji hpmc gbanwere site na mgbanwe nke mmiri, ebe ọ na-agbasasị mmiri dị ka ethanol ma ọ bụ methanol ma jiri mmiri gbanwere.
Mgbanwe mgbanwe nwere ike ịba uru maka ngwa chọrọ nchịkwa zuru oke na hydration na visce.
e. Pre-hydration:
Hydration hydration na-agụnye hpmc na mmiri ma ọ bụ ihe mgbaze tupu itinye ya na usoro.
Usoro a na-esonye hydration wddration ma nwee uru iji rụpụta nsonaazụ na-agbanwe agbanwe, karịsịa na usoro dị mgbagwoju anya.
4. Ihe ndị na-emetụta hydration:
Ọtụtụ ihe na-emetụta hydration nke hpmc:
a. Oke uruku: Mill Milled Hpmc Hydrates Ahịhịa ngwa ngwa karịa ngwaa siri ike n'ihi mmụba elu elu.
b. Ọnọdụ okpomọkụ: elu okpomọkụ n'ozuzu mee ka ọ dị ike na-eme ka hydreation kamakwa imetụta viscosity na ụdị mmekọahụ nke HPMC.
c. PH: pH nke hydration ọkara nwere ike imetụta ọnọdụ ionization nke HPMC ma yabụ na njikwa ndị kineticals na ihe ndị na-egbu egbu.
d. Mixgwakọta: Migninggwakọta ma ọ bụ ịkpa ụka dị oke mkpa maka hydration hydration na mgbasa nke hpmc na mgbatị ahụ.
e. Ilegide: Nụrụ nke HPMC na hydration ọkara na-emetụta viscosity, gel ike, na ihe ndị ọzọ akụrụngwa nke ihe ngwọta ma ọ bụ gel.
5. Ngwa:
HPDRED HPMC na-ahụ ngwa dị iche iche n'ofe ọrụ dị iche iche:
a. Usoro ọgwụgwọ ọgwụ: N'ala ndị na-ere ọgwụ, matriki na-achịkwa, ngwọta nke Ophthalmic, na nkwụsị.
b. Ngwaahịa nri: dị ka thitener, mmachi, ma ọ bụ onye na-ahụ maka ihe nkiri na sauces, akwa, ngwaahịa mmiri ara ehi, na ntụgharị.
c. Cosmetics: Na ude, lotions, gels, na udiri udiri ndi ozo maka mgbanwe viscosit na momullification.
d. Ihe eji eme ihe: na ngwaahịa ciment nke si na ciment, na-adhasi adhesives, na nd i na-ad ur u iji meziwanye oru, ijide mmiri, na adresion.
6. Njikwa dị mma:
Hydration hydration nke Hpmc dị oke mkpa maka arụmọrụ ngwaahịa na nguzosi ike. Usoro njikwa dị mma nwere ike ịgụnye:
a. Nyochaa ururu: na-ejide otu akụkụ nke nkesa nha iji bulie hydration kinetics.
b. Nga viscositions: nlekota viscosity n'oge hyd iji nweta ihe achọrọ maka ngwa.
c. Nlekota na - elekota: na - achikota ph of hydration abuo iji bulie hydration ma gbochie imebi emebi.
d. Nlele microScopic: nyocha nke nlele nke nlele a na-eme n'okpuru microscope iji chọpụta nsị na iguzosi ike n'ezi ihe.
7. Mmechi:
Hydration bụ usoro dị mkpa n'iji ngwa Njirimara nke HPMC maka ngwa dị iche iche. Ghọta usoro, ihe ndị na-ejikarị njikwa ihe jikọtara ya na hydration dị mkpa iji na-emepụta arụmọrụ ngwaahịa na nke na-adịgide adịgide na idobe. Site n'ilekọta hydration nke hpmc, ndị na-eme nchọpụta na ndị na-eme ya nwere ike imeghe ike ya zuru oke na nnukwu ụlọ ọrụ, na-eme ihe nkiri na mmepe ngwaahịa.
Oge Post: Mar-04-2024