Ịghọta Hydroxypropyl Methyl Cellulose (HPMC)
Hydroxypropyl Methyl Cellulose (HPMC) bụ polima a na-ejikarị eme ihe n'ọtụtụ ụlọ ọrụ dị iche iche, gụnyere ọgwụ, nri, ihe ịchọ mma, na ihe owuwu. Ihe pụrụ iche ya, dịka mmiri ịgbaze, ịgbaze mgbe a na-ekpo ọkụ, na ikike imepụta ihe nkiri, na-eme ka ọ bụrụ ihe bara uru n'ọtụtụ usoro. Otu n'ime ihe dị mkpa nke HPMC bụ viscosity ya, nke na-emetụta ọrụ ya na ojiji ya nke ukwuu.
Ihe Ndị Na-emetụta Viscosity nke HPMC
Ọtụtụ ihe na-emetụta viscosity nke HPMC, gụnyere:
Ibu Molekụla: Oke ibu molekụla nke HPMC na-egosipụtakarị oke viscosity.
Ntinye Uche: Ọbara ọbara na-abawanye ka ọnụọgụgụ HPMC dị na ngwọta ahụ.
Okpomọkụ: Viscosity na-ebelata ka okpomọkụ na-arị elu n'ihi na agbụ polymer na-aghọ ihe na-agagharị agagharị.
pH: HPMC kwụsiri ike n'ofe oke pH, mana ọkwa pH dị oke elu nwere ike imetụta viscosity.
Ọkwa Mgbanwe (DS) na Molar Replacement (MS): Ọkwa mgbanwe (ọnụọgụ nke otu hydroxyl nke ejiri methoxy ma ọ bụ hydroxypropyl otu dochie) na molar replacement (ọnụọgụ nke otu hydroxypropyl kwa otu glucose) na-emetụta ike ịgbaze na viscosity nke HPMC
Viscosity kwesịrị ekwesị maka ngwa dị iche iche
Oke ike HPMC kwesịrị ekwesị dabere na ngwa a kapịrị ọnụ. Lee nkọwa zuru ezu banyere otu ihe achọrọ maka ike viscosity si dị iche iche n'ụlọ ọrụ dị iche iche:
1. Ọgwụ
N'ọgwụ, a na-eji HPMC eme ihe dị ka ihe na-ejikọ ihe, ihe e ji ihe nkiri mee, na ihe na-ewepụta ihe a na-achịkwa n'ime mbadamba na kapsụl.
Mkpuchi Mbadamba: Ọ dị mfe ịnweta site na obere ruo ọkara. HPMC (ọgwụgwọ 3-5% nwere 50-100 cps) dabara adaba maka mkpuchi ihe nkiri, na-enye oyi akwa dị nro ma na-echebe.
Ntọhapụ A Na-achịkwa: A na-eji HPMC dị elu (ọgwụgwọ 1% nwere 1,500-100,000 cps) na mbadamba matrix iji chịkwaa ọnụego mwepụta nke ihe na-arụ ọrụ, na-ahụ na mwepụta na-adịgide adịgide ka oge na-aga.
Ihe Mgbakwunye na Granulation: A na-ahọrọ HPMC (ọgwụgwọ 2% nwere 400-4,000 cps) maka usoro granulation mmiri iji mepụta granules nwere ike igwe dị mma.
2. Ụlọ ọrụ nri
N'ụlọ ọrụ nri, a na-eji HPMC eme ihe dị ka ihe na-eme ka ihe sie ike, ihe na-eme ka ihe sie ike, na ihe na-eme ka ihe sie ike.
Ihe Na-eme Ka O Sie Ike: A na-eji HPMC (ọgwụgwọ 1-2% nwere 50-4,000 cps) eme ka ofe, ihe e ji esi nri, na ofe sie ike.
Emulsifier na Stabilizer: HPMC dị ala (1% ngwọta nwere 10-50 cps) dị mma maka ime ka emulsions na ụfụfụ sie ike, na-enye udidi a na-achọsi ike na ngwaahịa dịka ice cream na ihe ndị a na-etinye n'elu.
3. Ihe ịchọ mma na Nlekọta Onwe Onye
A na-eji HPMC eme ihe ịchọ mma maka ihe ndị na-eme ka ọ sie ike, na-emepụta ihe nkiri, na ihe ndị na-eme ka mmiri dị ọcha.
Mmanụ na ude: HPMC dị obere ruo ọkara (1% ngwọta nwere 50-4,000 cps) na-enye nguzozi na nkwụsi ike achọrọ.
Ngwaahịa Nlekọta Ntutu: A na-eji HPMC (ọgwụ 1% nwere 400-4,000 cps) eme ihe na shampoos na conditioners iji melite udidi na arụmọrụ.
4. Ụlọ ọrụ ihe owuwu
N'ọrụ owuwu, HPMC bụ ihe dị oke mkpa na ngwaahịa dịka ihe nrapado taịlị, plasta, na ihe ndị e ji simenti rụọ.
Ihe Mgbakwunye Taịlị na Mkpọchi: HPMC (ọgwụgwọ 2% nwere 4,000-20,000 cps) na-eme ka ọrụ dịkwuo mma, idobe mmiri, na njirimara njikọta.
Plasta simenti: Ọbara ike HPMC (ọgwụgwọ 1% nwere 400-4,000 cps) na-eme ka mmiri ghara ịda ma ọ bụ ghara ịrụ ọrụ nke ọma, na-egbochi mgbawa ma na-eme ka njedebe ya ka mma.
Nha na Ụkpụrụ Viscosity
A na-ejikarị viscometer atụ viscosity nke HPMC, a na-egosipụtakwa nsonaazụ ya na centipoise (cps). A na-eji usoro ọkọlọtọ dịka Brookfield viscomemetry ma ọ bụ capillary viscomemetry dabere na oke viscosity. A na-eduzi nhọrọ nke ọkwa kwesịrị ekwesị nke HPMC site na nkọwapụta nke ndị nrụpụta nyere, nke gụnyere profaịlụ viscosity zuru ezu.
Ihe Ndị Bara Uru
Mgbe ị na-ahọrọ HPMC maka ngwa a kapịrị ọnụ, e kwesịrị ịtụle ọtụtụ ihe bara uru:
Nkwadebe Ngwọta: Mmiri mmiri nke ọma na ịgbaze dị oke mkpa iji nweta oke ike achọrọ. Ịtinye mmiri nwayọ nwayọ na mmiri na-akpali mgbe niile na-enyere aka igbochi akpụkọ.
Ndakọrịta: A ga-anwale ndakọrịta nke HPMC na ihe ndị ọzọ e ji emepụta ihe iji hụ na ọ kwụsiri ike ma dị irè.
Ọnọdụ Nchekwa: Ọnọdụ nchekwa dịka okpomọkụ na iru mmiri nwere ike imetụta viscosity. Nchekwa kwesịrị ekwesị n'ebe dị jụụ ma kpọọ nkụ dị mkpa iji nọgide na-enwe ụdị HPMC.
Ọdịiche kwesịrị ekwesị nke Hydroxypropyl Methyl Cellulose (HPMC) dịgasị iche iche dabere na ojiji ya, site na obere viscosity maka emulsification na nkwụsi ike na ngwaahịa nri ruo na nnukwu viscosity maka mwepụta ọgwụ a na-achịkwa na ọgwụ. Ịghọta ihe achọrọ kpọmkwem nke ụlọ ọrụ na ngwa ọ bụla dị oke mkpa maka ịhọrọ ọkwa ziri ezi nke HPMC, hụ na arụmọrụ na arụmọrụ kacha mma. Site n'ịtụle ihe ndị dị ka ibu molekul, ntinye uche, okpomọkụ, na pH, ndị nrụpụta nwere ike ịhazi ngwọta HPMC ka ha mezuo mkpa nhazi ziri ezi.
Oge ozi: Mee-22-2024