Hydroxypropylmethylcellulose (HPMC) bụ polymer sitere na cellulose nke a na-ejikarị eme ihe n'ụdị dị iche iche, gụnyere ọgwụ, nri, na ihe owuwu. Okpomọkụ nwere ike inwe mmetụta dị ukwuu na arụmọrụ na omume HPMC.
1. Solubility na mgbasa:
Solubility: HPMC na-egosiputa solubility dabere na okpomọkụ. N'ozuzu, ọ na-agbaze na mmiri oyi karịa na mmiri ọkụ. Ngwongwo a dị oke mkpa maka usoro ọgwụ na-achọ ntọhapụ ọgwụ na-achịkwa.
Mgbasa: Ọnụego mgbasa nke usoro HPMC na-emetụta okpomọkụ. Okpomọkụ dị elu na-ebutekarị mgbasa ngwa ngwa, si otú ahụ na-emetụta kinetics mwepụta ọgwụ na ngwa ọgwụ.
2. Gelation na viscosity:
Gelation: HPMC nwere ike ịmepụta gel na ngwọta mmiri, na usoro gelation na-emetụta okpomọkụ. A na-akwalitekarị Gelation na okpomọkụ dị elu, na-eme ka e nwee netwọk gel kwụsiri ike.
Viscosity: Okpomọkụ na-arụ ọrụ dị mkpa n'ịchọpụta viscosity nke ngwọta HPMC. N'ikwu okwu n'ozuzu, mmụba nke okpomọkụ na-eme ka mbelata nke viscosity. Ihe onwunwe a dị oke mkpa maka ịmepụta mkpuchi, nrapado na ngwa ndị ọzọ chọrọ njikwa viscosity.
3. Nhazi ihe nkiri:
Ihe mkpuchi ihe nkiri: Na ụlọ ọrụ ọgwụ, HPMC na-ejikarị maka mkpuchi ihe nkiri nke mbadamba. Okpomọkụ na-emetụta ihe ndị na-emepụta ihe nkiri nke ngwọta HPMC. Okpomọkụ dị elu nwere ike ime ka usoro ihe nkiri ahụ dịkwuo elu ma na-emetụta àgwà na àgwà nke ihe nkiri mkpuchi.
4. Nkwụsi ike okpomọkụ:
Mmebi: HPMC na-egosipụta nkwụsi ike nke okpomọkụ n'ime oke okpomọkụ. N'ofe oke a, mmebi okpomọkụ nwere ike ime, na-ebute mfu nke viscosity na ihe ndị ọzọ a chọrọ. A ghaghị ịtụle nkwụsi ike nke okpomọkụ nke HPMC na ngwa dị iche iche.
5. Mgbanwe usoro:
Okpomọkụ Ntugharị Glass (Tg): HPMC na-enweta mgbanwe iko n'otu okpomoku akpọrọ iko mgbanwe okpomọkụ (Tg). N'elu Tg, polymer na-esi na iko iko gaa na steeti rubbery, na-emetụta akụrụngwa ya.
6. Mmekọrịta ọgwụ-Polymer:
Nhazi mgbagwoju anya: N'ime usoro ọgwụ, okpomọkụ na-emetụta mmekọrịta dị n'etiti HPMC na ọgwụ. Mgbanwe na okpomọkụ nwere ike iduga n'ịmepụta ogige, na-emetụta ike ọgwụ na ntọhapụ.
7. Nkwụsi ike usoro:
Freeze-Thaw Stability: A na-ejikarị HPMC eme ihe n'ụdị oyi kpọnwụrụ, dị ka desserts oyi kpọnwụrụ. Mgbanwe ọnọdụ okpomọkụ na-emetụta nkwụsi ike ya n'oge oge oyi-ajụjụ. Ịghọta mmetụta nke okpomọkụ dị oke mkpa iji nọgide na-enwe àgwà ngwaahịa.
Okpomọkụ nwere mmetụta dị ukwuu na solubility, mgbasa, gelation, viscosity, nhazi ihe nkiri, nkwụsi ike okpomọkụ, mgbanwe oge, mmekọrịta ọgwụ-polymer, na nkwụsi ike nke HPMC. Ndị na-eme nchọpụta na ndị na-emepụta ihe kwesịrị iji nlezianya tụlee ihe ndị a metụtara okpomọkụ mgbe ha na-eji HPMC na ngwa dị iche iche.
Oge nzipu: Jan-20-2024