Ọdịiche dị n'etiti CMC na HPMC
Carboxymethyl cellulose (CMC) na hydroxypropyl methylcellulose (HPMC) bụ ụdị abụọ nke cellulose mmepụta nke a na-ejikarị na nri, ọgwụ na ụlọ ọrụ nlekọta onwe onye.Ọ bụ ezie na a na-eji ha abụọ eme ihe dị ka thickeners, stabilizers, na emulsifiers, e nwere ụfọdụ ọdịiche dị mkpa n'etiti CMC na HPMC na-eme ka ha dị mma maka ngwa dị iche iche.N'isiokwu a, anyị ga-atụle ndịiche dị n'etiti CMC na HPMC n'ihe gbasara usoro kemịkalụ, ihe onwunwe, ojiji, na nchekwa ha.
- Ọdịdị Chemical
CMC bụ polymer soluble mmiri nke sitere na cellulose, nke bụ polymer eke dị na mgbidi cell osisi.Usoro kemịkalụ nke CMC bụ ndị otu carboxymethyl (-CH2-COOH) na-ejikọta na ọkpụkpụ azụ cellulose.Ogo nke nnọchi (DS) nke CMC na-ezo aka na ọnụọgụ nke otu carboxymethyl dị ugbu a kwa otu anhydroglucose (AGU) nke ọkpụkpụ azụ cellulose.DS nke CMC nwere ike si na 0.2 ruo 1.5, yana ụkpụrụ DS dị elu na-egosi ogo ngbanwe dị elu.
HPMC bụkwa polymer soluble mmiri nke sitere na cellulose.Agbanyeghị, n'adịghị ka CMC, HPMC na-eji hydroxypropyl na otu methyl gbanwetụrụ.A na-ejikọta ìgwè hydroxypropyl (-OCH2CHOHCH3) na ìgwè hydroxyl na azụ azụ cellulose, ebe ndị methyl (-CH3) na-ejikọta na ìgwè hydroxypropyl.Ogo nke nnọchi nke HPMC na-ezo aka na ọnụọgụ hydroxypropyl na methyl dị ugbu a kwa AGU nke ọkpụkpụ azụ cellulose.DS nke HPMC nwere ike si na 0.1 ruo 3.0, yana ụkpụrụ DS dị elu na-egosi ogo ngbanwe dị elu.
- Njirimara
CMC na HPMC nwere ihe dị iche iche na-eme ka ha dị mma maka ngwa dị iche iche.Ụfọdụ n'ime ihe ndị bụ isi nke CMC na HPMC ka edepụtara n'okpuru:
a.Solubility: CMC bụ nke ukwuu soluble na mmiri na-emepụta doro anya, viscous ngwọta.HPMC dịkwa oke soluble na mmiri, mana ihe ngwọta nwere ike ịbụ turbid dabere na ogo nnọchi.
b.Rheology: CMC bụ ihe pseudoplastic, nke pụtara na ọ na-egosipụta àgwà mkparị.Nke a pụtara na viscosity nke CMC na-ebelata ka ọnụ ọgụgụ shear na-abawanye.N'aka nke ọzọ, HPMC bụ ihe Newtonian, nke pụtara na viscosity ya na-anọgide na-adịgide adịgide n'agbanyeghị ọnụ ọgụgụ shear.
c.Ihe na-emepụta ihe nkiri: CMC nwere ezigbo ihe na-emepụta ihe nkiri, nke na-eme ka ọ dị mma maka iji mkpuchi na ihe nkiri.HPMC nwekwara ihe ndị na-emepụta ihe nkiri, mana ihe nkiri ahụ nwere ike na-agbakasị ma na-adịkarị mfe ịgbawa.
d.Nkwụsi ike: CMC kwụsiri ike n'ọtụtụ pH na ọnọdụ okpomọkụ.HPMC kwụsiri ike karịa oke pH, mana oke okpomọkụ nwere ike imetụta nkwụsi ike ya.
- Na-eji
A na-eji CMC na HPMC n'ọtụtụ ngwa na nri, ọgwụ na ụlọ ọrụ nlekọta onwe onye.Ụfọdụ n'ime isi ojiji nke CMC na HPMC ka edepụtara n'okpuru:
a.Ụlọ ọrụ nri: A na-ejikarị CMC eme ihe dị ka ihe na-agbapụta, stabilizer, na emulsifier na ngwaahịa nri dị ka ice cream, akwa salad, na ngwaahịa esi nri.A na-ejikwa HPMC dị ka thickener na stabilizer na ngwaahịa nri, mana a na-ejikarị ya dị ka ihe mkpuchi maka ngwaahịa confectionery dị ka candies gummy na chocolates.
b.Ụlọ ọrụ na-emepụta ọgwụ: A na-eji CMC mee ihe dị ka ihe nkedo, nkwụsịtụ, na onye na-ekpuchi mbadamba nkume na usoro ọgwụ.A na-ejikwa HPMC dị ka ihe nkedo, disintegrant, na mbadamba ihe mkpuchi n'ụdị ọgwụ.
Oge nzipu: Mar-01-2023