Carboxymethylcellulose (CMC) na methylcellulose (MC) bụ ihe sitere na cellulose, polima eke a na-ahụ na mgbidi sel nke osisi. A na-eji ihe ndị a eme ihe nke ukwuu n'ọtụtụ ụlọ ọrụ n'ihi ihe pụrụ iche ha nwere. N'agbanyeghị na ha nwere otu ihe ha na-eme, CMC na MC nwere ọdịiche dị iche iche n'ihe owuwu kemịkalụ ha, ihe onwunwe ha, ngwa ha, na ojiji ha n'ụlọ ọrụ mmepụta ihe.
1. Nhazi Kemịkalụ:
Carboxymethylcellulose (CMC):
A na-emepụta CMC site na etherification nke cellulose na chloroacetic acid, nke na-eme ka e jiri carboxymethyl groups (-CH2COOH) dochie otu hydroxyl (-OH) na ọkpụkpụ azụ cellulose.
Ogo nke nnọchi (DS) na CMC na-ezo aka na ọnụọgụgụ nke otu carboxymethyl kwa otu glucose dị na yinye cellulose. Paramita a na-ekpebi ihe onwunwe nke CMC, gụnyere ịgbaze, viscosity, na omume rheological.
Methylcellulose (MC):
A na-emepụta MC site na nnọchi nke otu hydroxyl na cellulose na otu methyl (-CH3) site na etherification.
Dịka CMC si dị, ihe ndị dị na MC na-emetụta site na ọkwa nke nnọchi, nke na-ekpebi oke methylation n'akụkụ usoro cellulose.
2.Mgbaze:
Carboxymethylcellulose (CMC):
CMC na-agbaze na mmiri ma na-emepụta ihe ngwọta doro anya, viscous.
Mmiri ya na-agbaze dabere na pH, yana mmiri ya na-agbaze karịa na ọnọdụ alkaline.
Methylcellulose (MC):
A na-agbazekwa MC n'ime mmiri, mana ọ na-agbaze dabere na okpomọkụ.
Mgbe a gbazere ya na mmiri oyi, MC na-emepụta gel, nke na-agbaze mgbe ọ kpochara ọkụ. Ihe a na-eme ka ọ dị mma maka iji gel a na-achịkwa.
3. Ọdịdị anya:
CMC:
Na-egosipụta oke viscosity na mmiri mmiri, na-enye aka na njirimara ya nke ịcha.
Enwere ike ịgbanwe viscosity ya site na ịgbanwe ihe ndị dị ka ntinye uche, ogo nnọchi, na pH.
MC:
Na-egosi àgwà viscosity yiri CMC mana ọ naghị apụta ìhè nke ọma.
Enwere ike ijikwa viscosity nke ngwọta MC site na ịgbanwe paramita dịka okpomọkụ na ntinye uche.
4. Nhazi ihe nkiri:
CMC:
Ọ na-akpụ ihe nkiri doro anya ma na-agbanwe agbanwe mgbe a na-awụpụ ya site na mmiri mmiri ya.
Ihe nkiri ndị a na-achọta ngwa ọrụ n'ime ụlọ ọrụ dịka nkwakọ ngwaahịa nri na ọgwụ.
MC:
Ọ nwekwara ike ịmepụta ihe nkiri mana ọ na-adị mfe ma e jiri ya tụnyere ihe nkiri CMC.
5. Ụlọ ọrụ nri:
CMC:
A na-ejikarị ya eme ihe dị ka ihe na-eme ka ihe sie ike, ihe na-eme ka ihe sie ike, na ihe na-eme ka ihe dị nro na ihe oriri dị ka ice cream, ihendori, na ihe ndị e ji ekpuchi ihe.
Ike ya ịgbanwe ọdịdị na mmetụta ọnụ nke ihe oriri na-eme ka ọ baa uru n'ụdị nri.
MC:
A na-eji ya eme ihe dịka CMC na ngwaahịa nri, ọkachasị na ngwa ndị chọrọ nhazi gel na nkwụsi ike.
6. Ọgwụ:
CMC:
A na-eji ya eme ihe n'ụdị ọgwụ dị ka ihe na-ejikọ ihe, ihe na-emebi ihe, na ihe na-agbanwe viscosity n'imepụta mbadamba.
A na-ejikwa ya eme ihe n'ụdị ude na gel n'ihi na ọ nwere mmetụta rheological.
MC:
A na-ejikarị ya eme ihe dị ka ihe na-eme ka ihe sie ike ma na-eme ka ahụ dị nro n'ọgwụ, ọkachasị n'ọgwụ mmiri ọnụ na ngwọta anya.
7. Ngwaahịa Nlekọta Onwe:
CMC:
A na-ahụ ya n'ọtụtụ ihe nlekọta onwe onye dịka ezé ezé, shampoo, na ude dị ka ihe na-eme ka ahụ sie ike ma na-eme ka ọ sie ike.
MC:
A na-eji ya eme ihe n'ụzọ yiri nke CMC, na-eme ka usoro nlekọta onwe onye dị mma ma kwụsie ike.
8. Ngwa Ụlọ Ọrụ:
CMC:
A na-arụ ọrụ n'ụlọ ọrụ dịka ákwà, akwụkwọ, na seramiiki maka ikike ya ịrụ ọrụ dị ka ihe na-ejikọ ihe, ihe na-agbanwe rheology, na ihe na-ejide mmiri.
MC:
A na-ahụ ya ka ọ na-arụ ọrụ n'ihe owuwu, agba, na ihe ndị e ji agwakọta ya n'ihi na ọ na-eme ka ọ sie ike ma na-ejikọta ya.
ebe carboxymethylcellulose (CMC) na methylcellulose (MC) bụ ihe ndị sitere na cellulose nwere ọtụtụ ọrụ ụlọ ọrụ mmepụta ihe, ha na-egosipụta ọdịiche dị na nhazi kemịkalụ ha, àgwà mgbaze, profaịlụ viscosity, na ojiji. Ịghọta ọdịiche ndị a dị oke mkpa maka ịhọrọ ihe ndị sitere na ya maka ojiji pụrụ iche na ụlọ ọrụ dị iche iche, site na nri na ọgwụ ruo na nlekọta onwe onye na ngwa ụlọ ọrụ mmepụta ihe. Ma ọ bụ mkpa maka ihe na-eme ka pH dị nro dị ka CMC na ngwaahịa nri ma ọ bụ ihe na-eme ka okpomọkụ dị ka MC na usoro ọgwụ, ihe ndị sitere na ya na-enye uru pụrụ iche ahaziri maka ihe achọrọ na ngalaba dị iche iche.
Oge ozi: Maachị-22-2024