Carboxymethyl Cellulose (CMC) bụ ihe dị mkpa polymer na-agbaze mmiri nke a na-ejikarị na nri, ọgwụ, kemịkalụ kwa ụbọchị, textiles na ubi ndị ọzọ. N'ime ụlọ ọrụ nri, otu n'ime ihe kachasị mkpa eji CMC eme ihe bụ ihe na-agba agba. Thickeners bụ klas nke mgbakwunye na-abawanye viscosity nke mmiri mmiri na-enweghị nke ukwuu na-agbanwe ihe ndị ọzọ Njirimara nke mmiri mmiri.
1. Chemical Ọdịdị na ndim ụkpụrụ nke carboxymethyl cellulose
Carboxymethylcellulose bụ ihe sitere na cellulose etolite site na dochie akụkụ nke hydroxyl otu (-OH) nke cellulose na otu carboxymethyl (-CH2COOH). Akụkụ nhazi ya bụ isi bụ yinye β-D-glucose ugboro ugboro. Iwebata nke otu carboxymethyl na-enye CMC hydrophilicity, na-enye ya ezigbo solubility na ike ịgba mmiri na mmiri. Ụkpụrụ ịgbara ya na-adabere na isi ihe ndị a:
Mmetụta ọzịza: CMC ga-azacha mgbe ọ gbasasịrị mmiri mmiri n'ime mmiri, na-eme usoro netwọkụ, nke mere na a na-ejide mkpụrụ ndụ mmiri na nhazi ya, na-amụba viscosity nke usoro ahụ.
Mmetụta ụgwọ: Otu carboxyl dị na CMC ga-abụ nke ionized na mmiri iji mepụta ụgwọ na-adịghị mma. Otu ndị a na-ebo ebubo ga-eme ka electrostatic repulsion na mmiri, na-eme ka agbụ molekụla gbasaa wee mepụta ngwọta nwere nnukwu viscosity.
Ogologo ogologo na itinye uche: Ogologo yinye na ngwọta ngwọta nke mkpụrụ ndụ CMC ga-emetụta mmetụta ya na-eme ka ọ dị arọ. N'ikwu okwu n'ozuzu, ka ịdị arọ nke molekụla dị elu, ka viscosity nke ngwọta dị ukwuu; n'otu oge ahụ, ihe dị elu nke ngwọta ngwọta, viscosity nke usoro ahụ na-abawanye.
Njikọ njikọ nke molecular: Mgbe CMC na-agbaze na mmiri, n'ihi njikọ dị n'etiti ụmụ irighiri ihe na nhazi nke usoro netwọk, a na-egbochi ụmụ irighiri mmiri na mpaghara ụfọdụ, na-ebute mbelata nke mmiri mmiri nke ngwọta, si otú a na-egosi ndim mmetụta.
2. Ngwa nke carboxymethyl cellulose na ụlọ ọrụ nri
N'ụlọ ọrụ nri, a na-eji carboxymethylcellulose eme ihe n'ọtụtụ ebe dị ka onye na-agba mmiri. Ndị a bụ ụfọdụ ndapụta ngwa ngwa:
Ihe ọṅụṅụ na ngwaahịa mmiri ara ehi: N'ime ihe ọṅụṅụ mkpụrụ osisi na ihe ọṅụṅụ lactobacillus, CMC nwere ike ịbawanye viscosity nke ihe ọṅụṅụ ahụ, meziwanye uto na ịgbatị ndụ ndụ. Karịsịa na obere abụba na ngwaahịa mmiri ara ehi na-enweghị abụba, CMC nwere ike dochie akụkụ nke abụba mmiri ara ehi ma melite nhazi na nkwụsi ike nke ngwaahịa ahụ.
Sauce na condiments: Na mgbakwasa salad, tomato ihendori na soy sauce, CMC na-arụ ọrụ dị ka onye na-agbapụta ihe na nkwụsịtụ iji meziwanye otu ngwaahịa ahụ, zere delamination, ma mee ka ngwaahịa ahụ kwụsie ike.
Ice ude na ihe ọṅụṅụ oyi: Ịgbakwunye CMC na ice cream na ihe ọṅụṅụ oyi nwere ike ime ka nhazi nke ngwaahịa ahụ dịkwuo mma, na-eme ka ọ dịkwuo njọ ma na-agbanwe agbanwe, na-egbochi ịmepụta kristal ice na imeziwanye uto.
Achịcha na ngwaahịa esiri esi: N'ime ngwaahịa ndị esiri esi dị ka achịcha na achịcha, a na-eji CMC eme ihe dị ka ihe na-eme ka mgwakota agwa na-eme ka ntụ ọka ahụ dịkwuo mma, mee ka achịcha ahụ dị nro, na ịgbatị ndụ ndụ.
3. Ndị ọzọ thickening ngwa nke carboxymethyl cellulose
Na mgbakwunye na nri, a na-ejikarị carboxymethylcellulose eme ihe dị ka onye na-agba mmiri na ọgwụ, ihe ịchọ mma, kemịkalụ kwa ụbọchị na ụlọ ọrụ ndị ọzọ. Ọmụmaatụ:
Ụlọ ọrụ na-emepụta ọgwụ: N'ime ọgwụ, a na-ejikarị CMC eme ka sirop, capsules, na mbadamba nkume, ka ọgwụ ndị ahụ nwee mmetụta na-akpụzi na nkwụsị nke ọma, ma nwee ike imeziwanye nkwụsi ike nke ọgwụ.
Ihe ịchọ mma na kemịkalụ kwa ụbọchị: Na kemịkalụ kwa ụbọchị dị ka ntacha eze, ncha ntutu, gel ịsa ahụ, wdg, CMC nwere ike ịbawanye nkwụsi ike nke ngwaahịa ahụ, meziwanye ahụmịhe ojiji, ma mee ka tapawa edo edo ma kwụsie ike.
4. Nchekwa nke carboxymethyl cellulose
A kwadoro nchekwa nke carboxymethylcellulose site n'ọtụtụ ọmụmụ. Ebe ọ bụ na CMC sitere na cellulose eke ma ghara ịgbari ya ma tinye ya n'ime ahụ, ọ naghị enwe mmetụta na-adịghị mma na ahụike mmadụ. Ma Òtù Ahụ Ike Ụwa (WHO) na Kọmitii Ọkachamara Na-ahụ Maka Ihe Mgbakwunye Nri (JECFA) na-ekewa ya dị ka ihe mgbakwunye nri dị nchebe. Na usoro ezi uche dị na ya, CMC anaghị emepụta mmeghachi omume na-egbu egbu ma nwee ụfọdụ mmanu na mmetụta laxative na eriri afọ. Otú ọ dị, ịṅụbiga mmanya ókè nwere ike ịkpata ahụ erughị ala afọ, ya mere, ekwesịrị ịgbaso ụkpụrụ usoro onunu ogwu nke ọma na mmepụta nri.
5. Uru na ọghọm nke carboxymethylcellulose
Carboxymethylcellulose nwere uru na njedebe ya dị ka onye na-agba agba:
Uru: CMC nwere ezigbo mmiri solubility, nkwụsi ike okpomọkụ na nkwụsi ike nke kemịkalụ, bụ acid na alkali na-eguzogide ọgwụ, ọ dịghịkwa emebi ngwa ngwa. Nke a na-enye ohere iji ya mee ihe na mpaghara nhazi dị iche iche.
Ọdịmma: CMC nwere ike ibu oke viscous na nnukwu mkpokọta na adabaghị maka ngwaahịa niile. CMC ga-emebi emebi na gburugburu acidic, na-ebute mbelata na mmetụta ya siri ike. Achọrọ ịkpachara anya mgbe ị na-eji ya na mmanya ma ọ bụ nri acid.
Dị ka ihe dị mkpa thickener, carboxymethylcellulose na ọtụtụ-eji na nri, ọgwụ, ntecha na ndị ọzọ ubi n'ihi na ya ọma mmiri solubility, ndim na nkwụsi ike. Mmetụta na nchekwa ya dị elu na-eme ka ọ bụrụ ihe mgbakwunye a na-ejikarị na ụlọ ọrụ ọgbara ọhụrụ. Agbanyeghị, iji CMC dịkwa mkpa ka a na-achịkwa sayensị dịka mkpa akọwapụtara na ụkpụrụ usoro onunu iji hụ na njikarịcha arụmọrụ ya na nchekwa nri ya.
Oge nzipu: Nov-04-2024