Carboxymethyl cellulose (CMC) bụ polima mmiri na-agbaze site na cellulose, nke bụ polima organic kachasị n'ụwa. A na-emepụta CMC site na mgbanwe kemịkalụ nke cellulose, nke a na-ejikarị site na mkpụrụ osisi ma ọ bụ owu. A na-eji ya eme ihe nke ukwuu n'ọtụtụ ebe n'ihi ihe pụrụ iche ya, gụnyere ikike ya ịmepụta ihe ngwọta viscous na gels, ikike njikọ mmiri ya, na ike imebi ya.
Nhazi na Mmepụta Kemịkalụ
Nhazi kemịkalụ nke CMC nwere ọkpụkpụ cellulose nwere otu carboxymethyl (-CH2-COOH) nke ejikọtara na ụfọdụ otu hydroxyl (-OH) na monomers glucose. Usoro nnọchi a gụnyere ịgwọ cellulose na chloroacetic acid na mpaghara alkaline, na-eduga na nhazi nke sodium carboxymethyl cellulose. Ogo nke nnọchi (DS) na-ezo aka na ọnụọgụgụ nke otu hydroxyl kwa otu glucose nke ejirila otu carboxymethyl dochie, yana DS nke 0.4 ruo 1.4 bụ ihe a na-ahụkarị maka ọtụtụ ojiji.
Usoro mmepụta nke CMC gụnyere ọtụtụ usoro:
Mmezi Alkalịshọn: A na-eji ntọala siri ike, nke a na-akpọkarị sodium hydroxide, agwọ cellulose iji mepụta alkali cellulose.
Ndozigharị: A na-emeghachi omume na alkali cellulose na chloroacetic acid, nke na-eme ka otu carboxymethyl dochie otu hydroxyl.
Ịdị ọcha: A na-asa ma sachaa CMC ahụ dị ọcha iji wepụ ihe ndị na-adịghị na ya na ihe ndị na-eme ka ihe dị n'ime ya gabiga ókè.
Ịkpọcha na Ịgwe Ngwe: A na-akpọ CMC ahụ a sachara ma gwerie ya iji nweta nha ihe achọrọ.
Njirimara
A maara CMC maka ihe pụrụ iche ya, nke na-eme ka ọ baa uru n'ọtụtụ ụlọ ọrụ:
Mmiri Na-agbaze: CMC na-agbaze ngwa ngwa n'ime mmiri, na-emepụta ihe ngwọta doro anya, nke na-agbaze agbaze.
Mgbanwe Viscosity: Enwere ike ịgbanwe viscosity nke ngwọta CMC site na ịgbanwe ntinye na ibu molekul, na-eme ka ọ baa uru maka ịka njọ na ime ka ọ kwụsie ike.
Nhazi Ihe Nkiri: Ọ nwere ike ịmepụta ihe nkiri siri ike ma na-agbanwe agbanwe mgbe a kpọnwụrụ ya site na mmiri.
Njirimara nke ihe nrapado: CMC nwere ezigbo njirimara ihe nrapado, nke bara uru na ngwa dịka ihe nrapado na ihe mkpuchi.
Ike imebi ihe: Ebe ọ bụ na e si na cellulose eke nweta CMC, ọ na-emebi ihe nke ukwuu, nke na-eme ka ọ dị mma maka gburugburu ebe obibi.
Ụlọ Ọrụ Nri
A na-ejikarị CMC eme ihe dị ka ihe mgbakwunye nri (E466) n'ihi ikike ya ịgbanwe viscosity na ime ka emulsions sie ike n'ọtụtụ ngwaahịa nri. Ọ na-arụ ọrụ dị ka ihe na-eme ka ihe sie ike, ihe na-eme ka ihe sie ike, na ihe na-eme ka ihe dị arọ sie ike na ngwaahịa dịka ice cream, ngwaahịa mmiri ara ehi, ihe ndị a na-eme achịcha, na ihe e ji esi nri salad. Dịka ọmụmaatụ, na ice cream, CMC na-enyere aka igbochi mmepụta nke ice kristal, na-eme ka ọ dị nro.
Ọgwụ na ihe ịchọ mma
N'ụlọ ọrụ ọgwụ, a na-eji CMC eme ihe dị ka ihe na-ejikọ na mbadamba, ihe na-emebi ihe, na ihe na-eme ka viscosity dịkwuo mma n'ihe gbasara nkwụsịtụ na emulsions. Ọ na-arụkwa ọrụ dị ka ihe na-eme ka ọ kwụsie ike na ude, ude, na gels n'ụlọ ọrụ ịchọ mma. Ọdịdị ya na-adịghị egbu egbu ma na-anaghị ewe iwe na-eme ka ọ dị mma maka iji ya na ngwaahịa ndị a.
Akwụkwọ na Ákwà
A na-eji CMC eme ihe n'ụlọ ọrụ akwụkwọ dị ka ihe na-eme ka akwụkwọ dịkwuo ike ma nwee ike ibipụta ya. N'ihe gbasara ákwà, a na-eji ya eme ihe dị ka ihe na-eme ka ọ sie ike n'usoro agba agba na dịka ihe dị mkpa na mpempe akwụkwọ e ji ebi akwụkwọ, na-eme ka mbipụta ya dịkwuo mma ma dịkwa mma.
Ihe nhicha na ihe nhicha
N'ime ihe nhicha, CMC na-arụ ọrụ dị ka ihe na-egbochi ala, na-egbochi unyi ịtinyeghachi n'elu ákwà mgbe a na-asa ya. Ọ na-emekwa ka arụmọrụ nke ihe nhicha mmiri dịkwuo mma site n'ime ka ha dị nro ma kwụsie ike.
Ịgwupụta na Ịgwupụta Mmanụ
A na-eji CMC eme ihe n'ime mmiri mmanụ iji chịkwaa viscosity na dịka ihe na-agbanwe rheology iji mee ka apịtị olulu mmiri kwụsie ike, na-egbochi mgbawa nke olulu mmiri ma na-eme ka mwepụ nke mbepụ dị mfe. N'ime igwu ala, a na-eji ya dị ka ihe na-eme ka mmiri flotation na ihe na-eme ka mmiri flocculant dị.
Owuwu na Seramiki
N'ụlọ ọrụ owuwu ụlọ, a na-eji CMC eme ihe n'ụdị simenti na ngwa agha iji melite njigide mmiri na ịrụ ọrụ. N'ime seramiiki, ọ na-arụ ọrụ dị ka ihe na-ejikọ na plastik na ihe e ji eme ka seramiiki dị mma, na-eme ka ihe e ji akpụzi na ihe ndị na-akpọ nkụ ha ka mma.
Ihe Ndị A Na-atụle Banyere Gburugburu Ebe Obibi na Nchekwa
Ndị ọchịchị dịka FDA na-ewere CMC dị ka ihe dị nchebe (GRAS). Ọ naghị egbu egbu, ọ naghị akpata nfụkasị ahụ, ọ na-emebikwa ihe, nke na-eme ka ọ dị mma maka gburugburu ebe obibi. Agbanyeghị, usoro mmepụta ahụ gụnyere kemịkalụ ndị a ga-eji nlezianya jikwaa iji gbochie mmetọ gburugburu ebe obibi. Mwepụ na ọgwụgwọ kwesịrị ekwesị nke ihe mkpofu dị mkpa iji belata mmetụta gburugburu ebe obibi.
Ihe ọhụrụ na ntụziaka maka ọdịnihu
Mmepe ọhụrụ n'ọhịa CMC gụnyere mmepe nke CMC agbanwere agbanwe yana ihe ndị e ji eme ka ọ dịkwuo mma maka ngwa ụfọdụ. Dịka ọmụmaatụ, CMC nwere ibu molekul ahaziri ahazi na ogo nnọchi nwere ike inye arụmọrụ ka mma na sistemụ nnyefe ọgwụ ma ọ bụ dị ka ihe nkwakọ ngwaahịa dabere na bio. Na mgbakwunye, nnyocha na-aga n'ihu na-enyocha ojiji nke CMC na mpaghara ọhụrụ dịka injinia anụ ahụ na bioprinting, ebe biocompatibility ya na ikike nhazi gel nwere ike ịba uru nke ukwuu.
Carboxymethyl cellulose bụ ihe dị iche iche ma baa uru nke nwere ọtụtụ ojiji n'ọtụtụ ụlọ ọrụ dị iche iche. Ihe pụrụ iche ya, gụnyere mmiri ịgbaze, mgbanwe viscosity, na mbibi nke ihe ndị na-emebi emebi, na-eme ka ọ bụrụ ihe dị mkpa n'ọtụtụ ngwaahịa. Site na ọganihu na-aga n'ihu na mmepụta na mgbanwe ya, CMC dị njikere ịrụ ọrụ dị mkpa na mpaghara ọdịnala na nke na-apụta, na-enye aka na ọganihu teknụzụ na mgbalị nkwado.
Oge ozi: Jun-06-2024