Sodium Carboxymethyl Cellulose |9000-11-7

Carboxy methyl cellulose (CMC) ma ọ bụ cellulose chịngọm bụ mkpụrụ ndụ cellulose nke nwere otu carboxymethyl (-CH2-COOH) jikọtara ụfọdụ n'ime otu hydroxyl nke glucopyranose monomers nke mebere ọkpụkpụ azụ cellulose.A na-ejikarị ya eme ihe dị ka nnu sodium ya, sodium carboxymethyl cellulose.

A na-emepụta ya site na mmeghachi omume alkali-catalyzed nke cellulose na chloroacetic acid.Otu polar (organic acid) nke carboxyl na-eme ka cellulose soluble na kemịkalụ na-emeghachi omume.Njirimara arụ ọrụ nke CMC na-adabere n'ókè nke nnọchi nke usoro cellulose (ya bụ, ole n'ime otu hydroxyl esonyela na mmeghachi omume ngbanwe), yana ogologo ogologo nke usoro ọkpụkpụ cellulose na ogo nke nchịkọta. ndị nnọchi anya carboxymethyl.

A na-eji UsesCMC eme ihe na sayensị nri dị ka viscosity modifier ma ọ bụ thickener, yana ịkwado emulsions na ngwaahịa dị iche iche gụnyere ice cream.Dị ka ihe mgbakwunye nri, ọ nwere nọmba E466.Ọ bụkwa ihe mejupụtara ọtụtụ ngwaahịa na-abụghị nri, dị ka KY Jelly, ntacha eze, laxatives, ọgwụ nri nri, agba mmiri, ihe ncha, nha akwa na ngwaahịa akwụkwọ dị iche iche.A na-eji ya eme ihe n'ụzọ bụ isi n'ihi na ọ nwere nnukwu viscosity, adịghị egbu egbu, yana hypoallergenic.N'ime ihe ndị na-asa ákwà, a na-eji ya dị ka polymer nkwusioru ala nke e mere iji tinye n'elu owu na akwa cellulosic ndị ọzọ na-emepụta ihe mgbochi na-adịghị mma na ala na ngwọta ịsa ahụ.A na-eji CMC mee ihe mmanu n'ime anya mmiri na-adịghị agbanwe agbanwe (anya mmiri artificial).Mgbe ụfọdụ, ọ bụ methyl cellulose (MC) nke a na-eji, ma ndị na-abụghị polar methyl otu (-CH3) adịghị etinye ihe ọ bụla solubility ma ọ bụ chemical reactivity na base cellulose.

N'ịgbaso mmeghachi omume mbụ, ngwakọta na-emepụta ihe dịka 60% CMC gbakwunyere 40% nnu (sodium chloride na sodium glycolate).Ngwaahịa a bụ ihe a na-akpọ Technical CMC nke a na-eji na-asa akwa.A na-eji usoro nchacha ọzọ wepụ nnu ndị a iji mepụta CMC dị ọcha nke a na-eji eme nri, ọgwụ na dentifrice (ihe ntacha eze).A na-emepụtakwa akara “ọkara-ọcha” nke etiti, nke a na-ejikarị na ngwa akwụkwọ.

A na-ejikwa CMC na ọgwụ dị ka ihe na-eme ka ọ dị arọ.A na-ejikwa CMC na ụlọ ọrụ na-egwupụta mmanụ dị ka ihe na-eme ka mmiri na-egwupụta ala, ebe ọ na-arụ ọrụ dị ka ihe ngbanwe nke viscosity na onye na-ejide mmiri.Poly-anionic cellulose ma ọ bụ PAC sitere na cellulose a na-ejikwa ya na omume mmanụ.CMC bụ n'ezie Carboxylic Acid, ebe PAC bụ Ether.CMC na PAC, ọ bụ ezie na a na-emepụta ha site na otu ngwaọrụ (cellulose, ego na ụdị ihe eji eme ihe na-eduga ná ngwaahịa ikpeazụ dị iche iche. Nke mbụ na nke dị iche n'etiti CMC na PAC dị na radicalization nzọụkwụ. CarboxyMethyl Cellulose (CMC) bụ ma chemically na dị iche n'anụ ahụ na Polyanionic Cellulose.

A na-eji microgranular carboxymethyl cellulose insoluble eme ihe dị ka cation-exchange resin na ion-exchange chromatography maka ịdị ọcha nke Proteins.Presumably larịị nke derivatization bụ nnọọ ala nke mere na solubility Njirimara nke microgranular cellulose na-ejigide mgbe na-agbakwụnye zuru ezu ọjọọ ebubo carboxylate iche iche na-ekekọta nke ọma. ebubo protein.

A na-ejikwa CMC na ngwugwu ice na-emepụta ngwakọta eutectic nke na-ebute ebe na-ekpo ọkụ dị ala na ya mere ikike dị jụụ karịa ice.

A na-ejikwa CMC ngwọta aqueous chụsasịa carbon nanotubes.A na-eche na ụmụ irighiri CMC ndị dị ogologo na-ekpuchi nanotubes, na-ekwe ka ha gbasaa na mmiri.

A na-ejikwa EnzymologyCMC mee ihe nke ọma iji kọwaa ọrụ enzyme sitere na endoglucanases (akụkụ nke mgbagwoju cellulase).CMC bụ mkpụrụ osisi a kapịrị ọnụ nke ukwuu maka cellulases na-eme endo-acting dị ka emebere nhazi ya iji mebie cellulose ma mepụta saịtị amorphous nke dị mma maka ọrụ endglucanase.CMC bụ ihe a na-achọsi ike n'ihi na a na-atụ ngwaahịa catalysis (glucose) ngwa ngwa site na iji mbelata shuga assay dị ka 3,5-Dinitrosalicylic acid.Iji CMC na nyocha enzyme dị mkpa karịsịa n'ihe gbasara nyocha maka enzymes cellulase nke achọrọ maka ntụgharị ethanol cellulosic na-arụ ọrụ nke ọma.Agbanyeghị, ejirila CMC mee ihe n'ụzọ na-ezighi ezi na ọrụ mbụ ya na enzymes cellulase n'ihi na ọtụtụ jikọtara ọrụ cellulase dum na CMC hydrolysis.Dị ka usoro nke cellulose depolymerization na-aghọtakwu nke ọma, e kwesịrị ịrịba ama na exo-cellulases na-achịkwa na mmebi nke crystalline (eg Avicel) na ọ bụghị soluble (dịka CMC) cellulose.