Izakhiwo ezisebenzayo ze-CMC (Carboxymethyl Cellulose)

I-Carboxymethyl Cellulose (Sodium Carboxyme Thyl Cellulose, CMC) i-carboxyboxesyleyletated desivative ye-cellulose, eyaziwa nangokuthi i-cellulose gum, futhi iyi-ionic cellulose gum ebaluleke kakhulu.

I-CMC imvamisa i-anionic polymer compound elungiselelwe ukuphendula i-cellulose yemvelo nge-caustic alkali ne-momochlororometic acid. Isisindo samangqamuzana esihlanganisiwe siyahlukahluka kusuka kwezinkulungwane eziningana kuya kwesigidi.

I-CMC ingeyokuguqulwa kwe-cellulose yemvelo, kanye nenhlangano yezolimo nezolimo yeNhlangano Yezizwe (i-FAO) kanye ne-World Health Organisation (WHO) ebiyibize ngokusemthethweni ngokuthi "kuguqulwe iselula". Indlela ye-synthesis ye-sodium carboxymethyl celtulose yasungulwa yiJalimane E. Jansen ngo-1918, futhi yagcwala ubunikazi ngo-1921 futhi yaziwa ngezentengiselwano, kwathi kwakhiwa ukuhweba eYurophu.

I-CMC isetshenziswa kabanzi ku-petroleum, geological, amakhemikhali nsuku zonke, ukudla, ukudla kwemithi kanye nezinye izimboni, ezaziwa ngokuthi "ezaziwa njenge-" Industrial MonoSodium glutamate ".

Izakhiwo zezakhiwo ze-CMC
I-CMC i-powder emhlophe noma ekhanyayo, i-granular noma i-fibrous aqine. Kuyinto yamakhemikhali ye-macromolecular engadonsa amanzi nokudumba. Lapho ijila emanzini, ingakha i-glue esobala ye-viscous. I-PH yokumiswa okumanzi kungu-6.5-8.5. Into ingukungabonakali ku-organic solvents efana ne-ethanol, ether, i-acetone ne-chloroform.

I-Solid CMC iqinile ekushiseni okukhanyayo nekamelo, futhi ingagcinwa isikhathi eside endaweni eyomile. I-CMC uhlobo lwe-cellulose ether, evame ukwenziwa ngamanani ekotoni amafushane (okuqukethwe ku-cellulose kuze kube yi-98%) noma i-sodium pulp, aphathwe nge-sodium monochloroacetate, isisindo se-sodium monochloroapetate, isisindo se-moleemar sendawo eyi-6400 (± 1000). Kunezindlela ezimbili zokulungiselela ukulungiselela: indlela yamalahle kanye nendlela ye-solvent. Kukhona neminye imicu yezitshalo esetshenziselwa ukulungiselela i-CMC.

Izici kanye Nezicelo
I-CMC akuyona nje kuphela i-emulsifing spintilizer enhle kanye nokuqina ezihlelweni zokudla, kepha futhi inokuqina okuhle kakhulu nokuncibilika, futhi ingathuthukisa ukunambitheka komkhiqizo nokwelula isikhathi sokugcina.

Ngo-1974, inhlangano yezolimo nezolimo yeZizwe Ezihlangene (i-FAO) kanye ne-World Health Organisation (WHO) evumele ukusetshenziswa kwe-CMC ehlanzekile ekudleni ngemuva kokucwaninga okunzima nokuhlolwa kobuthi kanye nokuhlolwa. Ukudla okuphephile (i-ADI) ye-International Standard yi-25mg / kg isisindo somzimba / usuku.

ukuqina nokuqina kwe-emulsion
Ukudla i-CMC kungaphazamisa futhi kusize iziphuzo eziqukethe amafutha namaprotheni. Lokhu kungenxa yokuthi i-CMC iba yi-colloid ebonakalayo ezinzile ngemuva kokuchithwa emanzini, futhi izinhlayiya zamaprotheni ziba izinhlayiya ezinekhokhiso efanayo ngaphansi kokuvikelwa kolwelwesi lwe-colloidal, olungenza izinhlayiya zamaprotheni esimweni esizinzile. Inomphumela othile wokuncipha, ngakho-ke kunganciphisa ukungezwani okungaphezulu phakathi kwamafutha namanzi ngasikhathi sinye, ngakho-ke amanoni angahluzwa ngokuphelele.

I-CMC ingathuthukisa ukuqina komkhiqizo, ngoba lapho inani le-PH lomkhiqizo liphambuka lisuka endaweni ye-isoelectric of the Protein, i-sodium carboxyyyl celtulese ingakha isakhiwo esiyinhlanganisela, esingathuthukisa ukuqina komkhiqizo.

Khulisa inqwaba
Ukusetshenziswa kwe-CMC ku-ayisikhilimu kungakhuphula izinga lokunwebisa kwe-ayisikhilimu, ukuthuthukisa ijubane lokuncibilika, nikeza isimo esihle nokunambitha, nokulawula usayizi nokukhula kwamakristalu eqhwa ngesikhathi sokuhamba nokugcinwa. Inani elisetshenzisiwe lingu-0.5% wokungezwa okuphelele okulinganiselwe.

Lokhu kungenxa yokuthi i-CMC inokugcinwa kwamanzi okuhle nokuhlakazeka, futhi ngokuhambisana nezinhlayiya zamaprotheni, ama-globules amafutha, nama-molecule wamanzi ku-colloid ukwakha uhlelo olufanayo nolwenzile.

Hydrophilicity kanye nokuvuselela kabusha
Le mpahla esebenzayo ye-CMC isetshenziswa ngokuvamile ekukhiqizeni isinkwa, okungenza umfaniswano wezinyosi, angenze umfaniswano wezinyosi, andise ivolumu, anciphise ama-DREGS, futhi anomphumela wokulondolozwa kokushisa nokuvuselelwa kokushisa; Ama-noodle angezwe nge-CMC anamandla amahle aphethe amanzi, ukumelana nokupheka, nokunambitheka okuhle.

Lokhu kunqunywa ngesakhiwo samangqamuzana se-CMC, okuyi-cellulose derivative futhi inenombolo enkulu yamaqembu ama-hydrophilic eqoqweni le-molecular: -Oh Group, ngakho-ke i-CMC ine-hydrophicity engcono kune-cellulose kanye namanzi abamba amandla.

ukusalela
I-Thixotropic CMC isho ukuthi amaketanga ama-macromolecular anenani elithile lokusebenzisana futhi athambekele ekwakheni isakhiwo esinezici ezintathu. Ngemuva kwesakhiwo esinezinhlangothi ezintathu senziwa, i-viscosity yekhambi iyanda, futhi ngemuva kwesakhiwo esinezici ezintathu sephukile, i-visa iyehla. I-Thixotropy Penomenon ukuthi ukuguqulwa okusobala okuguqukayo kuncike ngesikhathi.

I-Thixotropic CMC idlala indima ebalulekile ohlelweni lwe-Gelling futhi ingasetshenziswa ukwenza i-jelly, jam nokunye ukudla.

Ingasetshenziswa njenge-Clialifier, Foam Stabilizer, Khulisa i-OULFEEL
I-CMC ingasetshenziswa ekukhiqizweni kwewayini ukwenza ukunambitheka kube lula futhi kucebe nge-aftertaste ende; Ingasetshenziswa njenge-foam stabilizer ekukhiqizeni ubhiya ukwenza igwebu elicebile futhi lihlala isikhathi eside futhi lithuthukise ukunambitheka.

I-CMC uhlobo lwe-polyelectricyte, olungase libambe iqhaza ekuphendukeni okuhlukahlukene ewayinini ukuze lilondoloze ukulingana komzimba wewayini. Ngasikhathi sinye, futhi kuhlanganisa namakristalu asungule, aguqule ukwakheka kwamakristalu, aguqule izimo zokuba khona kwamakristalu ewayinini, futhi adale imvula. Ukuhlanganiswa kwezinto.