Uyini umehluko phakathi kwe-xanthan gum ne-HEC?

I-Xanthan gum kanye ne-Hydroxyethyl cellulose (HEC) kokubili ama-hydrocolloid asetshenziswa kabanzi ezimbonini ezihlukahlukene, okuhlanganisa ukudla, imithi, izimonyo, nemikhiqizo yokunakekelwa komuntu siqu. Ngaphandle kokwabelana ngokufana okuthile ezimpahleni nasekusetshenzisweni kwazo, kunomehluko ohlukile phakathi kwalokhu kokubili.

Ukubunjwa Nesakhiwo:

I-Xanthan Gum:
I-Xanthan gumiyi-polysaccharide etholakala ekuvubeleni kwama-carbohydrate yi-bacterium i-Xanthomonas campestris. Iqukethe amayunithi eglucose, mannose, kanye ne-glucuronic acid, ahlelwe ngesakhiwo esinamagatsha amaningi. Umgogodla we-xanthan gum uqukethe amayunithi aphindaphindayo e-glucose ne-mannose, namaketanga aseceleni e-glucuronic acid namaqembu e-acetyl.

I-HEC (Hydroxyethyl Cellulose):
I-HECiphuma ku-cellulose, okuyi-polymer eyenzeka ngokwemvelo etholakala ezindongeni zamaseli ezitshalo. Ekukhiqizeni i-HEC, i-ethylene oxide isabela nge-cellulose ukwethula amaqembu e-hydroxyethyl kumgogodla we-cellulose. Lokhu kuguqulwa kuthuthukisa ukuncibilika kwamanzi kanye nezakhiwo ze-rheological ze-cellulose.

Izakhiwo:

I-Xanthan Gum:
I-Viscosity: I-Xanthan gum inika i-viscosity ephezulu ezixazululweni ezinamanzi ngisho nasezindaweni eziphansi, iyenze ibe i-ejenti yokuqina esebenzayo.
Ukuziphatha kwe-Shear-thinning: Izixazululo eziqukethe i-xanthan gum zibonisa indlela yokwenza i-shear-thinning, okusho ukuthi ziyancipha ukubonakala ngaphansi kwengcindezi ye-shear futhi zibuyisela i-viscosity yazo lapho ingcindezi isusiwe.
Ukuzinza: I-Xanthan gum inikeza ukuzinza kuma-emulsions nokumiswa, ukuvimbela ukuhlukaniswa kwesigaba.
Ukuhambisana: Ihambisana nezinhlobonhlobo zamazinga e-pH futhi ingamelana namazinga okushisa aphezulu ngaphandle kokulahlekelwa izici zayo zokujiya.

I-HEC:
I-Viscosity: I-HEC futhi isebenza njenge-thickener futhi ikhombisa i-viscosity ephezulu ezixazululweni ezinamanzi.
I-Non-ionic: Ngokungafani ne-xanthan gum, i-HEC ayiyona i-ionic, okwenza ingazweli kakhulu ekushintsheni kwe-pH namandla e-ionic.
Ukwenziwa kwefilimu: I-HEC yenza amafilimu abonisa ngale uma omisiwe, okwenza abe usizo ezinhlelweni ezifana nama-coatings nama-adhesives.
Ukubekezelela usawoti: I-HEC igcina i-viscosity yayo phambi kosawoti, okungaba nenzuzo ekubunjweni okuthile.

Isebenzisa:

I-Xanthan Gum:
Imboni Yokudla: I-Xanthan gum ivame ukusetshenziswa njenge-stabilizer, thickener, kanye ne-ejenti yokugaya emikhiqizweni yokudla ehlukahlukene, okuhlanganisa amasoso, okokugqoka, izinto zokubhaka, nemikhiqizo yobisi.
Izimonyo: Isetshenziswa ekwenziweni kwezimonyo njengamafutha okhilimu, izinto zokugcoba, kanye nomuthi wokuxubha ukuze kuhlinzekwe i-viscosity nokuzinza.
Uwoyela Negesi: I-Xanthan gum isetshenziswa ekumba uketshezi embonini kawoyela negesi ukulawula i-viscosity nokumisa okuqinile.

I-HEC:
I-Paints and Coatings: I-HEC isetshenziswa kakhulu kumapende asekelwe emanzini, ama-coatings, nama-adhesives ukulawula i-viscosity, ukuthuthukisa izakhiwo zokugeleza, nokuthuthukisa ukwakheka kwefilimu.
Imikhiqizo Yokunakekelwa Komuntu Siqu: Kuyisithako esivamile emikhiqizweni yokunakekelwa komuntu siqu njengama-shampoos, ama-conditioner, nama-creams ngenxa yokujiya nokuqiniswa kwayo.
Ezemithi: I-HEC isetshenziswa njengesibopho ekwakhiweni kwamathebulethi nanjengokuqina emithini engamanzi.

Umehluko:
Umthombo: I-Xanthan gum ikhiqizwa ukuvutshelwa kwebhaktheriya, kanti i-HEC itholakala ku-cellulose ngokuguqulwa kwamakhemikhali.
I-Ionic Character: I-Xanthan gum iyi-anionic, kuyilapho i-HEC ingeyona i-ionic.
Ukuzwela Usawoti: I-Xanthan gum izwela ekugxilweni kukasawoti ophezulu, kuyilapho i-HEC igcina i-viscosity yayo lapho kukhona usawoti.
Ukwakhiwa Kwefilimu: I-HEC yakha amafilimu asobala lapho omisiwe, angaba nenzuzo ekugqokeni, kuyilapho i-xanthan gum ingabonisi le ndawo.

I-Viscosity Behaviour: Nakuba kokubili i-xanthan gum ne-HEC inikeza i-viscosity ephezulu, ibonisa ukuziphatha okuhlukile kwe-rheological. Izixazululo ze-Xanthan gum zibonisa ukuziphatha kokunciphisa i-shear, kanti izixazululo ze-HEC ngokuvamile zibonisa ukuziphatha kwe-Newtonian noma ukushefa okuthambile.
Izicelo: Nakuba kunokugqagqana okuthile ekusetshenzisweni kwazo, i-xanthan gum isetshenziswa kakhulu embonini yokudla futhi njengesengezo soketshezi lokumba, kuyilapho i-HEC ithola ukusetshenziswa okubanzi kumapende, ama-coatings, kanye nemikhiqizo yokunakekelwa komuntu siqu.

kuyilapho i-xanthan gum ne-HEC yabelana ngokufana okuthile njengama-hydrocolloid asetshenziselwa ukuqina nokusimamisa izinhlelo zamanzi, ayahluka emthonjeni wawo, uhlamvu lwe-ionic, ukuzwela kukasawoti, izakhiwo zefilimu, kanye nezinhlelo zokusebenza. Ukuqonda lo mehluko kubalulekile ekukhetheni i-hydrocolloid efanelekile yokwakheka okuthile nezinto ezifiswayo.