Uthini umahluko phakathi kwe-xanthan gum kunye ne-HEC

I-Xanthan gum kunye ne-Hydroxyethyl cellulose (HEC) zombini ii-hydrocolloids ezisetyenziswa kakhulu kumashishini ahlukeneyo, ngakumbi kukutya, amayeza, kunye neemveliso zokhathalelo lomntu. Ngaphandle kokufana okuthile kwizicelo zabo, zahlukile ngokwendlela yokwakheka kweekhemikhali, iipropathi kunye nokusebenza kwazo.

1.Ulwakhiwo lweChemical:

I-Xanthan gum: Yipolysaccharide ephuma kwi-fermentation ye-carbohydrates, ngokukodwa i-glucose, yi-bacterium Xanthomonas campestris. Iqulethe umqolo weentsalela zeglucose kunye namatyathanga asecaleni eeyunithi zokuphinda ze-trisaccharide, kubandakanywa imannose, i-glucuronic acid, kunye neglucose.

I-HEC: I-Hydroxyethyl cellulose yi-ether ye-cellulose engekho i-ionic ephuma kwi-cellulose, i-polysaccharide eyenzeka ngokwemvelo efumaneka kwiindonga zeeseli zesityalo. I-HEC iguqulwa ngokuzisa amaqela e-hydroxyethyl kwi-cellulose backbone.

2.Ukunyibilika:

Xanthan gum: Ibonisa ukunyibilika okuphezulu kumanzi abandayo kunye nashushu. Yenza izisombululo ze-viscous eziphezulu nakwiindawo eziphantsi.

I-HEC: I-Hydroxyethyl cellulose iyanyibilika emanzini, kwaye ukunyibilika kwayo kunokwahluka ngokuxhomekeke kwiqondo lokutshintshwa (DS) kwamaqela e-hydroxyethyl. I-DS ephezulu ikhokelela ekunyibilikeni okungcono.

3.I-Viscosity:

Xanthan gum: Iyaziwa ngeempawu zayo zokujiya ezingaqhelekanga. Nangona kugxininiso oluphantsi, i-xanthan gum inokunyusa kakhulu i-viscosity yezisombululo.

I-HEC: I-viscosity yezisombululo ze-HEC nazo zixhomekeke kwizinto ezifana nokugxininiswa, ukushisa, kunye nesantya sokucheba. Ngokuqhelekileyo, i-HEC ibonisa iimpawu ezintle zokujiya, kodwa i-viscosity yayo iphantsi xa ithelekiswa ne-xanthan gum kwiindawo ezilinganayo.

4.Izimilo zokuCheba ezibhityileyo:

Xanthan gum: Izisombululo ze-xanthan gum zibonisa ukuziphatha okuchetywa kwe-shear, oku kuthetha ukuba i-viscosity yabo iyancipha phantsi koxinzelelo lwe-shear kwaye iphinda ibuyele xa uxinzelelo lususiwe.

I-HEC: Ngokufanayo, izisombululo ze-HEC zikwabonisa ukuziphatha kwe-shear-thinning, nangona ubungakanani bunokwahluka ngokuxhomekeka kwibakala elithile kunye neemeko zesisombululo.

5.Ukuhambelana:

Xanthan gum: Iyahambelana noluhlu olubanzi lwezinye i-hydrocolloids kunye nezithako ezisetyenziswa ngokuqhelekileyo ekutyeni nasekulungiseni ukhathalelo lomntu. Iyakwazi nokuzinzisa i-emulsions.

I-HEC: I-Hydroxyethyl cellulose nayo iyahambelana nezithako ezahlukeneyo kwaye ingasetyenziswa ngokudibeneyo nezinye izinto ezityebileyo kunye nezizinzisi ukuphumeza iipropati ezifunwayo ze-rheological.

6.I-Synergy kunye nezinye iiThickeners:

I-Xanthan gum: Ibonisa iziphumo ze-synergistic xa idityaniswe nezinye ii-hydrocolloids ezifana ne-guar gum okanye i-louste bean gum, ekhokelela ekuphuculweni kwe-viscosity kunye nokuzinza.

I-HEC: Ngokufanayo, i-HEC inokubambisana namanye ama-thickeners kunye neepolymers, inikezela ngeendlela ezahlukeneyo ekuqulunqeni iimveliso ezinobumba obuthile kunye neemfuno zokusebenza.

7.Iindawo zeSicelo:

I-Xanthan gum: Ifumana ukusetyenziswa okubanzi kwiimveliso zokutya (umz., iisosi, izinxibo, iimveliso zobisi), iimveliso zokhathalelo lomntu (umzekelo, izinto zokuthambisa, iikhrimu, intlama yamazinyo), kunye neemveliso zamashishini (umz., ukugrumba ulwelo, iipeyinti).

I-HEC: I-Hydroxyethyl cellulose isetyenziswa ngokuqhelekileyo kwiimveliso zokunyamekela komntu (umzekelo, iishampu, ukuhlamba umzimba, iikhrimu), amayeza (umzekelo, izisombululo ze-ophthalmic, ukumiswa komlomo), kunye nezinto zokwakha (umz., iipeyinti, i-adhesives).

8. Iindleko kunye nokufumaneka:

Xanthan gum: Ngokuqhelekileyo kubiza kakhulu xa kuthelekiswa ne-HEC, ngokuyinhloko ngenxa yenkqubo yokubilisa ebandakanyekayo kwimveliso yayo. Nangona kunjalo, ukusetyenziswa kwayo ngokubanzi kunye nokufumaneka kwayo kunegalelo ekuzinzeni kwayo kwimarike.

I-HEC: I-Hydroxyethyl cellulose inexabiso elithe kratya xa ithelekiswa ne-xanthan gum. Iveliswa ngokubanzi ngokuguqulwa kweekhemikhali zeselulosi, eninzi kwindalo.

ngelixa i-xanthan gum kunye ne-HEC babelana ngezinto ezifanayo kwizicelo zabo njenge-hydrocolloids, babonisa ukungafani okuhlukeneyo ngokubhekiselele kwizakhiwo zabo zemichiza, i-solubility, i-viscosity, i-shear-thinning behavior, ukuhambelana, i-synergy kunye nezinye i-thickeners, indawo zesicelo, kunye neendleko. Ukuwuqonda lo mahluko kubalulekile ukuba abaqulunqi bakhethe eyona hydrocolloid ifanelekileyo kuqulunqo lwemveliso ethile kunye neempawu zokusebenza ezinqwenelekayo.