Isingeniso se-Hydroxyethyl Methyl Cellulose HEMC

Ulwazi Oluyisisekelo lweI-Hydroxyethyl Methyl Cellulose

Igama lesiShayina: i-hydroxyethyl methyl cellulose
Igama lesiNgisi: Hymetellose328
Igama lesiShayina: i-hydroxyethyl methyl cellulose; i-hydroxyethyl methyl cellulose; i-hydroxymethyl ethyl cellulose; i-2-hydroxyethyl methyl ether cellulose
Igama lesi-English elithi: Methylhydroxyethylcellulose; Cellulose; 2-hydroxyethyl methyl ether; HEMC; Tyopur MH[1]
I-Chemistry: I-Hydroymethylmethylecellulose; I-Hydroxyethylmethylcellulose; I-Hydroxymethylethylcellulose.

Ama-molecule: C2H6O2 xCH4O x PhEur 2002 achaza i-hydroxyethylmethylcellulose njenge-cellulose ene-O-methylated ngokwengxenye, ene-O-hydroxymethylated ngokwengxenye. Imininingwane ehlukene ivezwa ngokwe-viscosity ebonakalayo kuma-mPas esisombululo samanzi esingu-2% w/v ku-20°C.
Isisindo sama-molecule: I-PhEur 2002 ichaza i-hydroxyethylmethylcellulose njenge-cellulose ene-O-methylated ngokwengxenye, ene-O-hydroxymethylated ngokwengxenye. Imininingwane ehlukene ivezwa ngokwe-viscosity ebonakalayo kuma-mPa esisombululo samanzi esingu-2% w/v ku-20°C.

Izici eziyinhloko ze-hydroxyethyl methyl cellulose (HEMC) yilezi:

1. Ukuncibilika: incibilika emanzini kanye nezinye izinyibilikisi eziphilayo, i-HEMC ingancibilika emanzini abandayo, ukuhlushwa kwayo okuphezulu kunqunywa kuphela yi-viscosity, ukuncibilika kuyahlukahluka nge-viscosity, lapho i-viscosity iphansi, kulapho ukuncibilika kukhulu khona.

2. Ukumelana nosawoti: Imikhiqizo ye-HEMC ayi-non-ionic cellulose ethers futhi ayiwona ama-polyelectrolyte, ngakho-ke uma kukhona usawoti wensimbi noma ama-electrolyte e-organic, azinzile ezixazululweni zamanzi, kodwa ukungezwa ngokweqile kwama-electrolyte kungabangela i-gelation kanye nemvula.

3. Umsebenzi womphezulu: Njengoba isixazululo samanzi sinomsebenzi womsebenzi womphezulu, singasetshenziswa njenge-ejenti yokuvikela ye-colloid, i-emulsifier kanye ne-dispersant.

4. Ijeli Yokushisa: Uma isixazululo samanzi somkhiqizo we-HEMC sishiswa kufikela ekushiseni okuthile, siba yi-opaque, amajeli, bese sakha i-precipitate, kodwa uma sipholiswa njalo, sibuyela esimweni sokuqala sesisombululo, futhi le jeli kanye nemvula kwenzeka. Izinga lokushisa lincike kakhulu ezintweni zokugcoba zazo, izinsiza zokumisa, ama-colloid okuvikela, ama-emulsifier, njll.

5. Ukungasebenzi kahle kwe-metabolic kanye nephunga eliphansi kanye nephunga: I-HEMC isetshenziswa kabanzi ekudleni nakwezokwelapha ngoba ayigaywanga futhi inephunga eliphansi kanye nephunga eliphansi.

6. I-Antifungal: I-HEMC inekhono elihle lokulwa ne-fungus kanye nokuqina okuhle kwe-viscosity ngesikhathi sokugcina isikhathi eside.

7. Ukuqina kwe-PH: Ukuthamba kwe-viscosityI-HEMCIsixazululo samanzi somkhiqizo asithinteki kakhulu yi-asidi noma i-alkali, futhi inani le-pH lizinzile phakathi kuka-3.0-11.0.

Ukusetshenziswa: I-Hydroxyethyl methyl cellulose ingasetshenziswa njenge-ejenti yokuvikela i-colloid, i-emulsifier kanye ne-dispersant ngenxa yomsebenzi osebenzayo womphezulu wesisombululo samanzi. Isibonelo sokusetshenziswa kwayo simi kanje: Umphumela we-hydroxyethyl methyl cellulose ezimpahleni zesimende. I-Hydroxyethyl methylcellulose iyimpuphu emhlophe engenaphunga, engenambitheki, engenabuthi encibilika emanzini abandayo ukuze yakhe isixazululo esicacile nesiqinile. Inezakhiwo zokujiya, ukubopha, ukuhlakaza, ukuhlanganisa, ukwakha ifilimu, ukumiswa, ukumunca, ukugaya, ukusebenza ebusweni, ukugcina umswakama nokuvikela ama-colloid. Ngenxa yomsebenzi osebenzayo womphezulu wesisombululo samanzi, ingasetshenziswa njenge-ejenti yokuvikela i-colloid, i-emulsifier kanye ne-dispersant. Isixazululo samanzi se-Hydroxyethyl methyl cellulose sinomoya omuhle wokufudumala kwamanzi futhi siyi-ejenti yokugcina amanzi esebenza kahle kakhulu.