Taw qhia ntawm Hydroxyethyl Methyl cellulose HEMC

Cov Lus Qhia Yooj Yim ntawmHydroxyethyl Methyl Cellulose

Suav Lub Npe: Hydroxyethyl Methyl Cellulose
English Lub Npe: Hymetellose328
Suav Alias: Hydroxyethyl methyl cellulose; Hydroxyethyl methyl cellulose; hydroxsymethyl ntawm ethyl cellulose; 2-Hydroxyethyl Methanthyl ether cellulose
Askiv Alias: Methylhydroxyethylcelleculose; Cellulose; 2-hydroxyethyl methyl ether; HEMC; Tyopur Mh [1]
Chemistry: Hydroymethyllethylecellulose; Hydroxyethyllethylcellose; Hydroxymethyletylcellulose.

Molecules: c2h6o2 xch4o x Peur 2002 nruab xyoo 2002 nruab nrab hydroxellulose li ib nrab o-methylated, ib nrab o-hydroxymethyleneated cellulose. Cov kev sib txawv yog qhia txog pom meej viscosity hauv mpa s ntawm 2% w / v aqueous daws ntawm 20 ° C.
Molecular Qhov hnyav: Pheur 2002 piav txog hydroxyethylcethylcelylulose li ib nrab-methylated, ib nrab o-hydroxymethylene cellulose. Cov kev sib txawv yog qhia txog pom meej viscosity hauv mpa s ntawm 2% w / v aqueous daws ntawm 20 ° C.

Cov yam ntxwv tseem ceeb ntawm hydroxyethyl methyl cellulose (hemc) yog:

1. Solubility: soluble hauv dej thiab qee cov kuab tshuaj organic yog txiav txim siab los ntawm viscosity nrog tsuas yog txiav txim siab los ntawm viscosity, qhov qis dua viscosity, muaj ntau dua cov solubility.

2. Ntsev tsis kam: hemc cov khoom lag luam tsis yog cov kev ua kom muaj zog, tab sis nyob rau hauv lub xub ntiag, yog nyob rau hauv lub xub ntiag, yog nyob rau hauv lub xub ntiag, tab sis nyob rau hauv lub xub ntiag, tab sis nyob rau hauv muaj cov electrolytes, tuaj yeem ua rau gelation thiab nag lossis daus.

3. Cov kev ua si saum npoo: Raws li cov kua aqueous muaj cov kev ua si saum npoo av, nws tuaj yeem siv ua tus neeg tiv thaiv colloid, emulsifier thiab dispersant.

4. Thermal Gel: Thaum lub HEMC cov tshuaj aqueous yog rhuab rau ib qho kub, tab sis thaum twg nws rov qab los rau thawj lub xeev, thiab cov dej nag thiab nag lossis daus tshwm sim Cov. Qhov kub yog nyob ntawm lawv cov roj siavants, txwv tsis pub AIDS, tiv thaiv kev tiv thaiv, emulsifiers, etc.

5. Cov tshuaj tsw qab thiab tsw thiab tsw qab: hemc tau siv dav hauv cov zaub mov thiab tshuaj vim tias nws tsis muaj ntxhiab thiab tsw qab.

6. Antifungal: HEMC muaj cov kabmob kab mob zoo thiab viscosity kev ruaj khov thaum lub sijhawm ntev cia.

7. Pho ruaj khov: viscosity ntawmTus tseem ceebCov khoom lag luam aqueous yog tsis yog cuam tshuam los ntawm cov kua qaub los yog alkali, thiab tus nqi PH yog qhov ruaj khov ntawm 3.0-11.0.

Daim ntawv thov: Hydroxyethy cellulose tuaj yeem siv ua colloid tiv thaiv tus neeg sawv cev, emulsifier thiab dispersant vim yog cov kev daws teeb meem saum npoo aqueous. Ib qho piv txwv ntawm nws daim ntawv thov yog raws li hauv qab no: cov kev cuam tshuam ntawm hydroxyethy cellulose ntawm cov khoom ntawm cov cement. Hydroxyether methylulose yog ntxhiab tsw qab, tsis muaj hmoov, tsis muaj hmoov nyob rau hauv dej txias kom tsim ib qho ntshiab, daws. Nws muaj cov khoom siv ntawm thickening, khi, emulsifying, zaj duab xis, nquag, tuav dej noo thiab tiv thaiv colloids. Vim yog cov kev ua haujlwm saum npoo hlau ntawm cov kua aqueous, nws tuaj yeem siv ua tus neeg sawv cev ntawm Colloid tiv thaiv, ib qho emulsifier thiab dispersant. Hydroxyelyl metric poluous kua aqueous kua txiv Muaj zoo hydrophilicity thiab yog lub siab-efficiency dej-tuav tus neeg sawv cev.