Hydroxyethyl cellulose（HEC）
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China [CN] Application Properties
1. High thickening efficiency and wide range of viscosity grades, to get any desired thickening efficiency.
2. Good compatibility with most inorganic salts and a wide range of gum and resin.
3. Anti-biodegradable HEC powder products have excellent stability, to ensure a nice shelf life for paint.
4. Good protective colloid activity, to prevent coagulation of solid particles in the coating.
5. Less insoluble matter, clear and transparent aqueous solution.
6. Small viscosity fluctuation.
7. High purity, low moisture content, low ash content.
Anti- biodegradation performance
The use of an excellent HEC thickener with anti-biodegradable properties minimizes viscosity loss.
The solution properties l
HEC hydration time counts from the initial wetting to a moment when the solution starts to become viscous. Hydration time could be varied to meet a special requirement. HEC hydration time, apparently affected by the pH value.Typically ranges from 4 to 25 minutes.
The solution properties ll
In the actual conditions of industrial applications, shear rate is an important factor to consider when the amount of hydroxyethyl cellulose HEC required to achieve a certain viscosity. Generallyspeaking, the higher the shear rate, the lower the viscosity.
The solution properties lll
The most important property of hydroxyethyl cellulose powder is that it acts as a thickener, in creasing the viscosity of the liquid,and its thickening depends on its concentration (shown below). In addition, the effect of different viscosity grade on the thickening property can alsobe clearly seen, under the other constant parameters, the viscosity of HEC thickener increases with the increase of viscosity grade.
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