Application of hydroxyethylcellulose in coatings(HEC)


What is hydroxyhydrocellulose?

Hydroxyethyl cellulose (HEC), a white or pale yellow, tasteless, non-toxic fibrous or powdered solid, prepared by alkaline cellulose and ethylene oxide (or chloroethanol), is a non-ionic soluble cellulose ethers.

A coating is coated on the surface of a protected or decorated object, and can form a continuous film firmly attached to the coating.

Hydroxy , based cellulose and water-based paint encounter what happens?

Hydroxyethyl cellulose HEC soluble dry hot water or cold water, high temperature or boiling does not precipitate, make it has a wide range of soluble and viscosity characteristics, and non-thermal gel;

water retention capacity is twice higher than that of field-based cellulose, with good flow regulation;

The dispersion ability of HEC is poor compared to the recognized methylcellulose and hydroxypropyl methylcellulose, but is particularly strong to protect colloids.


So how do you use hydroxyethyl cellulose?

First, the production can be directly added-this method is particularly simple, short time.

Add clean water to the bucket of the high-cut mixer, start stirring at low speed and slowly sieve hydroxyethyl cellulose into the solution.

Continue stirring until all the particles are wet.

Then add preservatives, various additives, such as pigments, dispersing additives, ammonia, etc., and stir until all hydroxyethyl cellulose is completely dissolved (the solution viscosity is significantly increased) before adding other components in the formula for reaction.

Two, equipped with mother solution A higher concentration of mother liquid is provided first and then added to the product.

This method has the advantage of greater flexibility, which can be directly added to the finished product, but must be properly stored.

This method step is similar to most of the steps in method .

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