How to Use Hydroxyethyl Cellulose to Be Effective?

As a Hydroxypropyl Methylcellulose Suppliers, I would like to share with you.

Add directly during production

1. Pour clean water into a large bucket equipped with a high-grade agitator.

2. Start stirring continuously at low speed and slowly sift the hydroxyethyl cellulose into the solution evenly.

3. Continue to stir until the particles are soaked.

4. Then add anti-fungal agents, alkaline additives, such as pigments, dispersing aids, and ammonia.

5. Stir until the hydroxyethyl cellulose is dissolved (the viscosity of the solution increases) before adding other ingredients in the formula, and grind until the finished product.

Equipped with mother liquor

This method is to prepare a higher concentration mother liquor first, and then add it to the latex paint. The advantage of this method is that it has greater flexibility and can be directly added to the finished paint, but it should be stored appropriately. The steps are similar to parts 1-4 in Method 1, except that it does not need to be stirred until it dissolves into a viscous solution.

HPMC for Tile Adhensive

Make porridge for later use

Since organic solvents are poor solvents for hydroxyethyl cellulose, these organic solvents can be used to prepare porridge. The most commonly used organic solvents are organic liquids in paint formulations such as ethylene glycol, propylene glycol and film formers (such as ethylene glycol or diethylene glycol butyl acetate). Ice water is also a poor solvent, so ice water is often used with organic liquids to prepare porridge. The hydroxyethyl cellulose of the porridge can be directly added to the lacquer, and the hydroxyethyl cellulose has been soaked in the porridge. When added to the paint, it will dissolve immediately and act as a thickening agent. After adding, continue to stir until the hydroxyethyl cellulose is dissolved and uniform. Generally, the porridge is made by mixing six parts of organic solvent or ice water with one part of hydroxyethyl cellulose. After about 6-30 minutes, the hydroxyethyl cellulose is hydrolyzed and swelled. In summer, the water temperature is generally too high, so it is not suitable to equip with porridge.

Use attention

Since the surface-treated hydroxyethyl cellulose is powder or cellulose solid, it is easy to handle and dissolve in water as long as the following matters are noted.

1. Before and after adding hydroxyethyl cellulose, stirring must be kept until the solution is transparent and clear.

2. Slowly sift into the mixing tank, and do not directly add the hydroxyethyl cellulose that has formed into lumps or balls into the mixing tank in large quantities or directly.

3. The water temperature and the pH value of the water have an obvious relationship with the dissolution of hydroxyethyl cellulose, so special attention must be paid.

4. Never add some alkaline substances to the mixture before the hydroxyethyl cellulose powder is warmed by water. Raising the PH value after warming up will help dissolve.

5. Add the anti-fungal agent as early as possible within the range.

6. When using high-viscosity hydroxyethyl cellulose, the concentration of the mother liquor should not be higher than 2.5-3%, otherwise the mother liquor is difficult to operate. After post-treatment, hydroxyethyl cellulose is generally not easy to form lumps or spheres, and it will not form insoluble spherical colloids after adding water.

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