HEC in water-based coatings hydroxyethyl cellulose (HEC) has a variety of properties in water-based coatings, mainly including the following aspects:
Thickening action:
Water retention:
It can improve the stability of the polymerization system in a wide pH range.
The coating is easier to spread on the substrate when brushing or rolling, forming a flat coating film.
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Significantly improve the viscosity of waterborne coatings and help prevent the coating from hanging during construction.
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Suspension performance:
Protective colloid:
It can make pigments and fillers uniformly suspended in the paint to avoid precipitation and caking.
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Dispersion effect:
It can promote the uniform dispersion of additives such as pigments and fillers to ensure the consistency of paint color and performance.
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Improve leveling:
Stability:
It has good anti-mildew performance, can effectively prevent pigment and filler settling, and provide sufficient storage stability for the paint.
Helps keep moisture in the paint, prolongs the opening time of the paint, and facilitates construction operations.
Film forming property:
It is helpful to form a continuous and uniform coating film and improve the quality and performance of the coating film. Helps keep moisture in the paint, prolongs the opening time of the paint, and facilitates construction operations.
Pseudoplasticity:
The aqueous solution has pseudoplasticity, that is, the viscosity decreases with the increase of the rotational speed ratio. When the latex paint containing HEC is constructed with brush or roller, the surface smoothness can be improved and the working efficiency can be improved. Shampoos containing HEC have good fluidity, consistency, and are easy to dilute and disperse.
Water-based coating