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Popular science: the thickening mechanism of polyurethane thickeners

 Last Update: 2022-09-08
 Source: Internet
 Author: User

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Original: Popular science: the thickening mechanism of polyurethane thickener

With the increase of people's awareness of environmental protection, water-based coatings have gradually replaced solvent-based coatings

Polyurethane products

Thickening mechanism of polyurethane thickener

Polyurethane thickener is nonionic, is a hydrophobic group modified ethoxy polyurethane polymer, molecular weight of 30,000 to 50,000, it has water solubility, molecular structure in the hydrophobic group, long hydrophilic chain and polyurethane group

In the aqueous system, the hydrophobic part of the molecule is associated with emulsion particles, pigment fillers, etc.

Polyurethane thickener has no effect on the gloss of the paint, the thickening effect is obvious at high shear rate, and the splash resistance of the paint is good during construction, so that the wet coating film can be thicker and the fullness of the paint film is higher

How to use polyurethane thickener:

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