The function and characteristics of polyacrylamide as coating additive

Polyacrylamide is a linear polymer water-soluble polymer, according to the different groups carried by the product, can be divided into anionic type, cationic type, non-ionic type and amphoteric polyacrylamide. The product is insoluble in most organic solvents, has good flocculation, and can reduce the friction resistance between liquids. Polyacrylamide is mainly used in Water Treatment Chemicals, Oilfield Chemicals, paper making, textile, geological exploration, mining, biomedicine, feed processing, etc., and can also be used as an additive in some industries. The following is mainly about the role of anionic polyacrylamide in coatings.

Anionic polyacrylamide used in the paint mainly plays the role of thickening and dispersing, adding the product in the paint can change the flow mechanics of the paint, improve the viscosity of the paint, change the physical properties of the paint, enhance the plasticity of the paint, can make the material system in the paint to maintain a dispersed state, no clumping, no precipitation, and so on. Make the material system of the paint maintain a stable suspension or emulsion state, ensure the paint has good fluidity and stability, and improve the performance of the paint.

The use of anionic polyacrylamide as a coating thickener has the following advantages: low cost, consumption, environmental protection, no pollution, no residue, easy to use, stable coating performance, conducive to construction.