1. Reduce surface tension: PEG can be spontaneously embedded in water to form a film. It can reduce the surface tension of water, thus reducing the interaction between liquid and entity, and in some cases, it can make liquid flow more.
2. Increase the shear rate: PEG can be used as a polymer additive in the high-speed flowing water environment, which indicates that a key point is formed in the liquid, thus forming smaller pores and changing the dynamic properties of the fluid.
3. Reduce the friction coefficient: PEG is a complex polymer, which can form an irregular layer in liquid. When the liquid passes through these disordered layers, its friction coefficient decreases, thus reducing the friction between liquid particles and thus reducing the resistance of the liquid.