Water borne acrylic resin is generally bright or opalescent blue light semi bright (there are also reactions). When acrylonitrile is added to the polymerization formula, the molecular structure is micellar particle group. The general idea is that after adding water, the molecules become smaller and the particle size becomes smaller, and the transparency is further improved.
In practice, the water-based acrylic resin becomes opalescent after adding water.
What's going on? In fact, this is a normal phenomenon!
The micelles of waterborne acrylic resin emulsion (resin) are dispersed in water and form another group of molecules with H/O atoms of water. Some of them are directly related to water molecules (water is a special polar molecule, the positive pole of molecules attract the negative pole of adjacent molecules, and then molecules stick together.) In fact, the size of the molecule becomes larger, which is the reason why the appearance becomes more obscure.
The intuitive feeling is that the emulsion is dissolved in water, but it only dissolves in water. The molecular mass of the resin depends on the surface tension of itself and the water rather than the direct dissolution. When dissolved, it is the dispersion rather than the binding of molecules, such as sugar and edible salt.