In the production of latex paint, can more than two kinds of emulsions be mixed?
Two or more polymer emulsions can be well mixed with each other as long as the charge properties of the colloidal particles do not conflict. For example, anionic and anionic, anionic and nonionic, nonionic and nonionic, nonionic and cationic, cationic and cationic emulsions can all be mixed with each other and keep it steady. However, when the charge properties of the two emulsions are opposite, for example, when anionic and cationic emulsions are mixed, they immediately break and flocculate.
After the two emulsions are mixed, the properties of the mixed emulsion are often between . Accordingly, sometimes it is desired to obtain certain requirements and there is no ready-made suitable emulsion, and it can be realized by combining two emulsions of different specifications. Obviously, this is much easier than finding or designing a new emulsion.
If the polymer types of the two mixed emulsions are the same, the appearance after mixing is generally invisible to the naked eye and is very uniform. If two emulsions with different are mixed, such as mixing styrene-acrylic emulsion and all-acrylic emulsion, sometimes it may look slightly cloudy in appearance, but the film of the mixed emulsion is still clear and transparent after drying.
Ming.
