The most common silicone oil additive used in water-based coating systems is polyether-modified silicone oil, where the value of m and n determines the content of siloxane segments in the structure, and the value of x and y determines the poly The molecular weight and hydrophilicity of the ether segment (x unit represents the number of propylene oxide units, is a hydrophobic unit, y unit represents the number of ethylene oxide units, is a hydrophilic unit, when x is greater than y, the polyether The segment is a hydrophobic segment. When x is less than y, the polyether segment is a hydrophilic unit.) The values of m, n, x, and y determine the performance of the corresponding polyether-modified silicone oil, and also determine their use Use as a water-based coating additive.
For example, when an auxiliary agent is needed to provide a better feel, it can be achieved by increasing the value of m, n. When an auxiliary agent is required to have a good defoaming ability, you can increase the value of m, n, x to reduce y When it is necessary to improve the safety of the use of additives and reduce the risk of paint film defects, it can be achieved by increasing m and reducing the value of n.