Fluorocarbon silicone oil
There are roughly four types of additives. 1. Wetting and dispersing agent. 2. Leveling agent. 3. Defoaming agent. 4, feel agent. Among them, the two types are typical silicon surfactants, and the two types are different.
As a silicone additive, when it expresses different functions, they often have contradictory performances. For example, silicone wetting and dispersing agents can give coatings excellent wetting and dispersing effects, making the coatings stable and the combination of coatings and substrates. While improving the power, it is difficult to take into account the smoothness of the hand. As another example, the defoamer achieves the defoaming effect because its defoaming principle is based on the incompatibility with the coating and the stability of the surface energy when the coating is foamed, so the defoamer may bring another problem, even The coating film has problems such as shrinkage, and recoatability. For another example, the principle of the silicone hand feel agent is that the silicone groups can migrate to the coating surface, which gives the coating surface a smooth silicone feel. Another characteristic of silicone is its isolation, which may affect the recoating performance of the coating. The polyether group-containing silicone defoamer and feel agent are designed based on overcoming the above problems, fully considering its possible negative effects. However, in guiding the use, it is still necessary to consider the primary and secondary of the problem to determine the selection of reasonable additives to achieve the effect of one-pot.