China Fluorosilane coupling agents match the organofunctional group on the silicon atom with the type of resin polymer to be bonded, which can guide which silane coupling agent to use in a specific application. The organic group on the silane of the Chinese Fluorosilane coupling agent can be a reactive organic group or a non-reactive organic group. These groups can be hydrophobic or hydrophilic, or have various thermal stabilizing properties.
Because of the different organic structures, the solubility parameters of the groups are different; to some extent, this will affect the interpenetration between the polymer system and the Chinese Fluorosilane coupling agent system used for surface treatment. The selection of Chinese Fluorosilane coupling agents should include matching chemical reactivity, solubility, structural characteristics, and even thermal stability of organosilanes with the same parameters in the polymer structure.
The number of reactive sites occupied by the specific surface area of the object to be treated (substrate) and the thickness of the surface covered by the Chinese Fluorosilane coupling agent are the key factors to determine the amount of coupling agent required for silicification of the substrate surface. To obtain monolayer coverage, the Si-OH content of the matrix needs to be determined first.