China took the lead in the water-based coating industry has made domestic water-based coating technology in the forefront of the world. Water-based process in various paint fields is in full swing, the proportion of water climbing. Compared with solvent-based systems, waterborne coatings have unparalleled advantages in environmental protection, product innovation and technological upgrading also let the performance of waterborne coatings not to mention more, "waterborne" in the contemporary, the benefit of future generations!
Waterborne coating system is limited by its own formulation design, in many aspects of the performance of the initial performance is not satisfactory, performance additives in improving its performance is indispensable.
Among them, silane coupling agent, as a kind of important performance additives, stands out and plays an important role in improving the performance of waterborne coatings.
Silicone coupling agents, as their name suggests, can "couple" two phase interfaces like a "bridge," forming a "molecular bridge" between two surfaces: organic and inorganic. The organic group of silane coupling agent can react with the corresponding organic group to connect the organic surface. The hydrolytic group can react with the active hydroxyl group on the inorganic surface to connect the inorganic surface. Thus, the silane coupling agent forms a strong chemical bond between the inorganic and organic interface. Silane coupling agent can be used to improve the adhesion of the resin coating to the substrate, improve the binding force of the filler in the resin, and improve the film resistance of the coating itself. Although they are small molecular silicone compounds, silane coupling agents also exhibit common characteristics with silicone polymers such as silicone resin, silicone rubber and silicone oil, such as excellent heat resistance, water resistance, low surface energy and so on.