Silicone leveling agent is a surface state control agent, which is widely used in coatings, printing inks, adhesives and other industries. The following is a detailed introduction to silicone leveling agent:
1. Definition and main driving force
The main driving force of silicone leveling agent comes from surface tension. It can effectively increase the surface tension of the coating film and make it reach a balanced state, which is very beneficial for the flow and leveling of the coating film. Poor surface tension is often the main source of surface defects of the coating film, and silicone leveling agent avoids these defects by adjusting the surface tension.
2. Types and modification methods
There are many types of silicone leveling agents. According to different modification methods, they can be divided into five types: end-modified silicone, alkyl-modified silicone, polydimethylsiloxane, silicone oil and polyether polyester-modified silicone. Silicone leveling agents prepared by different modification methods have different characteristics and effects. For example, alkyl-modified organosiloxane has defoaming function and can also improve thermal stability; polyether polyester-modified organosiloxane has excellent compatibility and can be used as a water-oil dual-purpose leveling agent.
3. Functions and Features
Organosilicone leveling agent has multiple functions such as compatibility, leveling, anti-shrinkage, recoating and anti-adhesion. It can significantly reduce the surface tension of the coating, improve the wettability of the substrate, prevent shrinkage, and improve gloss and smoothness. At the same time, the organosilicone leveling agent also has high-temperature thermal stability and is safe to use, making it an ideal choice for improving product quality.
4. Application Fields
Organosilicone leveling agent is widely used in light-curing coatings, solvent-based coatings, adhesives, printing inks and other fields. It can significantly improve the leveling performance and coating quality of the coating, making the coating more uniform and smooth, and reducing defects on the coating surface.
In summary, the organosilicone leveling agent is a powerful and widely used surface state control agent. It adjusts the surface tension of the coating to achieve the flow and leveling of the coating, and has made important contributions to the development of the coating industry.
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