Modification and coating of glass powder, an important binder in conductive silver paste

Conductive silver paste is commonly used for preparing conductive films or coatings, where glass powder is one of its components. Glass powder is mainly used as a substrate or base material for conductive silver paste to enhance conductivity and improve adhesion. The formulation of conductive silver paste typically includes the following components:

Conductive particles (silver particles): These are the main components of conductive silver paste, providing excellent conductivity.

Organic solvents: Used to form a paste-like substance for easy application on different surfaces.

Binders: Used to improve the adhesion of conductive silver paste to substrates (such as glass).

Surfactants: Surfactants are sometimes used to improve the dispersibility and wetting properties between conductive particles and substrates.

Additives: Additives such as stabilizers and leveling agents are included to improve the stability and processing properties of conductive silver paste.

Among these components, glass powder is mainly used as a substrate for conductive silver paste, aiding in the formation of uniform conductive films and providing structural support. Choosing the right glass powder helps adjust the physical properties of conductive silver paste, such as viscosity, adhesion, and optical transparency.

Typically, modified and coated glass powder can disperse better in conductive silver paste, and uniform dispersion can improve the consistency and conductivity of silver paste coating. Additionally, it enhances the adhesion between conductive silver paste and substrates, ensuring the stability and durability of conductive films.

TungKuLa particle surface modification and coating machine T-MIX is particularly suitable for the surface coating modification of glass powder. Through dual-stirring agitation, it can fully disperse glass powder, and the modified agent is atomized and sprayed into the modification tank after heating, mixing uniformly with glass powder at a specific temperature. The environment filled with atomized modification agent greatly enhances the contact between glass powder and modification agent, thereby increasing the modification and coating rate of glass powder to over 99%.