Therefore, conductive adhesive is a special adhesive with both adhesiveness and conductivity. As a conductive connecting material, conductive adhesive can be used for screen printing and directly forming complex printed circuits because of its high linear resolution and fluidity. Because of its low curing temperature, it can be used to connect conductive materials used at room temperature or low temperature; The coating process is simple, which can effectively improve production efficiency, save energy and reduce energy consumption. Because the matrix of conductive adhesive is a polymer material, it can be used as an interconnection material for solderless circuit boards, flexible printed circuit board and temperature-sensitive components by virtue of its flexibility, and conductive adhesive based on thermoplastic resin can also be used for post-weld repair. With the miniaturization of electronic devices and the thinning of sensor materials, conductive adhesive has become the first choice for connecting films and their leads. In addition, conductive adhesive can be coated on the surface of plastic shell to form an electromagnetic shielding layer to solve the increasingly serious electromagnetic shielding problem.
conductive adhesive
The main components of conductive silver paste are matrix resin, silver powder and additives. After curing, the matrix resin acts as the molecular skeleton of the conductive adhesive and plays the role of bonding. Therefore, the polymer resin determines the mechanical properties and adhesive properties of conductive silver paste. Accelerators can improve the curing speed and reduce the curing temperature. Silver powder forms a conductive network in the matrix resin to conduct electricity, but it is also affected by the matrix resin. The bonding reliability of conductive silver paste is determined by matrix resin and silver powder. Adding additives can improve the bonding reliability. Therefore, the selection of materials of each component and the determination of addition amount have great influence on the properties of conductive adhesive. The formula design of each component of conductive adhesive in advance can make conductive adhesive have excellent conductivity and adhesive strength.
operating characteristic
High adhesive strength; It has good conductivity and low resistance; Excellent aging resistance and temperature resistance; Widely used in electronic, semiconductor, mechanical and other industries conductive bonding.