Conductive adhesive is a material commonly used in electronic devices and connectors, which can provide a conductive path and has certain adhesive properties. Currently, the market mainly adopts
Filler type conductive adhesiveAmong them, epoxy resin adhesive occupies a dominant position. This article will introduce the main components and functions of conductive adhesives, and explore the importance of solvents in conductive adhesives.
1、 The main components of conductive adhesive
1. Conductive particles: One of the most important components in conductive adhesives is conductive particles, which can provide a conductive pathway for electrons or ions. Common conductive particles include metal nanoparticles, carbon nanotubes, etc., which can effectively conduct current.
2. Resin matrix: The resin matrix of conductive adhesive plays a supporting role in adhesive properties and can solidify to form the molecular skeleton structure of the adhesive. Common resin matrices such as epoxy resin, acrylic resin, and polyvinyl chloride can provide certain mechanical and adhesive properties for conductive adhesives.
3. Dispersive additives: Dispersive additives in conductive adhesives are used to regulate the dispersion state of conductive particles, ensuring the stability and consistency of conductivity.
4. Additives: Additives play an auxiliary role in conductive adhesives, such as adjusting viscosity, increasing adhesion, etc., which can improve the process performance and adhesion performance of conductive adhesives.
2、 The mainstream choice of filler type conductive adhesive
Filler type conductive adhesive is currently the main one used in the market
Conductive adhesiveAmong them, epoxy resin adhesive is the dominant type. Epoxy resin adhesive can cure at room temperature or below 150 degrees Celsius, and can also be formulated and customized according to needs. Therefore, epoxy resin adhesive has become the mainstream choice in the field of conductive adhesives.
3、 The importance of solvents
The filler in conductive adhesive generally accounts for more than 50% of the proportion, which increases the viscosity of the conductive adhesive and also affects the process performance of the adhesive. To solve this problem, solvents or reactive diluents need to be added for mixing to reduce the viscosity of the conductive adhesive and facilitate process operations. Although the solvent content in the conductive adhesive is not high, its role is very important and can affect the mechanical properties of the cured conductive adhesive.
Conclusion:
Conductive adhesive is an important electronic material that can provide a conductive path and adhesive properties. The commonly used conductive adhesives are
Filler type conductive adhesiveAmong them, epoxy resin adhesive is the mainstream choice. The main components of conductive adhesive include conductive particles, resin matrix, dispersing additives, and additives. In addition, solvents play an important role in reducing viscosity and adjusting process performance in conductive adhesives. With the continuous advancement of technology, the research and application of conductive adhesives will become more widespread, promoting the development of electronic technology.
