Flake silver powder is widely used in electronic pastes, conductive silver pastes, and LED epoxy conductive adhesives

Conductive flake silver powderIt is an important component of electronic materials, and its characteristics determine its application range and effectiveness in the production of conductive materials. This article will introduce the characteristics and application fields of conductive flake silver powder, and select suitable silver powder products according to different usage conditions.

Characteristic 1: Moderate particle size, reasonable loose density

The particle size of conductive flake silver powder has a significant impact on its performance. According to the requirements, conductive silver powder with a particle size of 1-12um can meet the production requirements of various conductive materials. Silver powder within this particle size range has good dispersibility and conductivity, which can achieve higher conductivity. At the same time, the loose packing density of silver powder is between 0.6-1.2g/ml, which enables it to better mix with other materials during processing and play a better role in the production of conductive materials.

Characteristic 2: Suitable compaction density and moderate specific surface area

The tap density is an indicator that guides the degree of arrangement of silver powder particles under their own gravity. During use, silver powder with appropriate compaction density can better fill gaps in conductive materials, form a continuous conductive network, and improve conductivity. According to the requirements, conductive flake silver powder with a tap density of 2.0-3.0g/ml is an ideal choice. In addition, the specific surface area is also an important factor affecting the conductivity performance. For conductive materials, the larger the specific surface area, the better the conductivity. According to experimental data, silver powder with a specific surface area between 1.5-2.5 m2/g (BET method) can meet the production requirements of various conductive materials, ensuring stable and reliable conductivity.

Application area one: Electronic paste, conductive silver paste, LED epoxy conductive adhesive

Conductive flake silver powder, as an important component of electronic materials, has a wide range of applications in electronic pastes, conductive silver pastes, and LED epoxy conductive adhesives. The conductive flake silver powder in electronic paste can form a conductive layer, providing good conductivity and ensuring the normal operation of electronic devices. Conductive silver paste is one of the indispensable materials for making electronic components such as capacitors, resistors, potentiometers, etc. The conductivity of silver powder determines the quality and effectiveness of conductive silver paste. In LED epoxy conductive adhesive, conductive silver flakes can form conductive pathways, causing the LED to produce strong light.

Application area 2: Electromagnetic shielding coatings, conductive coatings, conductive inks, conductive rubber, conductive plastics, conductive ceramics

Apart from electronic pastes andConductive silver pasteConductive flake silver powder also plays an important role in electromagnetic shielding coatings, conductive coatings, conductive inks, conductive rubber, conductive plastics, conductive ceramics and other fields. The conductive silver powder in electromagnetic shielding coatings can form a surface layer, absorb and reflect electromagnetic waves, and achieve shielding of electromagnetic radiation. The silver powder in conductive coatings and conductive inks can enhance the conductivity of materials, making them have good conductivity. Adding conductive flake silver powder to conductive rubber, conductive plastic, and conductive ceramics can improve the conductivity of the materials, making them suitable for use in electronic devices and conductive materials.

Choose appropriate silver powder products

According to different usage conditions, we can choose suitable conductive flake silver powder products for different application needs. For medium and high temperature conductor paste and electrode paste, we can choose ultrafine silver powder with moderate particle size and reasonable loose density. For the production of capacitors, resistors, potentiometers, and thick film hybrids, we can choose conductive silver powder with a specific surface area between 1.5-2.5 m2/g (BET method).

epilogue

　　Conductive flake silver powderIt is an important raw material for making conductive materials, and its characteristics determine the conductivity and application effect of the material. Choosing appropriate silver powder products according to different usage conditions can improve the quality and performance of conductive materials and meet the needs of different fields. In the future development, conductive flake silver powder will continue to play an important role in promoting the development of electronic materials.