How is the conductive performance of conductive silicone adjusted through formulation?
Publish Time: 2025-01-02
Conductive silicone is a composite material that combines the elasticity and conductive properties of silicone rubber. It is widely used in electronics, communications, medical and aerospace. The key to adjusting its conductive properties lies in the formula design and production process of conductive silicone.The conductive properties of conductive silicone are mainly determined by the conductive fillers inside it. Common conductive fillers include conductive carbon black, graphite, metal powder and plated conductive particles. The distribution, content and particle size of these conductive fillers in the silicone rubber matrix will directly affect the conductive properties of conductive silicone.To adjust the conductive properties of conductive silicone, it is first necessary to select a suitable conductive filler and determine its optimal content in the silicone rubber matrix. Generally, the higher the content of conductive filler, the better the conductive properties, but it will also increase the hardness of the material and reduce its elasticity. Therefore, it is necessary to find a balance between conductive properties and physical properties.In addition to the content of conductive filler, its distribution and particle size are also key factors affecting conductive properties. In order to obtain uniform conductive properties, the conductive filler needs to be evenly distributed in the silicone rubber matrix. This usually requires special mixing and molding processes to achieve. At the same time, the particle size of the conductive filler will also affect the conductive properties of conductive silicone. The smaller the particles, the more stable the conductive properties, but the production cost will also increase accordingly.In addition, some special additives such as coupling agents and vulcanizers can be added to the formula of conductive silicone to enhance the bonding between the components and improve the overall performance of the material. The addition of these additives will also have a certain impact on the conductive properties, so it is necessary to take comprehensive considerations into account when designing the formula.In summary, the adjustment of the conductive properties of conductive silicone is a complex process, which requires comprehensive consideration of factors such as the selection, content, distribution and particle size of the conductive filler. Through reasonable formula design and production process, conductive silicone materials with excellent conductive properties and physical properties can be obtained.
