Silicone rubber is originally an excellent insulation material, but with the development of society, people not only require materials to have their inherent properties, but also hope to add other properties that meet the requirements while retaining this characteristic. This has led to the emergence of conductive silicone rubber, which is a very active branch of conductive polymer materials. Conductive silicone rubber not only retains the characteristics of its rubber matrix material such as strong plasticity, easy processing, and high resilience, but also obtains different conductive properties through the different types and amounts of conductive fillers added, allowing conductive silicone rubber to be used in aerospace, electronic computers, and other fields Electronic shielding and many other fields have been applied.

Classification of conductive silicone rubber
Conductive silicone rubber can be broadly divided into three categories based on its different vulcanization methods: hot vulcanized silicone rubber, room temperature vulcanized silicone rubber, and liquid silicone rubber.
Conductive silicone rubber can be divided into four categories based on its different conductive properties: semiconductor conductive silicone rubber, anti-static conductive silicone rubber, conductive conductive silicone rubber, and high conductive conductive silicone rubber.

Preparation of conductive silicone rubber
The preparation of conductive silicone rubber includes mechanical mixing method, solution mixing method, or melt blending method. The rubber matrix and conductive filler are fully mixed together to evenly fill the conductive filler in the rubber matrix, forming a stable conductive network and forming an electric current. It is necessary to ensure that conductive silicone rubber has both the elastic characteristics of rubber and the electrical conductivity.

The main components of conductive silicone rubber are rubber matrix, conductive fillers, vulcanizing agents, and other materials. As a key material determining the excellent or good conductivity of conductive silicone rubber, the selection of conductive fillers is particularly crucial. Conductive fillers mainly include carbon and metal systems. Carbon based conductive filler is currently the most widely used type of conductive filler, with a wide variety of types, mainly including carbon fiber, carbon black, graphite, graphene, and carbon nanotubes. Carbon based conductive fillers have good conductivity, large surface area, and light texture, and the conductive silicone rubber produced has a certain reinforcing effect. It occupies an important position in conductive silicone rubber. Metal based conductive fillers are relatively simple, all of which are materials such as metal powders, metal oxides, and metal fibers. The commonly used metal fillers are mostly silver, copper, aluminum, etc. The color of metal based conductive fillers is much richer than that of all black carbon based conductive fillers.

About the conductive silicone rubber,please check: Electrical conductivity liquid silicone rubber IOTA 7750