There are significant differences between conductive silicone and ordinary silicone in many aspects, as follows:
1. Material composition
Conductive silicone: In addition to the silicone-based material, conductive agents such as carbon black, silver powder, nickel-coated graphite powder, silver-coated copper powder and other conductive particles are added to make it a material with conductive function.
Ordinary silicone: Made of pure organic silicon compounds, it does not contain conductive agents and other ingredients.
2. Physical properties
Conductive properties: Conductive silicone has conductive properties, while ordinary silicone does not have this property.
Hardness and toughness: Conductive silicone is relatively hard, with a hardness usually between 50 and 70 degrees, and poor toughness; while ordinary silicone is relatively soft, with a hardness between 10 and 20 degrees, and good toughness.
Heat resistance: Although both have high temperature resistance, the temperature resistance of conductive silicone may change due to the addition of conductive agents, and it can usually be used at high temperatures without melting or deformation. Ordinary silicone also has a wider temperature resistance range, but its temperature resistance may be slightly lower than that of conductive silicone.
3. Application Scope
Conductive silicone: Mainly used in electronic devices that need to have conductive properties, such as temperature sensors, ESD suppressors, touch screens, anti-static electronic devices, mobile phone cases, seals of electronic devices, wiring, etc. In addition, conductive silicone is also used for power pipes, stress relief glue and cable plugs of cold shrink cable accessories and heat shrink cable accessories, conductors for bottom contact of keyboards, keys, etc., copier rollers, wire connection pipes, etc.
Ordinary silicone: Widely used in sealing, buffering, waterproofing, sound insulation and protection of various products, such as voltage line insulation, automotive interiors, kitchenware, medical equipment and other fields.
4. Production process
Conductive silicone: The production process of conductive silicone is relatively complicated. It is necessary to add conductive materials on the basis of ordinary silicone and ensure good contact and connectivity between conductive particles.
Ordinary silicone: The production process is relatively simple and does not require the addition of special ingredients such as conductive agents.
In summary, there are significant differences between conductive silicone and ordinary silicone in terms of material composition, physical properties, application scope and production process. Therefore, when choosing to use it, it should be considered according to specific needs to ensure the best use effect.