The phenomenon of equipment heating is often encountered in daily life and work, and the reason is simple: when the equipment is running, the conversion of electrical energy into other energy cannot be fully achieved, and there will be some energy loss during the conversion process. A large part of this energy is lost in the form of heat, which is why it generates heat during operation.
In the past, when the field of thermal management was not yet widespread and in-depth, people often installed heat sinks directly on the surface of power components to solve heat dissipation problems. However, this type of heat dissipation effect was poor because there were gaps between the heat sink and the power consuming components, and air was a poor heat source, resulting in ineffective heat transfer from the surface of the power consuming components to the heat sink.
With the rise of the thermal management field, thermal interface materials have been widely used in various industries as effective thermal media to solve heat dissipation problems. Thermal silicone film is currently one of the widely used thermal interface materials and is highly favored by enterprises. So, what kind of thermal interface material is thermal silicone film?
Thermal conductive silicone sheet is made of silicone resin as the substrate, with added thermal and heat dissipation materials to create thermal conductive gap filling material. It is usually shipped in solid sheet form, and its size and shape can be customized according to customer needs. Due to its good flexibility, it effectively eliminates air at the interface and has good contact. Thermal conductive silicone sheet has self adhesiveness and can naturally adhere to the surface of heat sources, heat sinks or shells, reducing interface thermal resistance and improving thermal conductivity.
The excellent performance of thermal conductive silicone sheets has attracted many companies to choose them. So, what should companies pay attention to when choosing thermal conductive silicone sheets?
Firstly, the thermal conductivity of thermal conductive silicone film can directly reflect its thermal conductivity performance. There is a saying in the industry that purchasing depends on the thermal conductivity, while engineering depends on the thermal resistance. This intuitively indicates that when purchasing thermal conductive silicone film, the purchaser should first understand the thermal conductivity of the film. Therefore, when selecting thermal conductive silicone film, the thermal conductivity of the film should be determined first.
Then, the thermal resistance of the thermal conductive silicone film is one of the parameters that directly affects the performance of the thermal conductive silicone film. Using a case study, it can be explained that for two thermal conductive silicone films with the same thermal conductivity but different thermal resistances, the gasket with lower thermal resistance has better thermal conductivity. So besides paying attention to thermal conductivity, there is also attention to its thermal resistance value.
Secondly, the hardness, compression ratio, and thickness of the thermal conductive silicone film are generally required to be provided to the manufacturer during procurement, but many procurement personnel often overlook them. These parameters are related to the performance of the thermal conductive silicone film and require special attention.
Finally, the scale of manufacturers of thermal conductive silicone film often leads people to pursue big brands when buying things, and the same goes for thermal conductive silicone film. Strong thermal conductive silicone film manufacturers produce high-quality and cost-effective thermal conductive silicone film, so do not choose unknown manufacturers just because they are cheap.