Simple comparison between thermal conductive silicone grease and thermal conductive silicone film

1. Thermal conductivity: The thermal conductivity of thermal conductive silicone grease is higher than that of thermal conductive silicone film, which is 4.0-5.5w/m.k and 1.75-2.75w/m.k, respectively.

2. Insulation: The thermal conductive silicone grease has good insulation performance due to the addition of metal powder. The electrical insulation index of 1 mm thickness is over 3000 volts.

3. Morphology: Thermal conductive silicone grease is paste-like, and thermal conductive silicone film is sheet material.

4. Use: Thermal conductive silicone grease needs to be applied evenly, easily dirty around devices and cause short circuit: Thermal conductive silicone film can be cut at will, tear off the protective film and paste directly, the tolerance is very small and clean.

5. Thickness: As a filling gap thermal conductive material, thermal conductive silicone grease is limited. The thickness of thermal conductive silicone film varies from 0.3 mm to 16 mm, which has a wide range of applications.

6. Thermal conductivity effect: thermal conductive silicone grease particles are large, easy to aging, thermal conductivity effect is general: thermal conductive silicone film can greatly increase the thermal conductivity area between heating body and radiator because of its soft and elastic, and the processing technology is fine and complex, and the product stability is strong.

7. Price: Thermal conductive silicone grease has been widely used, the price is low, thermal conductive silicone film is mostly used in LED lighting, power supply, routers, switches, notebook computers and other thin and small precision electronic products, the price is slightly higher.

Questions and Answers to Frequent Questions on Thermal Conductive Silicone Films

Question: Isn't it necessary to install metal radiators (HEAT SINK) to achieve the function of heat dissipation?

Answer: Because the metal radiator itself is hard, if the installation angle and the contact pressure are not equal, its heat source can not be effectively transmitted to the radiator. If the soft material of heat conduction is added to the interface of the two, it can effectively overcome the shortcomings of the contact surface.

Q: What is the timing and application of adding thermal conductive silicone film?

Answer: Generally speaking, if you can't install fans and metal heat dissipation in the space and location of the electronic products you designed, you can use thermal conductive silicone film to directly contact IC and shell, and directly transfer heat source to the product's external cold air by means of heat conduction, so as to achieve the effect of heat dissipation.

Q: What are the benefits of adding thermal conductive silicone film to electronic products?

Answer: The most important problem of the product is stability besides function. If the general electronic parts work in high temperature environment for a long time, their life will decrease day by day, even cause damage. If the thermal conductive silicone film is added to IC to keep its working temperature under medium and low temperature, the life of the products will be prolonged effectively.

Question: Do desktop and laptop computers also use thermal conductive materials?

Answer: NBs with low noise or without fans usually achieve low noise or silence through the combination of heat conducting copper tubes and heat conducting silica film. Most desktop computers use heat conduction mostly in Nanqiao and Beiqiao chips, DDR memory using heat conducting tape, CPU using heat conducting paste, power supply using heat conduction. Silicone film.