Learn about Dasen’s pyrolytic graphite sheets in one minute

Dasen's pyrolytic graphite sheet (PGS) is a graphite with a structure close to a single crystal. It is made of polyimide film sintered at high temperature and rolled. The hexagonal crystal structure of the graphite is uniformly arranged in horizontal 2D structure. The graphite layer has a highly preferred orientation along the film surface similar to the highly oriented pyrolytic graphite, and the crystallinity is high.

Characteristics:

Thickness 12µm to 100µm  

Thermal conductivity 900 to 1950W/m.K  

Two to five times that of copper and up to seven times that of aluminum  

2mm bending radius - can bend 180 degrees more than 30000 times  

Stable environmental resistance and will not deteriorate overtime  

Shielding electromagnetic noise and providing EMI and thermal management solutions

Use:

Dasen's PGS are used to dissipate heat from heat sources, or to diffuse or disperse heat from hot spots (A>B)

It can also be used as a high-efficiency thermal interface material.

It shows the temperature of ABS surface, IC and PCB with 70um PGS in two different sizes, reducing the IC hot spot temperature.

Application:

In the camera design, heat can be transferred from the IC (LED) to the housing, reducing the heat dissipation required.

When applied to IGBT or switching FET modules, Dasen’s PGS acts as a cooling interface, reducing the required contact resistance and thermal immersion.