Our Composite Graphene Film For Heat Dissipation

We have created a graphene film heat sink that combines carbon nano tubes, graphene, and diamond dust which enables it to work extremely well for thermal dissipation. The high polarizability of our nano materials enables them to spread evenly on the surface of our film, which maximizes the thermal radiation cooling effect.

While graphite film’s thermal conductivity is limited to the X and Y planes, our film has great thermal thermal conductivity across the Z plane as well.

Nano structure strengthens electrical insulation so that it can withstand voltage above 2kV. The thermal spreading layer has a high level of heat emission ability through infrared radiation and hence radiates heat well, even in a confined space. Depending upon your requirements, adding a metal layer beneath our film speeds up the heat emission to the nano structure layer, facilitating greater thermal radiation.

Pure single-layer graphene has a thermal conductivity of 5300 W/m*k. Single layer graphene film has a maximum thermal radiation emissivity-coefficients is 0.93, and the composite structure can enhance the emissivity-coefficients to 0.97.

This structure thanks to the graphene coating technology, can provide a thermal diffusivity of 2.2 ~ 3 times that of copper. In addition. it can provide greater thermal radiation than single layer graphene coating.

There are several layers that is optional:

-Such as graphene EMI layer, -Graphite layer, -And metal layer

Depending on the customer’s requirements, the metal layer can create a structure, such as shielding case with thermal management and heat sink function or chip package case.