Nano-diamond fillers can greatly improve the thermal conductivity of materials

Abstract Carbodeon has developed a nano-diamond filler thermal conductivity material that increases the thermal conductivity of the polymer by 25% and significantly improves the polymer's performance in the electronics and LED industries. Carbodeon was originally made with polyamide 66...
Carbodeon has developed a nanodiamond filler thermal conductivity material that increases the thermal conductivity of the polymer by 25% and significantly improves the polymer's performance in the electronics and LED industries.

Carbodeon was initially tested with polyamide 66 as a reference material, containing 44% boron nitride as a thermal filler, and later developed a new material containing 44.9% boron nitride and 0.1% nano diamond powder. As a result, the thermal conductivity of the polyamide 66 was increased by an average of 25%.

The new filler not only improves the thermal conductivity, but also does not affect the mechanical properties of electrical insulation or other materials, making it the best choice for electronics and LED manufacturers.

Vesa Myllymaki, CTO of Carbodeon, said: "The increase in thermal conductivity of the filler is mainly due to diamond. Its thermal conductivity is very high, about 2000 W/mK. The company mainly adjusts the surface chemistry of diamond particles. Sex, using a hybrid process to develop nanocomposites, so that nanodiamonds and polymers have a good interface."

The bombardment of artificial nano-diamonds has very active surface chemistry, which is easy to agglomerate in the application of 4-6 nanometer granular materials, which is a historical problem. So the company adjusted the surface chemistry of the nanodiamonds so that the particles dispersed and the two materials were continuously fused together by the parent material, especially the polymer. As a result, diamonds with many features can be combined with economical and low-concentration materials to create new functional effects.

Myllymaki added: "Using the company's advanced technology and adding a small amount of nano-diamonds has effectively improved the chemical properties of raw materials. Now we are developing a series of application customers and have been showing manufacturers that it can bring The benefits. We know that we have not fully explored the more functions of nanodiamonds, and communicated with customers to explore new challenges, and we have been very excited about it." (Excerpt from: "Carbodeon Thermally-Conductive Nanodiamond Filler Gives 25% Performance Increase", translation: Ma Yanping)

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