2024.01.09
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What type of material is “thermal conductive putty”
Mitsubishi Materials’ technology is applied not only to hard materials like metal but also to soft materials. An example of the latter is a thermal conductive material called “thermal conductive putty,” which facilitates the dissipation of heat generated in automobiles and electronic devices. In this issue, we will introduce the outstanding characteristics of this putty, which is soft like clay and flexibly formable.
an expert on materials
Dr. Materials
A doctor who loves materials devoted to research at a Mitsubishi Materials lab.
Clay-like thermal conductive putty dissipates heat toward the outside!
In electronic devices, CPUs generate heat from electric currents. If the heat remains in the electronic devices, they may malfunction, so it is necessary to quickly dissipate the heat toward the outside. Mitsubishi Materials’ thermal conductive putty can play an active role in this process. Applying the putty between a heated CPU and a heat dissipation compo- nent facilitates quicker dissipation of generated heat.
Air doesn’t transfer much heat… so close adhesion is the key!
Air hinders heat dissipation. Because air doesn’t transfer much heat, heat doesn’t dissipate smoothly when air remains between a heated, high-temperature component and a heat dissipation component. To solve this issue, our thermal conductive putty can be applied between them. As it is flexibly formable like clay when force is applied, the putty adheres the two components closely together when it is stuffed between their small ridges. In other words, it makes it difficult for air to pass between the components, resulting in more efficient heat dissipation. Mitsubishi Materials Group has created such new clay-like materials by combining its accumulated organic and inorganic material compounding technology.
【Areas of applications】
Electric vehicles
Our thermal conductive putty is expected to serve as a thermal conductive material supporting the operations of secondary lithium-ion batteries, semiconductors, and other products. In particular, electric vehicles face challenges in managing heat generation for secondary batteries due to the substantial electricity requirements. The thermal conductive putty can contribute to the further advancement of electric vehicles as it can withstand large amounts of electricity and high loads while effectively controlling the generated heat.
Hard, rubber-like thermal conductive materials were the previous trend. Compared to conventional materials, our clay- like thermal conductive material can easily adhere to compo- nents, resulting in efficient heat dissipation.
