What Are High Thermal Conductivity Insulators
The thermal conductivity of a material is the rate at which it transports heat from one point to another. It is an important property to have in a material for many reasons. It’s a useful measure of the rate at which heat moves through the material, and it’s also an indicator of the efficiency of a system in transporting heat to and from components. The thermal conductivity of a material is determined experimentally through an experiment that measures the rate at which heat moves through it at controlled conditions and temperatures.
Efficient Thermal Management in Electronics is usually measured at a temperature between 100°C and 150°C, although some manufacturers have developed low-temperature test methods that can lower the testing temperature range to as little as 25°C. The thermal conductivity of a material depends on the density and the temperature, with higher values at lower densities and colder temperatures. The value is determined by dividing the heat flow through the material by the temperature difference.
Among metals, copper has the highest thermal conductivity, followed by aluminum and gold. These metals are often used in electronic devices for their ability to conduct electricity, but they don’t have the same insulating properties as non-metals. The insulating properties of non-metals are primarily due to their high specific heat capacity, which is the amount of energy needed to raise the temperature of 1kg of a material by 1oC.
For example, glass has a very low specific heat capacity, while rubber has a relatively high specific heat capacity. In fact, it takes more energy to raise the temperature of a piece of rubber than it does for glass to melt. The specific heat capacity of a material is influenced by its chemistry, which in turn is affected by the type and size of the molecules that make up the material.
The thermal conductivity of a material can be influenced by the pressure that is applied to the material. This is because pressure can cause the atoms or molecules to be closer together, thus increasing the thermal conductivity of the material.
Another factor that can influence the thermal conductivity of a material is its water content. This is because the presence of water in a material increases its thermal conductivity, which is why it’s essential to keep moisture out of insulating products.
MTC offers a variety of thermally conductive insulators to meet your electronic device’s needs. Contact us today to learn more about our manufacturing capabilities and services or to request a quote.