Resistivity and electrical resistance of epoxy resins

Epoxy resin is widely used in our life now, and it has many characteristics. I will explain the resistivity and electrical resistance of epoxy resin for you below.

Resistivity (Resistivity): to describe the material and resistance characteristics usually use some surface resistance or volume resistance. We can simply say that the surface resistance is the resistance value measured between the development of the two electrode systems on the surface of the same social problem, the unit is Ω. Combining the shape of the electrode structure with the resistance value, the surface resistivity of the unit building area of the enterprise can be obtained through analysis and calculation. Volume resistance is also called volume resistivity and volume resistance correlation coefficient, which refers to the resistance value of the thickness that can be designed by analyzing and studying the main materials. Indicates the resistance of 1cm2 medium to leakage current, in Ω?m or Ω?cm. The greater the change in resistivity, the better the performance of the insulating material.

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Proof voltage: also known as the withstand voltage (dielectric strength), the higher the voltage applied to both ends of the colloid, the greater the electric field force on the charge in the material, the easier it is to ionize and collide, resulting in the breakdown of the colloid. The voltage at which the insulator breaks down is called the breakdown voltage of the object. When a 1 mm thick insulating material is broken down, the number of kilovolts of voltage that needs to be added is called the dielectric strength of the insulating material, referred to as the withstand voltage, and the unit is: Kv/mm. The insulating properties of insulating materials are closely related to temperature. The higher the temperature, the worse the insulating properties of the insulating material. In order to ensure the insulation strength, each insulating material has an appropriate allowable working temperature. Below this temperature, it can be used safely for a long time. If it exceeds this temperature, it will age rapidly.