宣城What are the main properties of FR4 fiberglass board at high temperatures?

FR4 fiberglass board is a common epoxy resin composite material, which is composed of glass fiber reinforcement material and epoxy resin matrix. Its main use is as a substrate material in the field of electronic and electrical appliances, with high strength, wear resistance, corrosion resistance, flame resistance and other excellent properties, in the electronic and electrical industry has been widely used. However, with the continuous development of the electronic and electrical industry, the requirements for materials are becoming higher and higher, and one of the important requirements is to have good performance in high temperature environments. Therefore, this paper will focus on the main performance of FR4 fiberglass board at high temperatures.

1. High temperature deformation performance

In high temperature environment, FR4 fiberglass board is prone to deformation, resulting in equipment failure or normal operation. This is mainly due to its low coefficient of thermal expansion, poor thermal stability, easy to be affected by thermal expansion and thermal contraction. Therefore, under high temperature environment, the deformation rate of FR4 fiberglass board will gradually increase. If this deformation is not controlled, it will lead to equipment damage or functional defects.

2. High temperature thermal conductivity

Due to the low thermal conductivity of FR4 fiberglass board, its thermal conductivity will be reduced in high temperature environments. This can cause local overheating of the material, leading to power outages or damage to the device.

3. High temperature flame retardant performance

FR4 fiberglass board as a kind of electronic and electrical materials, its flame retardant performance is very important. In high temperature environments, the flame retardant properties of FR4 fiberglass board may change. Although FR4 fiberglass board itself is a non-flammable material, it is still easy to burn at high temperatures. In a high temperature environment, if there is a fire inside the equipment, there is no good flame retardant performance, it will cause the fire to spread.

4. High temperature electrical performance

FR4 fiberglass board as an electronic and electrical material, its electrical properties are also very important. At high temperatures, the electrical properties of FR4 fiberglass panels may change. For example, the dielectric constant and resistivity may change, which may cause the device to fail or decrease in function. When using FR4 fiberglass boards in high temperature environments, these effects must be taken into account and good electrical performance must be maintained by means of temperature control, for example.

5. High temperature durability

In high temperature environments, the durability of FR4 fiberglass board may be affected. For example, prolonged exposure to high temperatures may cause the material to age and deteriorate, which affects its strength and durability. This can lead to shorter device life and need to be replaced more frequently in the future.

In summary, the main performance of FR4 fiberglass board at high temperature mainly includes high temperature deformation performance, high temperature thermal conductivity, high temperature flame retardant performance, high temperature electrical performance and high temperature durability. In engineering applications, these factors must be considered comprehensively, and the appropriate materials and conditions of use must be selected to ensure that the equipment can operate normally in high temperature environments.