Electromagnetic shielding film (low resistance film)

Electromagnetic shielding membrane, also known as a low -resistance film, is a material for electromagnetic shielding. It can block the spread and interference of the electromagnetic field and protect the normal work of electronic equipment.

1. The principle of electromagnetic shielding membrane: The electromagnetic shielding membrane is composed of the conductive material. The shielding effect is achieved by blocking the dissemination of the electromagnetic field and absorbing electromagnetic waves. The conductive material is usually metal (such as copper, aluminum, etc.) or a polymer with conductive performance, which can effectively absorb electromagnetic waves and avoid interference with surrounding electronics.

2. Application of electromagnetic shielding membranes: The electromagnetic shielding membrane is widely used in electronic equipment, communication equipment, automotive electronics, aerospace and other fields. In electronic devices, it is often used for shielding treatment of electronic products such as mobile phones, computers, tablets, to prevent the impact of electromagnetic radiation on human health and interference between equipment.

3. Performance indicators of electromagnetic shielding membranes: The main performance indicators of electromagnetic shielding membranes include shielding effects, conductivity, thickness and corrosion resistance. The shielding effect is a key indicator for evaluating the performance of the electromagnetic shielding membrane. Generally, the shielding efficiency is described as a decibel (DB). The conductivity represents the conductivity of the membrane material, which affects the quality of the shielding effect. In addition, the electromagnetic shielding membrane must have sufficient thickness and corrosion resistance to ensure its long -term stable shielding performance.

4. Preparation methods of electromagnetic shielding membranes: There are many preparation methods for electromagnetic shielding membranes, including physical cold coating, chemical coating, solution-gel method, and heat evaporation. The choice of preparation technology depends on specific application requirements and material attributes. Commonly used preparation processes include vacuum steaming, sputtering, and wet preparation.

5. Precautions for using electromagnetic shielding membranes: When using electromagnetic shielding membranes, you need to pay attention to the surface treatment, installation process and detection method of the material. For example, there is no gap between the membrane material and the equipment during the installation process to avoid affecting the shielding effect. In addition, for the shielding of high -frequency signals, the high -frequency response characteristics of the electromagnetic shielding membrane are also required.

-Electronic circuit: ITO conductive membrane can be used to make components such as conductive circuits, electrodes, capacitors, etc., which are widely used in the electronic circuit field.