The production method of double-layer transparent electromagnetic shielding film

The potential harm of electromagnetic radiation to human health has attracted high attentionDouble layer transparent electromagnetic shielding filmAs an effective protective material, its manufacturing method is particularly important. This article will conduct in-depth analysis from multiple dimensions such as material selection, process flow, and performance testing to explore how to produce efficient double-layer transparent electromagnetic shielding films.

Material selection

To make a double-layer transparent electromagnetic shielding film, it is necessary to first select suitable materials. Generally speaking, transparent conductive materials are the key to producing double-layer shielding films. The commonly used transparent conductive materials on the market currently include indium tin oxide (ITO) films, zinc oxide films, etc. These materials have both good transparency and high conductivity, which can effectively shield electromagnetic waves and protect the human body from radiation damage.

technological process

The process of making a double-layer transparent electromagnetic shielding film usually includes multiple steps such as material preparation, cleaning, vacuum evaporation, photolithography, etching, etc. Firstly, the selected transparent conductive material is subjected to surface treatment to ensure its surface is clean and smooth, which is conducive to the subsequent process. Next, a layer is deposited on the substrate using vacuum evaporation technologyConductive filmForm the first layer of shielding film. Then, photolithography and etching processes are used to prepare patterns on the first layer of shielding film, followed by evaporation and processing to form the second layer of shielding film. Finally, conduct performance testing to ensure that the shielding effect of the double-layer shielding film meets the requirements.

performance testing

The performance testing of double-layer transparent electromagnetic shielding film is a crucial step in the manufacturing process. Common testing methods include electromagnetic shielding effect testing, transmittance testing, conductivity testing, etc. The electromagnetic shielding effect test can be completed through professional shielding instruments to evaluate the shielding effect of double-layer shielding films on electromagnetic waves at different frequencies; The transmittance test is conducted to test the transparency of the double-layer shielding film, ensuring that it does not affect the normal use of the display device; The conductivity test is conducted to verify whether the conductivity of the double-layer shielding film meets the standard requirements. These tests will provide strong support for the quality assurance of double-layer shielding films.

conclusion

Make double-layer transparentElectromagnetic shielding filmIt is a complex manufacturing process that requires the selection of appropriate materials, precise manufacturing processes, and rigorous performance testing. Only by properly grasping these aspects can high-quality and efficient double-layer shielding films be produced, effectively protecting the human body from the harm of electromagnetic radiation. I hope that the content of this article can inspire practitioners and researchers in related fields, and promote continuous innovation and progress in the production technology of double-layer transparent electromagnetic shielding films.