A17557-040

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Electromagnetic interference (EMI) and radio frequency interference (RFI) are major industrial concerns that often lead to costly mistakes, especially in industries dealing with sensitive electronics. Shielding and absorbing materials are a necessary component of any system designed to minimize or eliminate interference, and one such material is A17557-040. In this article, we will discuss the application fields and working principle of A17557-040, a polyolefin-based, highly-shielded composite barrier material.

Application Fields

A17557-040 has a wide range of applications, including automotive, transportation, telecommunications, electronics, military, and aerospace. Its light weight, superior shielding performance, and abrasion resistance make it ideal for these industries, where it is typically employed for its shielding properties. The material can also be used in other electromagnetic interference (EMI) and radio frequency interference (RFI) applications, such as protecting radiofrequency (RF) or microwave signals from interference, protecting networks from unauthorized access, improving cell phone network coverage in congested areas, and providing control over electronic noise in audible range.

Working Principle

A17557-040 is a polyolefin-based composite material. It consists of two layers: the external layer is made of highly conductive aluminum foil, while the internal layer is made of conductive polypropylene. The highly conductive aluminum foil is designed to provide a high level of shielding from electromagnetic waves. The internal layer of conductive polypropylene further enhances the shielding performance by diffusing and absorbing the electromagnetic waves.

The shield effectiveness of A17557-040 is based on three factors: the shielding effectiveness of the aluminum foil, the absorption characteristics of the conductive polypropylene, and the reflectivity of the material. The aluminum foil provides good shielding from electromagnetic waves, while the polypropylene absorbs the waves and diffuses them, further extending the shielding performance. Finally, the material itself is designed to be highly reflective, so that even the smallest leaks of electromagnetic radiation are reflected back to the source.

In addition to its shielding performance, A17557-040 also has excellent physical properties. It is light weight, abrasion resistant, flexible, and resistant to corrosion and chemical attack. These properties make it ideal for use in a variety of applications, including automotive, telecommunications, military, and aerospace.

Conclusion

A17557-040 is a polyolefin-based composite material specifically designed to provide superior shielding performance from electromagnetic interference (EMI) and radio frequency interference (RFI). The material consists of an external layer of highly conductive aluminum foil and an internal layer of conductive polypropylene, which together provide a high level of shielding performance. The material is also light weight, abrasion resistant, and resistant to corrosion and chemical attack, making it ideal for a variety of application fields, including automotive, telecommunications, military, and aerospace.

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