21133377

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RF and EMI shielding and absorption materials are typically used to reduce the effects of electromagnetic interference. Electromagnetic interference (EMI) is any electromagnetic radiation that can interfere with the performance of electronics and communication systems. The effects of EMI are typically non-specific to a particular type of system but instead it affects all systems within a certain frequency range. Examples of EMI include radio wave interference from other electronic equipment, from power line disturbances, or from badly designed circuits or components. EMI can cause serious disruption to sensitive electronic equipment and can significantly reduce the performance of a system. EMI shielding and absorption materials are designed to attenuate or absorb EMI, preventing its effects from being visible.

21133377 is one such product offering RF and EMI shield and absorption. It is an air-permeable material, with the added ability to block EMI in the 2.45GHz range, whilst allowing air to pass through. The product is made up of an apertured PET film with a metalized top coating, and a nickel-coated metal mesh. The metalized coating provides EMI shielding, while the apertured holes in the film allow for air permeability which meets the requirements for food packaging. This material has a variety of applications in the automotive and electronic industries, as well as food packaging.

In the automotive industry, 21133377 is used as a multi-layer shield and absorber for automotive EMI problems. The material is used to reduce EMI emission, curbing possible interference and providing a higher quality build. It is often used in combination with laminated plastics and other metals to further enhance its capabilities. It is also used in the automotive industry to provide acoustic dampening for interior panels, reducing the amount of outside noise that enters the vehicle.

In the electronics industry, 21133377 is used as a cost-effective alternative to traditional shielding materials, such as solid copper. It\'s multi-layer construction provides an effective shield against EMI, whilst still remaining permeable to air and allowing for cost savings over traditional copper shielding materials. It is particularly useful for applications where an effective shield is required, without increasing the size and weight of the device.

For food packaging applications, 21133377 is used to provide an air-permeable layer which prevents the transfer of bacteria and other microorganisms. It ensures the freshness of the product, whilst also protecting it from external EMI. The product is used in both rigid and flexible packaging, and can be used in conjunction with other materials to provide a stronger barrier against bacteria and other microorganisms.

The working principle of 21133377 is relatively simple. The material\'s metalized top coating provides the necessary EMI shielding to prevent interference, whilst the apertures in the PET film allow for air permeability to ensure the freshness of the product. The nickel-coated metal mesh provides additional strength and support to the material, whilst also providing a barrier against bacteria and other microorganisms.

In conclusion, 21133377 is an effective and multi-functional RF and EMI shielding and absorption material. Its various applications across the automotive, electronics and food packaging industries demonstrate its versatility and effectiveness in reducing the effects of EMI. It is able to provide effective shielding, as well as air permeability, whilst remaining lightweight and cost-effective. It thus provides an ideal solution for a wide range of EMI and air permeability applications.

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